42 results on '"Dentice d’Accadia, M."'
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2. Exergetic and exergoeconomic analysis of a renewable polygeneration system and viability study for small isolated communities
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Calise, F., Dentice d'Accadia, M., and Piacentino, A.
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- 2015
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3. Polygeneration
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Calise F., Vicidomini M., Cappiello F. L., Dentice D'Accadia M., Calise, F., Vicidomini, M., Cappiello, F. L., and Dentice D'Accadia, M.
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Polygeneration layout ,By-product ,Distributed generation ,Fuel - Abstract
This chapter aims at presenting the basic definitions and classifications for polygeneration systems by especially focusing on the type of layout, fuel, type of by-product, and energy vectors. The chapter provides a comprehensive and detailed discussion on the state of the art of the polygeneration system concept, fueled by fossil fuels and/or renewable energy sources, by presenting the innovative layouts designed to maximize the utilization of the input fuels. Polygeneration systems allow one to simultaneously generate energy vectors (power, heating, and cooling) as well as other valuable products (hydrogen, syngas, biodiesel, fertilizers, drinking water, etc.) by converting one or multiple energy sources. In this framework, different energy fuels can be considered as the supply source of polygeneration systems: fossil fuels (natural gas, coal, hydrogen, etc.) and renewable sources (geothermal, solar, biomass, wind, hydro). The contribution of polygeneration to the development of both centralized and decentralized systems is presented. The pros and cons of these plants are discussed in detail.
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- 2022
4. Desiccant-based AHU interacting with a CPVT collector: Simulation of energy and environmental performance
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Calise, F., Dentice d’Accadia, M., Roselli, C., Sasso, M., and Tariello, F.
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- 2014
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5. Polygeneration Systems: Design, Processes and Technologies
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Calise F., Vanoli L., Dentice D'Accadia M., Vicidomini M., Calise, F., Vanoli, L., Dentice D'Accadia, M., and Vicidomini, M.
- Abstract
The support for polygeneration lies in the possibility of integrating different technologies into a single energy system, to maximize the utilization of both fossil and renewable fuels. A system that delivers multiple forms of energy to users, maximizing the overall efficiency makes polygeneration an emerging and viable option for energy consuming industries. Polygeneration Systems: Design, Processes and Technologies provides simple and advanced calculation techniques to evaluate energy, environmental and economic performance of polygeneration systems under analysis. With specific design guidelines for each type of polygeneration system and experimental performance data, referred both to single components and overall systems, this title covers all aspects of polygeneration from design to operation, optimization and practical implementation. Giving different aspects of both fossil and non-fossil fuel based polygeneration and the wider area of polygeneration processes, this book helps readers learn general principles to specific system design and development through analysis of case studies, examples, simulation characteristics and thermodynamic and economic data.
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- 2021
6. Transient analysis and energy optimization of solar heating and cooling systems in various configurations
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Calise, F., Dentice d’Accadia, M., and Palombo, A.
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- 2010
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7. Simulation and exergy analysis of a hybrid Solid Oxide Fuel Cell (SOFC)–Gas Turbine System
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Calise, F., Dentice d’Accadia, M., Palombo, A., and Vanoli, L.
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- 2006
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8. Technical and Economic Analysis of the Reconversion of an Existing Biogas Plant to Biomethane Production: a Case Study
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Calise F., de Notaristefani di Vastogirardi G., Dentice d'Accadia M., Calise, F., de Notaristefani di Vastogirardi, G., and Dentice d'Accadia, M.
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Biomethane, biogas, biomass, digester, digestate, cogeneration ,Biomass - Abstract
The paper deals with the technical and economic analysis of a project aimed at transforming an existing plant, used for the anaerobic digestion of zoo-technical and agroforest biomass and including a CHP system of about 1 MW of electric capacity, into a facility producing bio-methane for automotive and/or stationary power applications. A comparison of different biogas upgrading technologies is performed, aimed at selecting the technology most appropriate to the size and typology of application under evaluation. Similarly, an analysis is performed to evaluate the opportunity of installing a bio-methane liquefaction facility, to simplify the management and transportation of the fuel, to be used in vehicles. The economic analysis is performed by considering the incentives presently available in Italy for bio-methane producers. Different scenarios are analyzed and discussed, and it was concluded that the conversion of the existing plant into a facility to produce bio-methane to be liquified and sold as fuel for vehicles represents at this moment a very attractive and profitable option., Proceedings of the 26th European Biomass Conference and Exhibition, 14-17 May 2018, Copenhagen, Denmark, pp. 838-846
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- 2018
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9. Micro-combined heat and power in residential and light commercial applications
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Dentice d’Accadia, M., Sasso, M., Sibilio, S., and Vanoli, L.
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- 2003
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10. Determining the optimal configuration of a heat exchanger (with a two-phase refrigerant) using exergoeconomics
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Dentice d'Accadia, M., Fichera, A., Sasso, M., and Vidiri, M.
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- 2002
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11. A novel solar trigeneration system integrating Photovoltaic/Thermal collectors and seawater desalination: dynamic simulation and economic assessment
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Calise, F, Dentice D'Accadia, M, PIACENTINO, Antonio, Calise, F, Dentice D'Accadia, M, and Piacentino, A
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Solar heating and cooling, PVT, solar desalination, MED ,Settore ING-IND/10 - Fisica Tecnica Industriale - Abstract
This paper investigates the integration of renewable energy sources and water systems, presenting a novel solar system producing simultaneously: electrical energy, thermal energy, cooling energy and domestic water. The polygeneration system under analysis includes photovoltaic/thermal solar collectors (PVT), a multi-effect distillation (MED) system for seawater desalination, a single-stage LiBr-H2O absorption chiller and additional components, such as storage tanks, auxiliary heaters and balance of plant devices. The PVT produces simultaneously electrical energy and thermal energy, at a maximum temperature of about 100 °C. The electrical energy is delivered to the grid, whereas the thermal energy may be used for different scopes. First, the thermal energy may be used for heating purposes and/or domestic hot water production. As an alternative, the solar thermal energy can be used to drive an absorption chiller, producing chilled water for space cooling. Finally, the solar energy, in combination with the thermal energy produced by an auxiliary biomass-fired heater, may be used by the MED system to convert seawater into domestic water. The system is dynamically simulated by means of a zero-dimensional transient simulation model. The simulation model also includes detailed control strategies, for the management of the solar thermal energy and for the control of the whole system. Results show an excellent energetic performance of the system under investigation whereas the economic profitability is good only in case of public funding.
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- 2013
12. Thermoeconomic analysis of a solar-assisted heat pump driven by a hybrid photovoltaic/thermal system
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Calise, F., Dentice d’Accadia, M., Figaj, R. D., and Vanoli, L.
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- 2015
13. A novel hybrid solar-geothermal ORC-based polygeneration system for energy and desalinazed water production: design and dynamic simulation
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Calise, F, Dentice d’Accadia, M., Macaluso, A., Piacentino, A., and Vanoli, Laura
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- 2015
14. Single-level optimization of a hybrid SOFC–GT power plant
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Vanoli, L., Dentice D'Accadia, M., Von, Spakovsky, M. R., and Calise, F.
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Exergy ,Overall pressure ratio ,Engineering ,Power station ,Renewable Energy, Sustainability and the Environment ,business.industry ,Radial turbine ,Centrifugal compressor ,Energy Engineering and Power Technology ,Mechanical engineering ,Thermal power station ,Turbine ,Solid oxide fuel cell ,Electrical and Electronic Engineering ,Physical and Theoretical Chemistry ,business - Abstract
The detailed synthesis/design optimization of a hybrid solid oxide fuel cell–gas turbine (SOFC–GT) power plant is presented in this paper. In the first part of the paper, the bulk-flow model used to simulate the plant is discussed. The performance of the centrifugal compressors and radial turbine is determined using maps, properly scaled in order to match the values required for mass flow rate and pressure ratio. Compact heat exchangers are simulated using Colburn and friction factor correlations. For the SOFC, the cell voltage versus current density curves (i.e. polarization curves) are generated on the basis of the Nernst potential and overvoltages. Validation of the SOFC polarization curves is accomplished with data available from Siemens Westinghouse. Both the steam–methane pre-reforming and internal reforming processes are modeled assuming the water–gas shift reaction to be equilibrium-controlled and the demethanization reactions to be kinetically controlled. Finally, a thermoeconomic model is developed by introducing capital cost functions for each plant component. The whole plant is first simulated for a fixed configuration. Then, a synthesis/design optimization of the plant is carried out using a traditional single-level approach. The results of the optimization are presented and discussed.
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- 2006
15. Full load synthesis/design optimization of a hybrid SOFC–GT power plant
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Calise, F., Dentice D'Accadia, M., Von, Spakovsky, M. R., and Vanoli, L.
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Engineering ,Power station ,business.industry ,Mechanical Engineering ,Reference design ,Centrifugal compressor ,Environmental engineering ,Building and Construction ,Pollution ,Turbine ,Industrial and Manufacturing Engineering ,Automotive engineering ,General Energy ,Heat exchanger ,Genetic algorithm ,Capital cost ,Electrical and Electronic Engineering ,business ,Electrical efficiency ,Civil and Structural Engineering - Abstract
In this paper, the optimization of a hybrid solid oxide fuel cell–gas turbine (SOFC–GT) power plant is presented. The plant layout is based on an internal reforming SOFC stack; it also consists of a radial gas turbine, centrifugal compressors and plate-fin heat exchangers. In the first part of the paper, the bulk-flow model used to simulate the plant is presented. In the second part, a thermoeconomic model is developed by introducing capital cost functions. The whole plant is first simulated for a fixed configuration of the most important synthesis/design (S/D) parameters in order to establish a reference design configuration. Next a S/D optimization of the plant is carried out using a traditional single-level approach, based on a genetic algorithm. The optimization determined a set of S/D decision variable values with a capital cost significantly lower than that of the reference design, even though the net electrical efficiency for the optimal configuration was very close to that of the initial one. Furthermore, the optimization procedure dramatically reduced the SOFC active area and the compact heat exchanger areas.
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- 2007
16. A finite-volume axial-symmetric model of a tubular solid oxide fuel
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Vanoli, L., Calise, F., Dentice D'Accadia, M., Palombo, A., Calise, Francesco, DENTICE D'ACCADIA, Massimo, Palombo, Adolfo, and L., Vanoli
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- 2006
17. Single - level strategy to the optimal synthesis/design of a hybrid SOFC-GT power plant
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Calise, F., Dentice D'Accadia, M., Vanoli, L., Von Spakovsky, M. R., DENTICE D'ACCADIA, Massimo, Vanoli, Laura, M. R., VON SPAKOVSKY, and Calise, Francesco
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- 2005
18. Thermoeconomic optimization of the condenser in a vapour compression heat pump
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Vanoli, L. and Dentice D'Accadia, M.
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- 2003
19. Exergonomic Optimisationo of a Heat Exchanger with Two Phase Refrigerant
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DENTICE D'ACCADIA, M, Fichera, Alberto, Sasso, M, and Vidiri, M.
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- 2001
20. Energetic and economic evaluation of integrated systems for municipal solid waste management
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Vanoli, L. and dentice D'Accadia, M.
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- 2000
21. Analisi Termodinamica ed Economica di Impianti di Cogenerazione di Piccola e Media Taglia nell’Industria
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Dell'Isola, Marco, Dentice D'accadia, M., Palombo, A., Vanoli, R., Dell'Isola, M., DENTICE D'ACCADIA, Massimo, Palombo, Adolfo, and Vanoli, R.
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- 1995
22. Simulation Model and Analysis of a Small Solar-Assisted Refrigeration System: Dynamic Simulation and Optimization
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Calise, F., primary, Dentice d’Accadia, M., additional, Palombo, A., additional, and Vanoli, L., additional
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- 2008
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23. Dynamic analysis and investigation of the thermal transient effects in a CSTR reactor producing biogas
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Francesco Calise, Francesco Liberato Cappiello, Luca Cimmino, Massimo Dentice d’Accadia, Maria Vicidomini, Calise, F., Cappiello, F. L., Cimmino, L., Dentice d'Accadia, M., and Vicidomini, M.
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General Energy ,Mechanical Engineering ,Building and Construction ,Electrical and Electronic Engineering ,Pollution ,Industrial and Manufacturing Engineering ,Civil and Structural Engineering - Abstract
In the field of primary energy saving, biomethane is becoming more and more attractive. The need to manage urban waste, combined with the increasing use of biofuels, makes this resource crucial for sustainability objectives. Therefore, a detailed estimation of biogas production from an anaerobic digester is an important aspect for the related research activity. This work presents a thermal transient model developed in MATLAB® that can accurately predict heat transfer and biological phenomena occurring within the digester. The model developed in this paper can conveniently consider the thermal inertia of the treated biomass during the retention time. This model is subsequently linked to the TRNSYS environment, where the produced biogas is upgraded to biomethane. For this purpose, a membrane permeation model is considered. A concentrating photovoltaic/thermal collector is coupled to the digester to meet the plant electricity and thermal energy demands. In particular, the electricity demand is mainly due to the upgrading process while the thermal energy is necessary for the anaerobic digestion process. The results of the dynamic analysis show that neglecting the thermal inertia of the digester leads to an overestimation of the total biogas production by 20%. Furthermore, the integration of renewables with the anaerobic digestion process shows remarkable results. In this case study, the Primary Energy Saving is roughly 5% and the Simple-Pay Back is less than 10 years, despite the small scale selected for solar collectors.
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- 2023
24. Thermo-economic optimization of a novel hybrid renewable trigeneration plant
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Francesco Liberato Cappiello, Maria Vicidomini, Francesco Calise, Massimo Dentice d’Accadia, Calise, F., Cappiello, F. L., Dentice d'Accadia, M., and Vicidomini, M.
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Organic Rankine cycle ,Payback period ,060102 archaeology ,Primary energy ,Renewable Energy, Sustainability and the Environment ,business.industry ,020209 energy ,Photovoltaic system ,Micro organic rankine cycle ,Pareto frontier ,Photovoltaic panel ,06 humanities and the arts ,02 engineering and technology ,TRNSYS ,Energy self-sufficiency ,Renewable energy ,Hybrid renewable trigeneration plant ,0202 electrical engineering, electronic engineering, information engineering ,Environmental science ,Capital cost ,0601 history and archaeology ,Electricity ,business ,Process engineering ,Residential building thermal energy demand - Abstract
This work presents a novel renewable trigeneration plant powered by solar, geothermal and biomass energy, producing simultaneously electricity, heat and cool. The developed system includes a 193 m2 photovoltaic field, a 159 kWh lithium-ion battery, a 30 kWe organic Rankine cycle, a 350 kWth biomass auxiliary heater, a geothermal well at 96 °C and a 80 kW single stage H2O/LiBr absorption chiller. The Organic Rankine Cycle is mainly supplied by the geothermal well, producing electricity. An additional amount of electricity is produced by the photovoltaic panels. A detailed dynamic simulation model was developed in TRNSYS environment in order to calculate both energy and economic performance of the plant. The model includes algorithms validated versus literature and experimental data. The model of the renewable trigeneration plant is used for a suitable case study, a residential building in the Campi Flegrei (Naples, South Italy) area, a well-known location for its geothermal sources and good solar availability. The proposed plant exhibits promising energy performance achieving a primary energy saving of 139%, mainly due to the obtained excess energy. From the economic point of view, the proposed plant gets a limited profitability, showing a payback period of about 19 years, mainly due to the high capital cost of the employed technologies. A thermo-economic optimization is also implemented, considering photovoltaic field and battery capacities as independent variables. The results of the optimization suggest increasing the area of the photovoltaic field and to limit the capacity of electric energy storage system, due to the high specific capital cost of the lithium-ion battery. Finally, a multi-objective optimization is also carried out, aiming at calculating the set of the optimal design variables of the proposed trigeneration plant.
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- 2021
25. Dynamic modelling and thermoeconomic analysis of micro wind turbines and building integrated photovoltaic panels
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Francesco Liberato Cappiello, Francesco Calise, Maria Vicidomini, Massimo Dentice d’Accadia, Calise, F., Cappiello, F. L., Dentice d'Accadia, M., and Vicidomini, M.
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Heat pump ,Zero-energy building ,Wind power ,060102 archaeology ,Primary energy ,Renewable Energy, Sustainability and the Environment ,business.industry ,020209 energy ,Photovoltaic system ,BIPV ,06 humanities and the arts ,02 engineering and technology ,TRNSYS ,law.invention ,Renewable energy ,law ,0202 electrical engineering, electronic engineering, information engineering ,Environmental science ,0601 history and archaeology ,Building-integrated photovoltaics ,business ,Process engineering ,Dynamic simulation ,Wind turbine - Abstract
During the past few years a significant effort has been performed in order to promote the use of renewable energy sources. However, one of the main barriers for a mature commercialization is due to the unpredictability of the renewable power production, mainly in case of wind and solar energy. Unfortunately, electric storage devices are often poorly profitable. Therefore, some more stable renewable energy systems must be designed. In this framework, this paper presents a novel hybrid renewable system consisting of Building Integrated PhotoVoltaic panels and small-scale Wind Turbines and double-stage heat pumps. This combination is very promising since it reduces the typical fluctuations of solar or wind systems, achieving a more stable profile of the overall power production. A detailed dynamic simulation model is developed in TRNSYS environment, including validated models for all the components and a suitable thermoeconomic analysis. A case study is implemented for a hotel building, where the space heating and cooling energy is supplied by an electrically driven reversible air-to-water Heat Pump, supplied by the electricity produced by Building Integrated PhotoVoltaic panels and Wind Turbines. the thermal energy recovered from the HP desuperheater is coupled with the thermal energy produced by a two-stage cascade cycle Heat Pump to produce domestic hot water. Results are presented in terms of hourly, monthly and yearly system performance data as well as by discussing the results of a detailed sensitivity analysis performed to detect the optimum configuration and weather zone of this hybrid renewable system. An analysis of the building envelope features is also performed, according to the nearly zero energy buildings target. Results showed that the combination of photovoltaic and wind technologies allows one to significantly enhance the stability of the renewable power production. Results also show that the use of heat pumps leads to a reduction of the primary energy demand for building space heating/cooling and domestic hot water by 30%. A payback period of about 5.2 years is obtained and the optimum configuration suggests adopting one 20 kW Wind Turbine for the selected case study.
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- 2020
26. A solar-driven 5th generation district heating and cooling network with ground-source heat pumps: a thermo-economic analysis
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Francesco Calise, Maria Vicidomini, Francesco Liberato Cappiello, Massimo Dentice d’Accadia, Fontina Petrakopoulou, Calise, F., Cappiello, F. L., Dentice d'Accadia, M., Petrakopoulou, F., and Vicidomini, M.
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Payback period ,Primary energy ,ground heat pump ,Renewable Energy, Sustainability and the Environment ,business.industry ,5th generation district heat and cool network ,Geography, Planning and Development ,Photovoltaic system ,Transportation ,TRNSYS ,Grid ,bidirectional low temperature network ,Energy storage ,Automotive engineering ,Power (physics) ,photovoltaic ,renewable energy district ,Environmental science ,business ,Thermal energy ,Civil and Structural Engineering - Abstract
District Heating and Cooling is considered an efficient solution to address the thermal energy demand of the building sector and reduce its environmental impact. In this paper, a 5th generation bidirectional heating/cooling network is designed and modelled. The network is coupled with water-to-water heat pumps, ground heat pumps and a photovoltaic field and is designed to meet the energy requirements of a 50-building district in the city of Leganes (Madrid). All components are modelled in TRNSYS 18. The studied network achieves a primary energy saving index of 64% and reduces the CO2 emissions by 76% relative to the current situation. The economic analysis of the system results in the relatively long payback period of 33 years, mainly due to the high costs of excavation and the installation of the heat pumps and pipes. With the current design, the photovoltaic field meets only 30% of the electricity demand of the district. However, additional energy storage could help align the power production with the actual power demand better and avoid grid balancing issues. The inclusion of other types of thermal energy consumers would also enhance the performance of the network by increasing the simultaneity between cooling and heating demands.
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- 2022
27. Optimal design of a 5th generation district heating and cooling network based on seawater heat pumps
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Francesco Calise, Francesco Liberato Cappiello, Luca Cimmino, Massimo Dentice d'Accadia, Maria Vicidomini, Calise, F., Liberato Cappiello, F., Cimmino, L., Dentice d'Accadia, M., and Vicidomini, M.
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Fuel Technology ,Nuclear Energy and Engineering ,Renewable Energy, Sustainability and the Environment ,Energy Engineering and Power Technology - Published
- 2022
28. Dynamic modelling and thermoeconomic analysis for the energy refurbishment of the Italian building sector: Case study for the 'Superbonus 110 %' funding strategy
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Francesco Calise, Francesco Liberato Cappiello, Luca Cimmino, Massimo Dentice d'Accadia, Maria Vicidomini, Calise, F., Cappiello, F. L., Cimmino, L., Dentice d'Accadia, M., and Vicidomini, M.
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Energy Engineering and Power Technology ,Industrial and Manufacturing Engineering - Published
- 2022
29. Integrated Solar Thermal Systems
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Francesco Calise, Massimo Dentice d’Accadia, Maria Vicidomini, Calise, F., Dentice D'Accadia, M., and Vicidomini, M.
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Control and Optimization ,Renewable Energy, Sustainability and the Environment ,Energy Engineering and Power Technology ,Electrical and Electronic Engineering ,Engineering (miscellaneous) ,Energy (miscellaneous) - Abstract
The renewable energy technologies attracted 70% global energy investment in 2021, but the global CO2 emission is increased by 1 [...]
- Published
- 2022
30. Concentrating photovoltaic/thermal collectors coupled with an anaerobic digestion process: Dynamic simulation and energy and economic analysis
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Maria Vicidomini, Francesco Liberato Cappiello, Francesco Calise, Massimo Dentice d’Accadia, Calise, F., Cappiello, F. L., Dentice d'Accadia, M., and Vicidomini, M.
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020209 energy ,Strategy and Management ,Organic fraction of municipal solid waste ,02 engineering and technology ,TRNSYS ,Thermal energy storage ,Industrial and Manufacturing Engineering ,Biogas ,Operating temperature ,Anaerobic digestion ,0202 electrical engineering, electronic engineering, information engineering ,CPVT collector ,Process engineering ,0505 law ,General Environmental Science ,Renewable Energy, Sustainability and the Environment ,business.industry ,05 social sciences ,Building and Construction ,Biodegradable waste ,Solar energy ,050501 criminology ,Environmental science ,business ,Thermal energy ,Biomethane - Abstract
This work presents a dynamic analysis of an anaerobic digestion plant, in which concentrating photovoltaic/thermal collectors are used to match a part of both heating and power demand of the process. The system is supplied by the organic fraction of municipal solid waste. The system also includes a thermal storage tank and an auxiliary heating system. An up-grade section is also included, to produce biomethane, suitable for injection into the natural gas pipeline network. For such hybrid solar-biomass system, a comprehensive simulation model was developed in MATLAB®, calculating the time-dependent production of biomethane as a function of the operating temperature within the digester. The model, based on differential equations and thermal balances, accounts for both thermal and biological phenomena occurring within the process, taking into consideration the geometrical and structural characteristics of the system. The consistent Anaerobic Digestion Model 1 is used to model the biological process, evaluating the biogas production as a function of a series of operating variables: the digester operating temperature, mass flowrate and temperature of the hot water entering the digester, ambient temperature, mass flowrate and composition of the organic waste in input. The model also calculates the electric consumption of the upgrading process, used to convert the biogas into biomethane. Such model was integrated into the simulation platform of the overall plant, developed in TRNSYS, evaluating the energy, environmental and economic performance of the entire system. A case study is presented, showing the dynamic performance of the system under evaluation: for such case, a primary energy saving of 24% was found, with respect to a conventional digester; around 20% of the overall thermal energy demand is met by solar energy; finally, a promising payback time of about 3 years was estimated.
- Published
- 2021
31. Combined cooling, heat, and power systems
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Francesco Liberato Cappiello, Francesco Calise, Massimo Dentice d’Accadia, Maria Vicidomini, Calise, F., Vicidomini, M., Cappiello, F. L., and Dentice D'Accadia, M.
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CCHP ,Electric power system ,Trigeneration ,Nuclear engineering ,Heat recovery ,Absorption refrigerator ,Environmental science ,Adsorption refrigerator ,Prime mover - Abstract
Combined cooling, heating, and power (CCHP), or trigeneration system, represents the common basis on which most polygeneration systems are conceived: in fact, electric energy, heating, and cooling are the main forms in which energy is used in residential, commercial, and office buildings, as well as in industrial processes.
- Published
- 2021
32. Energy and economic analysis of a small hybrid solar-geothermal trigeneration system: A dynamic approach
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Maria Vicidomini, Massimo Dentice d’Accadia, Francesco Calise, Francesco Liberato Cappiello, Calise, F., Cappiello, F. L., Dentice d'Accadia, M., and Vicidomini, M.
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Payback period ,Primary energy ,020209 energy ,02 engineering and technology ,TRNSYS ,Geothermal energy ,Industrial and Manufacturing Engineering ,Organic rankine cycle ,020401 chemical engineering ,Lithium-ion battery ,0202 electrical engineering, electronic engineering, information engineering ,Capital cost ,0204 chemical engineering ,Electrical and Electronic Engineering ,Process engineering ,Polygeneration plant dynamic performance ,Civil and Structural Engineering ,Organic Rankine cycle ,business.industry ,Mechanical Engineering ,Building and Construction ,Pollution ,Renewable energy ,General Energy ,Evacuated solar collector ,Environmental science ,Ground heat exchanger ,business ,Thermal energy - Abstract
This work presents a dynamic simulation model of a prototypal renewable plant producing electricity, heat and cool. The hybrid system consists of a 6 kWe Organic Rankine Cycle (ORC), a 17.1 kWf absorption chiller, a geothermal well, a 25 m2 evacuated solar collector field, a 200 kWt biomass heater and a 45.56 kWh electric energy lithium-ion storage system. The geothermal well at 96 °C, in combination with the solar field, supplies the thermal energy driving the ORC. This simulation model is implemented in TRNSYS environment. In order to evaluate the thermoeconomic performance of this renewable trigeneration plant, a suitable case study is analysed: a bar and soccer centre in the area of Campi Flegrei (Naples). By the simulation, interesting results in terms of energy and environmental performance are obtained. The proposed renewable power plant achieves a primary energy saving of 94.54% and a reduction of CO2 emissions equal to 97.36%. The high total capital cost of the plant significantly affects the payback period of 16.7 years. However, in the future European energy scenarios, where a full decarbonization will be achieved and the capital cost of the renewables will significantly decrease, the use of these technologies will be pivotal and significantly profitable.
- Published
- 2020
33. Smart grid energy district based on the integration of electric vehicles and combined heat and power generation
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Francesco Calise, Massimo Dentice d’Accadia, Francesco Liberato Cappiello, Maria Vicidomini, Calise, F., Cappiello, F. L., Dentice d'Accadia, M., and Vicidomini, M.
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Sustainable mobility ,Private transport ,Payback period ,Primary energy ,Renewable Energy, Sustainability and the Environment ,Computer science ,Combined heating and power system ,020209 energy ,District energy saving ,Energy Engineering and Power Technology ,Smart grid ,02 engineering and technology ,Electric vehicle ,TRNSYS ,Automotive engineering ,Fuel Technology ,Power rating ,Electricity generation ,020401 chemical engineering ,Nuclear Energy and Engineering ,0202 electrical engineering, electronic engineering, information engineering ,Grid energy storage ,0204 chemical engineering ,District heating and cooling network - Abstract
The issues dealing with climate change also caused by the private transport sector are attracting more and more attention in European Countries. This work aims to simultaneously address the issue related to the management of the energy demand of the private transport sector and building sector in the framework of the smart grid energy districts. The investigated smart grid is designed for meeting the energy demands of a district, including the energy demand for space heating and cooling, as well as the electric energy of a lot of buildings, occupied by people who only use electric vehicles. The system is equipped with a cogenerator, which is expected to operate according to the base-load operation strategy, constantly producing the rated power for whatever power demanded. Two charging strategies are analyzed and compared with the aim of detecting which strategy better exploits the power produced by the cogenerator. The performed dynamic simulations of the whole system are carried out by means of TRNSYS tool. TRNSYS allows one to use a detailed library of components which carefully model and simulate the devices included in the proposed system model. Suitable control strategies are also developed in order to improve the energy, environmental and economic performance of the smart grid. The results show that this layout allows one to considerably reduce the primary energy consumption and carbon dioxide emissions of the investigated district. As matter of fact, the proposed smart energy grid achieves a primary energy saving index of about 32%, with a payback period of about 6 years. These promising results suggest that the proposed smart energy grid may be useful for addressing the issue related with environmental impact of building sector and private transport sector.
- Published
- 2021
34. A novel paradigm for a sustainable mobility based on electric vehicles, photovoltaic panels and electric energy storage systems: Case studies for Naples and Salerno (Italy)
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Francesco Liberato Cappiello, Maria Vicidomini, Francesco Calise, Armando Cartenì, Massimo Dentice d’Accadia, Calise, Francesco, Cappiello, Francesco Liberato, Cartenì, Armando, Dentice d’Accadia, Massimo, Vicidomini, Maria, Calise, F., Cappiello, F. L., Carteni, A., Dentice d'Accadia, M., and Vicidomini, M.
- Subjects
Renewable Energy, Sustainability and the Environment ,business.industry ,020209 energy ,Electric energy storage system ,Photovoltaic system ,02 engineering and technology ,TRNSYS ,Electric vehicle ,Solar energy ,Automotive engineering ,Energy storage ,Sustainable transport ,Electric storage, Electric vehicles, Solar energy, Solar parking ,Work (electrical) ,Computer data storage ,0202 electrical engineering, electronic engineering, information engineering ,Solar parking ,Capital cost ,Environmental science ,business - Abstract
The paper presents an in-depth analysis of a novel scheme for the sustainable mobility, based on electric vehicles, photovoltaic energy and electric energy storage systems. The work aims to analyse such innovative system, putting in evidence its advantages in comparison to a conventional one, based on the grid-to-vehicle technology. The study also provides interesting guidelines for potential users and system designers. Two case studies are presented: i) the taxi fleet of the city centre of Naples and ii) the cargo vans of the city of Salerno; both towns are in Southern Italy. For each case, the hourly power consumption of the vehicles was evaluated, as a function of the daily trip length. An accurate procedure was implemented to select the sites suitable for the installation of the charging stations, including a photovoltaic field and an electric storage system. A comparison was also performed between two different electric storage technologies: lead-acid and lithium-ion battery. The case studies were analysed by means of a detailed dynamic simulation model, developed in TRNSYS. A sensitivity analysis was also performed, to evaluate how different values of the most important design and operating parameters affect the system overall performance. It was found that the results are mostly affected by solar field area, capacity of the energy storage system and investment cost. The comparison between the two selected storage technologies did not exhibit significant differences. For both the cases investigated, it was found that, during the summer, solar energy covers an important amount of the total energy demand. On the contrary, in winter the amount of energy provided by the public electric grid was high. From an economic point of view, assuming a lithium-ion battery capital cost equal to 90 €/kWh, acceptable pay-back periods (about 6 years) were obtained, for both the applications considered.
- Published
- 2019
35. Optimization and dynamic analysis of a novel polygeneration system producing heat, cool and fresh water
- Author
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Maria Vicidomini, Massimo Dentice d’Accadia, Francesco Calise, Calise, F., Dentice d'Accadia, M., and Vicidomini, M.
- Subjects
Payback period ,060102 archaeology ,Renewable Energy, Sustainability and the Environment ,Lithium bromide ,Desalination ,020209 energy ,Environmental engineering ,MED ,Biomass ,06 humanities and the arts ,02 engineering and technology ,TRNSYS ,law.invention ,Evacuated tube solar collector ,chemistry.chemical_compound ,chemistry ,law ,Heat exchanger ,0202 electrical engineering, electronic engineering, information engineering ,Absorption refrigerator ,Environmental science ,0601 history and archaeology ,Distillation ,Polygeneration - Abstract
This paper presents the integration of the evacuated tube solar collectors into a novel solar polygeneration plant. The analysis is performed by evaluating the energy and economic performance of the plant, coupled to a multi-effect distillation unit for seawater desalination, a single effect water lithium bromide absorption chiller, a biomass auxiliary heater, heat exchangers, tanks and balance-of-plant devices. Solar collectors produce heat, at about 90 °C, used for space heating and domestic hot water production, driving the absorption chiller (used for space cooling). Solar heat, combined the heat produced by the biomass auxiliary heater, also drives the multi-effect distillation unit producing desalinated water. The plant is simulated by means of a zero-dimensional dynamic model, developed in TRNSYS environment, which considers several control strategies, for the plant management. The economic analysis shows that the economic profitability significantly improves in case of feed-in tariffs, achieving a payback period of about 3.5 years. The optimization procedure performed by using the Design of Experiment method, returned a payback period of 2.4 years, by selecting the solar field area equal to 1200 m2, the tank dead band temperature to 2 °C, the summer/winter outlet set point temperature from the solar field equal to 95 °C/50 °C.
- Published
- 2019
36. A novel solar trigeneration system integrating PVT (photovoltaic/thermal collectors) and SW (seawater) desalination: Dynamic simulation and economic assessment
- Author
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Francesco Calise, Antonio Piacentino, Massimo Dentice d’Accadia, Calise, Francesco, DENTICE D'ACCADIA, Massimo, Antonio, Piacentino, Calise, F, Dentice D'Accadia, M, and Piacentino, A
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Engineering ,business.industry ,Mechanical Engineering ,Photovoltaic system ,Environmental engineering ,SHC (solar heating and cooling) PVT (photovoltaic/thermal solar collectors) Solar desalination MED (multiple-effect distillation) ,Building and Construction ,Solar energy ,Thermal energy storage ,Pollution ,Industrial and Manufacturing Engineering ,Renewable energy ,Photovoltaic thermal hybrid solar collector ,General Energy ,Solar air conditioning ,Settore ING-IND/10 - Fisica Tecnica Industriale ,Electrical and Electronic Engineering ,business ,Solar desalination ,Thermal energy ,Civil and Structural Engineering - Abstract
The paper investigates the integration of renewable energy sources and water systems, presenting a novel solar system producing simultaneously: electrical energy, thermal energy, cooling energy and domestic water. Such system is designed for small communities in European Mediterranean countries, rich in renewable sources and poor in fossil fuels and water resources. The polygeneration system under analysis includes PVT (photovoltaic/thermal solar collectors), a MED (multi-effect distillation) system for SW (seawater) desalination, a single-stage LiBr–H2O ACH (absorption chiller) and additional components, such as storage tanks, AHs (auxiliary heaters) and BOP (balance of plant) devices. The PVT produces simultaneously electrical energy and thermal energy. The electrical energy is delivered to the grid, whereas the thermal energy may be used for space heating and/or domestic HW (hot water) production. As an alternative, the solar thermal energy can be used to drive an ACH, producing CHW (chilled water) for space cooling. Finally, the solar energy, in combination with the thermal energy produced by an auxiliary biomass-fired heater, may be used by the MED system to convert SW into potable water. The system is dynamically simulated by means of a zero-dimensional transient simulation model. A thermo-economic analysis is also presented, aiming at determining the optimal values of the most important design variables.
- Published
- 2014
37. Exergetic and exergoeconomic analysis of a novel hybrid solar-geothermal polygeneration system producing energy and water
- Author
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Antonio Piacentino, Adriano Macaluso, Massimo Dentice d’Accadia, Francesco Calise, Laura Vanoli, Calise, F, Dentice d'Accadia, M, Macaluso, A, Piacentino, A, Vanoli, L, Calise, Francesco, DENTICE D'ACCADIA, Massimo, Macaluso, Adriano, Piacentino, Antonio, and Vanoli, Laura
- Subjects
Organic Rankine cycle ,Engineering ,Waste management ,Renewable Energy, Sustainability and the Environment ,business.industry ,020209 energy ,Geothermal energy ,SolarGeothermal, ORC, MED, Exergy, Exergoeconomic analysis ,Energy Engineering and Power Technology ,02 engineering and technology ,TRNSYS ,Fuel Technology ,020401 chemical engineering ,Nuclear Energy and Engineering ,Chilled water ,Solar, Geothermal, ORC, MED, Exergy, Exergoeconomic analysis ,0202 electrical engineering, electronic engineering, information engineering ,Water cooling ,Exergy efficiency ,Parabolic trough ,Settore ING-IND/10 - Fisica Tecnica Industriale ,0204 chemical engineering ,Process engineering ,business ,Geothermal gradient - Abstract
A dynamic simulation model of a novel solar–geothermal polygeneration system and the related exergetic and exergoeconomic analyses are presented in this paper. The plant is designed in order to supply electrical, thermal and cooling energy and fresh water for a small community, connected to a district heating and cooling network. The hybrid system is equipped with an Organic Rankine Cycle fueled by medium-enthalpy geothermal energy and by a Parabolic Trough Collector solar field. Geothermal brine is also used for space heating and cooling purposes. Finally, geothermal fluid supplies heat to a Multi-Effect Distillation unit, producing also desalinized water from seawater. Dynamic simulations were performed in order to design the system. The overall simulation model, implemented in TRNSYS environment, includes detailed algorithms for the simulation of system components. Detailed control strategies were included in the model in order to properly manage the system. An exergetic and exergoeconomic analysis is also implemented. The exergetic analysis allows to identify all the aspects that affect the global exergy efficiency, in order to suggest possible system enhancements. The accounting of exergoeconomic costs aims at establishing a monetary value to all material and energy flows, then providing a reasonable basis for price allocation. The analysis is applied to integral values of energy and a comparison of results between summer and winter season is performed. Results are analyzed on different time bases presenting energetic, exergetic, economic and exergoeconomic performance data. Results show that global exergy efficiency varies between 40% and 50% during the “Thermal Recovery Mode” operation and between 16% and 20% during the “Cooling mode” operation. It was also found that electricity, chilled water, cooling water and desalinated water exergoeconomic costs vary respectively in the ranges 0.1475–0.1722 €/kW h, 0.1863–0.1888 €/kW hex, 0.01612–0.01702 €/kW hex and 0.5695–0.6023 €/kW hex.
- Published
- 2016
38. Exergetic and exergoeconomic analysis of a renewable polygeneration system and viability study for small isolated communities
- Author
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M. Dentice d’Accadia, Antonio Piacentino, Francesco Calise, Calise, F, Dentice d'Accadia, M, Piacentino, A, Calise, Francesco, DENTICE D'ACCADIA, Massimo, and Piacentino, A.
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Exergy ,Engineering ,business.industry ,Mechanical Engineering ,Fossil fuel ,Environmental engineering ,Context (language use) ,Building and Construction ,Pollution ,Industrial and Manufacturing Engineering ,Renewable energy ,Exergoeconomics, Exergy analysis, Multiple effects distillation, Photovoltaic thermal collectors ,Solar Heating and Cooling, Solar desalination, Photovoltaic thermal collectors, Multiple effects distillation, Exergy analysis, Exergoeconomics ,General Energy ,Multiple-effect distillation ,Parabolic trough ,Exergy efficiency ,Settore ING-IND/10 - Fisica Tecnica Industriale ,Electrical and Electronic Engineering ,business ,Process engineering ,Solar desalination ,Civil and Structural Engineering - Abstract
A great interest has recently arisen for the sustainable supply of energy and fresh water, due to the growing demand from developing countries. Facing this demand by traditional technologies implies evident risks related with the high cost of fossil fuels and their environmental impact. Then, alternative solutions based on the use of renewable sources and innovative technologies must be considered. In this paper a renewable polygeneration system is examined, which includes a solar field based on parabolic trough photovoltaic/thermal collectors, a biomass heater, an absorption chiller and a Multiple Effect Distillation desalination unit. Plant operation under dynamic conditions has been analysed in previous papers; in this paper an exergetic and exergoeconomic analysis is carried out. The exergetic analysis is intended to identify the steps that mostly affect the overall plant exergy efficiency, so as to propose possible improvements. The exergoeconomic cost accounting is aimed at assigning a monetary value to each energy or material flow, thus providing a rational basis for price assignment. Both the exergetic and exergoeconomic analyses are applied to integral values of energy flows, comparing the results obtained in the summer and winter season. Finally, economic viability of the system in different context scenarios is discussed.
- Published
- 2015
39. Thermoeconomic optimization of a renewable polygeneration system serving a small isolated community
- Author
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Antonio Piacentino, Massimo Dentice d’Accadia, Maria Vicidomini, Francesco Calise, Calise, F, Dentice d'Accadia, M, Piacentino, A, Vicidomini, M, Calise, Francesco, DENTICE D'ACCADIA, Massimo, Antonio, Piacentino, and Vicidomini, Maria
- Subjects
Exergy ,Engineering ,Solar desalination ,Control and Optimization ,exergy analysi ,Solar heating/cooling, Photovoltaic/thermal collectors, Solar desalination ,Energy Engineering and Power Technology ,Desalination ,lcsh:Technology ,jel:Q40 ,Exergoeconomic ,jel:Q ,jel:Q43 ,jel:Q42 ,jel:Q41 ,Parabolic trough ,Settore ING-IND/10 - Fisica Tecnica Industriale ,jel:Q48 ,jel:Q47 ,Electrical and Electronic Engineering ,Engineering (miscellaneous) ,jel:Q49 ,exergoeconomics ,Waste management ,photovoltaic/thermal collectors (PVT) ,Renewable Energy, Sustainability and the Environment ,business.industry ,lcsh:T ,solar heating and cooling ,Photovoltaic system ,jel:Q0 ,multiple-effect distillation (MED) ,jel:Q4 ,Renewable energy ,solar desalination ,exergy analysis ,Base load power plant ,Exergy efficiency ,business ,Energy (miscellaneous) - Abstract
During the last years, special attention has been paid to renewable polygeneration technologies, able of simultaneously producing thermal, cooling, electrical energy and desalinated water from seawater. This paper focuses on an innovative polygeneration system driven by renewable energy sources, including the following technologies: hybrid photovoltaic/thermal collectors, concentrating parabolic trough (CPVT), a biomass heater, a single-stage absorption chiller and a multiple-effect distillation desalination system. The system is designed to cover the base load of an isolated small community. In previous papers, the dynamic simulation model about plant operation is discussed. In this paper, a detailed exergy, economic and environmental analysis of the plant is presented. In addition, the plant was optimized using different objective functions, applying the Design of Experiment (DoE) methodology which evaluates the sensitivity of the different objective functions with respect to the selected design parameters. The results show that an increase of the storage volume is generally negative, whereas increasing the solar field area involves an increase of the exergy destruction rate, but also an improvement of the CPVT exergy output provided, the final result is an increase of both the exergy efficiency and the economic profitability of the polygeneration system.
- Published
- 2015
40. A novel renewable polygeneration system for a small Mediterranean volcanic island for the combined production of energy and water: Dynamic simulation and economic assessment
- Author
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Andrea Cipollina, Massimo Dentice d’Accadia, Francesco Calise, Antonio Piacentino, Calise F., Cipollina A., Dentice d’Accadia M., Piacentino A., Calise, Francesco, Andrea, Cipollina, DENTICE D'ACCADIA, Massimo, and Antonio, Piacentino
- Subjects
Energy recovery ,PVT ,Solar desalination ,business.industry ,Mechanical Engineering ,Geothermal heating ,Geothermal energy ,Environmental engineering ,MED ,Building and Construction ,Management, Monitoring, Policy and Law ,Geothermal desalination ,Thermal energy storage ,Solar energy ,Solar heating and cooling ,Renewable energy ,General Energy ,Solar air conditioning ,Environmental science ,business - Abstract
This paper investigates the integration of solar and geothermal energy in a novel polygeneration system producing simultaneously: electricity, thermal energy, cooling energy and fresh water. The polygeneration system under analysis includes concentrating photovoltaic/thermal solar collectors (CPVT), a Geothermal Well (GW) a multi-effect distillation (MED) system for seawater desalination, a single-stage LiBr–H2O absorption chiller and additional components, such as: storage tanks, heat exchangers and balance of plant devices. The CPVT produces simultaneously electrical energy and thermal energy, at a maximum temperature of about 100 °C. The electrical energy is delivered to the grid, whereas the thermal energy can be used for different scopes. First, the thermal energy can be used for heating purposes and/or Domestic Hot Water production. As an alternative, solar thermal energy can be used to drive an absorption chiller, producing chilled water for space cooling. Finally, solar energy, in combination with the thermal energy produced by low-enthalpy (about 80 °C) geothermal wells, may be used by the MED system to convert seawater into desalinated water. Geothermal energy is also used to produce Domestic Hot Water at 45 °C. The system is dynamically simulated by means of a zero-dimensional transient simulation model. The simulation model also includes detailed control strategies, for the management of the different technologies included in such a complex system. The system is assumed to be operated in some of the several small volcanic islands in the Mediterranean Sea, assuming Pantelleria (Trapani, Italy) as main case study. Here, the availability of solar and geothermal energy is high whereas the availability of fresh water is scarce and its cost consequently high. Results show an excellent energetic performance of the system under investigation. From the economic point of view, the profitability of the system dramatically increases when user Domestic Hot Water demand is high.
- Published
- 2014
41. Single mixed refrigerant biomethane liquefaction plant integrated with solar energy: Dynamic simulation for the decarbonization of the heavy road transport sector.
- Author
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Calise F, Cappiello FL, Cimmino L, Dentice d'Accadia M, and Vicidomini M
- Subjects
- Methane chemistry, Anaerobiosis, Italy, Models, Theoretical, Biofuels, Solar Energy
- Abstract
This works proposes a dynamic thermoeconomic analysis of a liquefied biomethane production plant to meet the fuel demand of a fleet of heavy duty trucks in the south of Italy. The biomethane is obtained from the upgrading of the biogas produced by means of anaerobic digestion through a plug flow reactor fed by organic fraction of municipal solid waste. The upgrading of the biogas is realized using a three-stage membrane compression process, producing a 96 % pure biomethane. The biomethane liquefaction is realized using a single-mixed refrigerant process and compared to a Linde cycle process. The whole system is assisted by solar energy to reduce the fossil energy consumption of the process and feed-in tariffs are considered as funding policy. The models for the anaerobic digestion, the biogas upgrading, and the biomethane liquefaction are in detail developed in MatLab. The anaerobic digestion model is based on the ADM1 biological model, integrated with a suitable heat transfer model. The biogas upgrading model is based on a simplified Fick model. The liquefaction model is based on an equivalent two heat-exchangers model, taking into account the transient heat transfer. All the components are then integrated in TRNSYS to perform the dynamic simulation for one operating year of the whole system. Results from the thermoeconomic analysis are outstanding in terms of profitability, showing a payback period of less than 2 years and a Net Present Value of the system of 402 M€. The great environmental impact is also confirmed by a Primary Energy Saving of 91 % and a dramatic reduction of 86 % of the CO
2 equivalent emissions., Competing Interests: Declaration of competing interest The corresponding author confirms that all the other authors have read and approved the manuscript and no ethical issues and conflict of interest are involved. In particular the authors confirm that have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved.)- Published
- 2024
- Full Text
- View/download PDF
42. Integration of photovoltaic panels and solar collectors into a plant producing biomethane for the transport sector: Dynamic simulation and case study.
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Calise F, Cappiello FL, Cimmino L, Dentice d'Accadia M, and Vicidomini M
- Abstract
In the current energy and environmental framework, the environmental impact of the road transport sector and the urban waste management and disposal are extremely important for highly crowded cities. This work assesses the energy, economic and environmental performance of an innovative paradigm for the full decarbonisation of the road transport sector. This problem is integrated with the management of the organic fraction of municipal solid waste. In particular, the proposed technology is based on an anaerobic digestion plant coupled with a biogas upgrading unit, for the production of biomethane. In addition, photovoltaic panels and solar thermal collectors are also considered for matching electrical and thermal demands, in order to achieve a fully-renewable system. To this scope, the system also includes suitable thermal and electric storages. The economic analysis also considers specific public funding policies, currently available for this technology. This system aims to be a novel paradigm in the energy scenario of waste disposal and road transport sector refurbishment. TRNSYS software was adopted to perform an accurate dynamic simulation for a one-year operation of the system. The anaerobic digestion model is developed by the authors in MatLab and integrated in TRNSYS, for dynamic simulation purpose. Results show that the plant is almost self-sufficient due to the integration of storage systems for both the thermal and electric energy. The photovoltaic system is able to reduce by 45% the energy dependence from the grid. Energy and environmental analyses show a Primary Energy Saving of 126% and a reduction of CO
2 equivalent emissions by 112%. The economic feasibility analysis shows a promising Simple Payback period of 6 years., Competing Interests: The authors declare no conflict of interest., (©2023TheAuthors.PublishedbyElsevierLtd.)- Published
- 2023
- Full Text
- View/download PDF
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