14 results on '"Ćosić, B."'
Search Results
2. Integration of renewables and reverse osmosis desalination – Case study for the Jordanian energy system with a high share of wind and photovoltaics
- Author
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Novosel, T., Ćosić, B., Pukšec, T., Krajačić, G., Duić, N., Mathiesen, B.V., Lund, H., and Mustafa, M.
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- 2015
- Full Text
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3. A hybrid optimization model of biomass trigeneration system combined with pit thermal energy storage
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Dominković, D.F., Ćosić, B., Bačelić Medić, Z., and Duić, N.
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- 2015
- Full Text
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4. Acoustic response of Helmholtz dampers in the presence of hot grazing flow
- Author
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Ćosić, B., Wassmer, D., Terhaar, S., and Paschereit, C.O.
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- 2015
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5. The influence of reverse osmosis desalination in a combination with pump storage on the penetration of wind and PV energy: A case study for Jordan
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Novosel, T., Ćosić, B., Krajačić, G., Duić, N., Pukšec, T., Mohsen, M.S., Ashhab, M.S., and Ababneh, A.K.
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- 2014
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6. Retrieval of aerosol physical and chemical properties from mid-infrared extinction spectra
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Zasetsky, A.Y., Earle, M.E., Cosic, B., Schiwon, R., Grishin, I.A., McPhail, R., Pancescu, R.G., Najera, J., Khalizov, A.F., Cook, K.B., and Sloan, J.J.
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- 2007
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7. Identifying key priorities in support to the EU Macro-regional Strategies implementation – An ex-ante assessment for the Adriatic-Ionian and Alpine regions focusing on clean growth in transport and bioenergy
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Muntean, M., Van Dingenen, R., Monforti-Ferrario, F., Scarlat, N., Janssens-Maenhout, G., Hjorth, J., Bernabei, C., Skoniezki, P., Norcini Pala, A., Coppola, P., Vizcaino Martinez, P., Jacobs-Crisioni, C., Lavalle, C., Kompil, M., Armengaud, A., Trozzi, C., Contini, D., Twrdy, E., Psaraftis, H., De Gennaro, M., Paffumi, E., Martini, G., Marelli, L., Giuntoli, J., Ntziachristos, L., Antoniou, C., Meyer, M., Santa, U., Rroco, E., Motola, V., Ćosić, B., and et. al.
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Adriatic-Ionian Strategy ,Alpine Strategy ,Clean Growth ,Bioenergy - Abstract
The emissions from transport and residential sectors have significant shares in total emissions of Europe. In this study, we identified key priorities in support to the EU Macro-regional Strategies implementation based on an ex-ante assessment focusing on two EU macro-regions: Adriatic-Ionian (AIR) and Alpine (ALP). Firstly, we analysed how different sectors contribute to air pollution in the ALP and AIR regions and to predict future pollution levels under different emission scenarios such as Current Legislation (CLE), Maximum Technically Feasible Reduction (MTFR), and Climate Mitigation (CLIM) by using the TM5-FASST air quality and impact model. It was found that the residential sector is the main contributor to anthropogenic PM2.5 emissions and it will remain so also beyond 2050 under the CLE scenario while the transport sector remains the major contributor to NOx emissions until 2030, with a significant and growing contribution from shipping in the AIR region. Primary PM2.5 has almost reached its technical reduction limit but secondary PM2.5 still has a large reduction potential. MTFR measures on road transport and shipping emissions can generate an annual health benefit from PM2.5 and ozone of 750 (ALP) + 2950 (AIR) avoided premature mortalities in 2050 of which 64% from shipping emission reductions. The potential health benefits from all sectors under MTFR (ALP + AIR) amounts to 16, 800 avoided premature deaths annually in 2030 (3250 + 13550). The potential health benefits from Climate mitigation (ALP + AIR) amounts to 2200 avoided premature deaths annually in 2050 (620 + 1580), however CLIM policies due to fuel switch to biomass also cause air quality trade-off in the domestic sector leading to an estimated number of 360 extra premature deaths annually in 2050 in AIR. Secondly, the experts in the transport sector from these regions have pointed several areas of improvement. Increased intermodality, combining road, rail and maritime ship transport can have important benefits in both regions. In the ALP, moving from trucks to rail could considerably reduce the environmental impacts of transport by reducing emissions of CO2 and air pollutants and could help to solve traffic congestion problems. In the AIR, many countries use outdated technologies for on-road freight transport, causing large environmental impacts. A modal shift e.g. to electric rail or maritime shipping can thus give particularly large positive environmental benefits for this region. The potential drawbacks of a modal strengthening the role of railway and ship transport are primarily related to the increased complexity, the costs of the necessary infrastructures and the risk of increased air pollution in some port cities due to ship emissions. For traffic on roads, infrastructure development is a key element to move towards more sustainable transport. Electrification of road transport generates emissions reductions when the electricity generation is also clean and attention should be given to the charging infrastructure development. Fleet renewal of trucks and ships and use of cleaner fuels will contribute to clean growth in transport. However, fleet renewal is a costly measure and difficult to implement in poor countries ; consequently, the measures that proved to be effective in other countries may not be beneficial or even applicable in these countries. One important obstacle in implementing the provisions of EU macro-regional strategies is the disparity between countries within the macro-regions. Further, some countries in ALP and AIR are not part of EU and may present limitations in international trade and security agreements. Finally, the experts in the field highlighted the fact that bioenergy is an important opportunity for ALP and AIR regions. Because of potential environmental threats, its clean deployment is an issue to be carefully addressed through appropriate policies and regulatory acts. An example is the impact on regional air pollution of small and medium scale traditional appliances and domestic boilers. Improved efficiency and best available technologies need to be strongly supported with both market strategies and effective controls. On the other side of the supply chain, sustainable collection of feedstock has to be assured through the appropriate management of the forest stocks and accounting for the actual climate mitigation benefits, without forgetting the increasing demand of biomass from other industrial sectors in a bio-economy framework.
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- 2019
8. Zero carbon energy system of South East Europe in 2050
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Dominković, D.F., primary, Bačeković, I., additional, Ćosić, B., additional, Krajačić, G., additional, Pukšec, T., additional, Duić, N., additional, and Markovska, N., additional
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- 2016
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9. Location optimization for biomass trigeneration system with pit thermal energy storage: the case of the city of Petrinja
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Ćosić, B., Dominik Franjo Dominkovic, Ban, M., Luka Perkovic, and Ban, Marko .... [et al.]
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Trigeneration ,Location Optimization ,Biomass ,Pit Thermal Energy Storage ,Net Present Value - Abstract
The combined production of electricity, heat and cold in biomass trigeneration power plants integrated with seasonal pit thermal energy storage ensures maximum utilization of biomass resources and at the same time reduction of variable operation costs of the system. Beside optimal size of trigeneration system, location allocation problem is additional factor which need to be taken into account. In this study, optimization of the location of biomass trigeneration power plant was considered. The system combined biomass cogeneration power plant, absorbers and the seasonal pit thermal energy storage. In order to optimise location two steps optimisation has been used. In the first step, hybrid optimisation model with Genetic Algorithm and fmicon were used while in the second step model searches for minimum cost of transportation subtracted by increased costs of distribution network investment. Moreover, four case studies were done for the city of Petrinja for which economic assessment of choosing optimal and non-optimal location was performed. Case studies have shown that significant amount of yearly spending on fuel can be avoided, if the optimal location has been chosen for the power plant location. Results of analysis shows that total yearly savings for biomass with optimal location can reach up to 4.2% compared to location with highest biomass costs.
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- 2015
10. Low Carbon Energy Supply for South East Europe
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Dominik Franjo Dominkovic, Bačeković, I., Ćosić, B., Krajačić, G., Tomislav Pukšec, Duić, N., Markovska, N., and Ban, Marko .... [et al.]
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South East Europe ,Energy System ,100% Renewable Energy System ,EnergyPLAN ,Smart Energy System - Abstract
South East Europe consists of several smaller countries in terms of energy systems and thus, integrating energy systems of the whole region has significant benefits for all the countries included. However, as there are large differences between energy mixes of the countries included, careful energy planning needs to be carried out in order to satisfy energy needs of all the countries of the region. Due to the significant differences in geography and the climate of different parts of the region, many different technologies need to be introduced in order to have optimal, low-carbon energy mix. In this paper, steps toward the 100% renewable energy system (RES) for the year 2050 have been presented. Novelty in this paper, compared to the similar research already being carried out, is the sustainable use of biomass in 100% RES, as this is the only way in which biomass 1192-1 can be considered as carbon-neutral. Smart energy systems’ approach has been used in planning of 100% RES, which considers significant integration of the electrical, heating and gas sectors. Many technologies have been employed in the year 2050, but the major share is put on photovoltaics and wind energy, followed by geothermal, solar thermal, CHPs driven on biomass, hydro power and synthetic fuel technologies. Finally, it was shown that the 100% RES in the year 2050 is cheaper than the reference system, developed for the year 2012.
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- 2015
11. An Optimization Model for Combining Seasonal Pit Thermal Energy Storage and Biomass Trigeneration Energy System
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Dominik Franjo Dominkovic, Bačelić Medić, Z., Ćosić, B., Duić, N., Ban, Marko, Duić, Neven, Markovska, Nataša, Schneider, Daniel Rolph, Guzović, Zvonimir, Schlör, Holger, Ćosić, Boris, Krajačić, Goran, Perković, Luka, and Vujanović Milan
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Trigeneration ,Seasonal Storage ,District Heating ,District Cooling ,Optimization ,Biomass - Abstract
In this paper, an optimization model for incorporating seasonal heat energy storage and biomass trigeneration power plant is presented. Currently in Croatia, overall efficiency of biomass CHP or CCHP has to be above 50% on an annual basis in order to be eligible for a feed-in tariff. Consequently, biomass power plants use the excess heat production for drying biomass which is currently allowed. However, it is expected that it will not be allowed in the future due to inefficient use of heat. Thus, this paper provides a solution for managing excess heat in biomass CHP and CCHP power plants, as well as a way to shave peak energy demand. The objective of the optimization model is to maximize net present value (NPV) using hybrid optimization method. It is a demand driven model, covering real heating and cooling energy need by end-use customers. Optimization model is easy to adopt in different regions and can be used for evaluating economic feasibility of the investment in trigeneration system that covers all heating and cooling energy demand. Two case-studies were done in order to show the impact of minimum allowed overall power plant efficiency on overall economic indicators. Moreover, the financial data for the possible shift from feed-in-tariffs to fixed and variable feed-in-premiums was presented.
12. Late-Onset Sepsis Mortality among Preterm Infants: Beyond Time to First Antibiotics.
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Miselli F, Crestani S, Maugeri M, Passini E, Spaggiari V, Deonette E, Ćosić B, Rossi K, Roversi MF, Bedetti L, Lugli L, Costantini RC, and Berardi A
- Abstract
Objective: To investigate the impact of timing, in vitro activity and appropriateness of empirical antimicrobials on the outcome of late-onset sepsis among preterm very low birth weight infants that are at high risk of developing meningitis. Study design: This retrospective study included 83 LOS episodes in 73 very low birth weight infants born at ≤32 weeks' gestation with positive blood and/or cerebrospinal fluid culture or polymerase chain reaction at >72 h of age. To define the appropriateness of empirical antimicrobials we considered both their in vitro activity and their ideal delivery through the blood-brain barrier when meningitis was confirmed or not ruled out through a lumbar puncture. The primary outcome was sepsis-related mortality. The secondary outcome was the development of brain lesions. Timing, in vitro activity and appropriateness of empirical antimicrobials, were compared between fatal and non-fatal episodes. Uni- and multi-variable analyses were carried out for the primary outcome. Results: Time to antibiotics and in vitro activity of empirical antimicrobials were similar between fatal and non-fatal cases. By contrast, empirical antimicrobials were appropriate in a lower proportion of fatal episodes of late-onset sepsis (4/17, 24%) compared to non-fatal episodes (39/66, 59%). After adjusting for Gram-negative vs. Gram-positive pathogen and for other supportive measures (time to volume administration), inappropriate empirical antimicrobials remained associated with mortality (aOR, 10.3; 95% CI, 1.4-76.8, p = 0.023), while timing to first antibiotics was not (aOR 0.9; 95% CI, 0.7-1.2, p = 0.408; AUC = 0.88). The association between appropriate antimicrobials and brain sequelae was also significant ( p = 0.024). Conclusions: The risk of sepsis-related mortality and brain sequelae in preterm very low birth weight infants is significantly associated with the appropriateness (rather than the timing and the in vitro activity) of empirical antimicrobials. Until meningitis is ruled out through lumbar puncture, septic very low birth weight infants at high risk of mortality should receive empiric antimicrobials with high delivery through the blood-brain barrier.
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- 2023
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13. A kinetic study of roadside grass pyrolysis and digestate from anaerobic mono-digestion.
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Bedoić R, Bulatović VO, Čuček L, Ćosić B, Špehar A, Pukšec T, and Duić N
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- Anaerobiosis, Kinetics, Thermogravimetry, Poaceae, Pyrolysis
- Abstract
The aim of this research is to evaluate the thermogravimetric behaviour of roadside grass and its digestate obtained from mesophilic anaerobic mono-digestion by quantifying its impacts on biomass composition and properties. Thermogravimetric measurements were conducted in a laboratory furnace under nitrogen flowrate of 100 mL/min in the temperature range from 35 to 800 °C at five different heating rates of 2.5, 5, 10, 15 and 20 °C/min. Friedman and Kissinger-Akahira-Sunose differential and integral isoconversional models were applied to determine the distributions of activation energies and modified pre-exponential factors per reacted mass (degree of conversion). The investigation demonstrated that anaerobic digestion of roadside grass can be used to generate biochar-richer material (with significantly greater yield of final residues after pyrolysis) with less energy required for subsequent pyrolysis in comparison with raw roadside grass., (Copyright © 2019 Elsevier Ltd. All rights reserved.)
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- 2019
- Full Text
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14. Technical potential and geographic distribution of agricultural residues, co-products and by-products in the European Union.
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Bedoić R, Ćosić B, and Duić N
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- Animals, European Union, Fruit, Vegetables, Waste Products statistics & numerical data, Agriculture, Waste Products analysis
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Value waste chain generates a significant amount of different agricultural wastes, co-products and by-products (AWCB) that occur during three major stages of a complex path, from farm to fork. This paper presents stages where and how waste occurs along the path from the ground to the table for a period of 7 years, from 2010 to 2016 in the 28 member countries of the European Union (EU28). Considering the specific conditions of the EU28 community, four different sectors with 26 commodities and waste types that occur in those sectors were analysed: 5 commodities in the Fruit sector, 10 commodities in the Vegetable sector, 7 commodities in the Cereal sector and 4 commodities in the Animal sector. The analysis consists of three stages of waste appearance: production (harvesting, farming), processing and consumption (raw, uncooked food). Production data were taken from Eurostat, import and export data were taken from FAOSTAT. Methodology and calculations consist of relations between specific values. Those specific values for every commodity are the production data, import and export data, and consumption of raw food by the inhabitants of a country. Total consumption of raw food by inhabitant is calculated from the specific consumption per capita and population. The results of the study showed that from 2010 to 2016 in the EU28 the estimated quantity of the AWCB appeared to be around 18.4 billion tonnes, with the sector percentages as follows: Animal ~31%, Vegetable ~44%, Cereal ~22% and Fruit ~2%. In the Animal sector, the most dominant were developed countries, with high population density and high level of industrialisation. The Cereal, Fruit and Vegetable sectors have shown to generate higher AWCB quantities in the countries with more available land area and appropriate climate conditions., (Copyright © 2019 The Authors. Published by Elsevier B.V. All rights reserved.)
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- 2019
- Full Text
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