15 results on '"ROGOŽA, Artur"'
Search Results
2. LIFE CYCLE ASSESSMENT OF A CONDENSING GAS BOILER AND COMPARE WITH AN AIR SOURCE HEAT PUMP IN A RESIDENTIAL BUILDING.
- Author
-
Mustakim REZA, Abu Muhammad and ROGOŽA, Artur
- Subjects
- *
GROUND source heat pump systems , *GREENHOUSE gases , *HEAT pumps , *LIFE cycles (Biology) , *GREENHOUSE gas analysis - Abstract
This study presents a comprehensive life cycle assessment (LCA) comparing the environmental impact of a Condensing Gas Boiler (CGB) and an Air Source Heat Pump (ASHP) within the context of a residential building. As the demand for sustainable and energy-efficient heating solutions rises, evaluating the environmental performance of these technologies becomes crucial for informed decision-making. The assessment encompasses the entire life cycle of both heating systems, including raw materials, production, transportation, installation, operation, and with deep focus on end-of-life disposal through recycling, landfill, and incineration. The environmental indicators considered in the analysis include greenhouse gas emissions, energy consumption, and other relevant impact categories. This study has been conducted using SimaPro 9.4.0 program database with IMPACT 2002+ method and findings from this research aim to guide homeowners, policymakers, and industry stakeholders in making informed decisions regarding the adoption of heating technologies in residential buildings. By shedding light on the environmental implications of CGBs and ASHPs, this LCA contributes valuable insights toward the transition to sustainable and energy-efficient residential heating solutions and destruction methodologies for better environmental gain. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
3. The Conceptual Model of the BIM4NZEB-DS System for Selecting Technological Variants of Rational Passive Energy Efficiency Measures for a Sustainable Building.
- Author
-
Kiaulakis, Arvydas, Vilutienė, Tatjana, Šarka, Vaidotas, Šarkienė, Edita, and Rogoža, Artur
- Subjects
TECHNOLOGICAL innovations ,HIGHER education ,EMOTIONAL conditioning ,SUSTAINABILITY ,ENERGY consumption - Abstract
Implementing sustainable solutions in building design is one of the significant elements in achieving the transition to sustainability. The diversity of structural elements, construction materials, and the various preferences of interested parties complicate the decision-making process. Building Information Modeling (BIM) provides a wide range of available technological solutions and methods for automated decision support and can make decision-making more efficient. This study presents the conceptual model for BIM4NZEB-DS system for the automated selection of rational variants of passive energy efficiency measures. The algorithm of this system will integrate the solutions for data transfer from the BIM model and multi-criteria methods for the analysis of variants. The assessment of variants is based on economic and environmental criteria. The purpose of the system is to increase the reliability of the assessment, optimise the technological and human resources required, and minimise the time of decision-making. The developed system will be validated using the BIM model of real-case building. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
4. A Review of the Life Cycle Analysis Results for Different Energy Conversion Technologies.
- Author
-
Motuzienė, Violeta, Čiuprinskas, Kęstutis, Rogoža, Artur, and Lapinskienė, Vilūnė
- Subjects
ENERGY conversion ,RENEWABLE energy sources ,WASTE products as fuel ,COGENERATION of electric power & heat ,ENERGY consumption ,CARBON dioxide mitigation - Abstract
Technologies that use renewable energy sources (RES) are crucial to achieving decarbonization goals, but a significant number of studies show their relatively high environmental impact during the production phase. Therefore, technologies need to be compared in terms of their life-cycle environmental impact. The life cycle analysis (LCA) methodology is well known and widely employed. However, problems related to the methodological choices prevent taking full advantage of the LCA, as the results of numerous studies are often incomparable. The presented review aims to critically compare the impact of different energy generation technologies—RES (as well as non-RES) energy generators and co-generators. The numeric results are structured and analyzed in terms of the global warming potential (GWP) and non-RES primary energy consumption. The results show that RES technologies are superior compared to conventional fossil-fuel-based systems in most cases, and the high impact during the production and installation phases is compensated in the operational phase. The high variations in GWP from similar technologies result from different methodological choices, but they also show that the wrong choice of the technology in a certain location might cause serious environmental drawbacks when the impact of the RES technology exceeds the impact of fossil fuel-based technologies. Cogeneration technologies using waste as a fuel may even have a negative GWP impact, thus showing even higher potential for decarbonization than RES technologies. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
5. Evaluation of renewable energy sources installation in refurbished buildings in terms of life cycle: case study
- Author
-
Rogoža, Artur, Šiupšinskas, Giedrius, Bielskus, Juozas, and Misevičiūtė, Violeta
- Subjects
solar collectors ,heat pumps ,life cycle analysis ,modernizations of the buildings ,renewable energy sources ,district heating - Abstract
Renewable energy technologies are increasingly integrated into the modernization of multi-apartment buildings, however their benefits are rarely assessed from a complex environmental, energy and economic point of view. The article presents the results of the modernization of a particular apartment building in terms of the production and consumption of energy in a building, from the viewpoint of the life cycle. The benefits of the building’s energy modernization were assessed by introducing active (heat pumps and solar collectors for hot domestic water production) and passive modernization measures. The results show that the integration of heat pumps when electricity is produced from non-renewable energy sources according to the analyzed categories of life cycle analysis is not eco-friendly. Article in Lithuanian. Atsinaujinančios energijos šaltinių diegimo modernizuojamuose pastatuose įvertinimas gyvavimo ciklo požiūriu: atvejo analizė Santrauka.Modernizuojant daugiabučius pastatus, vis dažniau integruojamos atsinaujinančios energijos technologijos, tačiau jų nauda retai vertinama kompleksiniu: aplinkosauginiu, energiniu ir ekonominiu– požiūriais. Straipsnyje pateikiami konkretaus daugiabučio modernizavimo rezultatai, vertinant gaminamą ir suvartotą energiją pastate gyvavimo ciklo požiūriu. Įvertinta pastato energinio modernizavimo nauda diegiant aktyvias (šilumos siurbliai ir saulės kolektoriai karštam vandeniui ruošti) ir pasyvias modernizavimo priemones. Rezultatai rodo, kad šilumos siurblių integravimas, kai elektra nėra gaminama iš atsinaujinančių energijos šaltinių, pagal nagrinėtas gyvavimo ciklo analizės įtakos kategorijas ekologiniu požiūriu nepasiteisina. Reikšminiai žodžiai:atsinaujinantys energijos ištekliai (šaltiniai), centralizuotas šilumos tiekimas, gyvavimo ciklo analizė, pastatų modernizavimas, saulės kolektoriai, šilumos siurbliai.
- Published
- 2019
6. ŠILUMOS SIURBLIŲ TAIKYMO CENTRALIZUOTAI APRŪPINANT DAUGIABUČIUS PASTATUS ŠILUMA TECHNOLOGINIŲ GALIMYBIŲ TYRIMAS.
- Author
-
ROGOŽA, Artur and MISEVIČIŪTĖ, Violeta
- Subjects
- *
HEATING from central stations , *HOT water heating , *HEAT pumps , *RENEWABLE energy sources , *HEATING , *INDUSTRIALIZED building , *THERMAL insulation - Abstract
The main users of district heating (DH) systems are multi-apartment buildings – 53% of these buildings in Lithuania are supplied with heat from DH systems. Heating systems in buildings are the largest final consumer of energy, accounting for almost half of total energy consumption in many European countries. One of the measures planned for the Lithuanian energy policy in the heat sector of renewable energy sources (RES) until 2030 is the installation of heat pumps (HP) in the DH networks. The purpose of the study is to evaluate the technological possibilities of integrating HP into existing buildings to evaluate the low temperature heat supply. To evaluate the potential temperature lowering of the building heating system, a graph of the lowest possible building heating system temperatures is set, according to which the heat pump for the heating substation is selected, which would raise the temperature of the heat carrier supplied from DH networks to the required temperature for the heating and hot water systems of the building. Applying thermodynamic analysis, a mathematical model is developed that evaluates the ability of the HP to raise the temperature of the supplied heat carrier at the heat substation and determines the energy efficiency of such a solution. During the simulation, two alternatives of constant (regardless of outdoor air temperature) heat carrier temperatures supplied from DH networks were considered: 60 °C (alternative A) and 55 °C (alternative B). To adapt the most appropriate option for the integration of HP, it would be appropriate to combine both alternatives, i. y. to supply 60 °C from the DH network in the cold period of the year and 55 °C in the warm period of the year. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
7. Investigation of alternative ventilation systems and indoor climate in living house
- Author
-
Petrašiūnas, Rokas, Rogoža, Artur, and Misevičiūtė, Violeta
- Subjects
economic evaluation ,centralized ventilation system ,regeneration ,heat recovery ,indoor climate ,decentralized ventilation system ,life cycle analysis (LCA) - Abstract
The purpose of the study was to determine which ventilation system centralized or decentralized in viewpoint of economic, energy and comfort is more advantageous in an individual residential house. The relevance of the work is related to the increasing energy efficiency requirements for newly built buildings and the resulting problems of the sick building syndrome due to insufficient ventilation of the rooms. The installation and operation costs of systems were identified. The Life Cycle Analysis (LCA) method was applied to estimate the amount of pollutants and primary energy consumed throughout the lifetime of ventilation systems. Measurements of indoor climate parameters were made; the results compared with the hygiene norms valid in Lithuania. The results of the analysis showed that the decentralized ventilation system is the most advantageous for economic and environmental impacts, but centralized ventilation system ensuring a better indoor climate. Article in Lithuanian. Alternatyvių vėdinimo sistemų ir mikroklimato tyrimai gyvenamajame name Santrauka.Tyrimo tikslas buvo nustatyti, kokia vėdinimo sistema– centralizuota ar decentralizuota– ekonominiu, energiniu bei komforto požiūriu yra pranašesnė individualiame gyvenamajame name. Darbo aktualumas susijęs su didėjančiais energinio efektyvumo reikalavimais naujai statomiems pastatams ir iš to kylančiomis ligoto pastato sindromo problemomis dėl nepakankamo patalpų vėdinimo. Darbe buvo nustatyti sistemų įrengimo bei eksploatavimo kaštai, pritaikytas gyvavimo ciklo analizės (GCA) metodas, kuriuo įvertinti susidarančių teršalų bei suvartotos pirminės energijos kiekiai per visą vėdinimo sistemų gyvavimo laiką, atlikti patalpų mikroklimato rodiklių matavimai, o gauti rezultatai palyginti su Lietuvoje galiojančiomis higienos normomis. Išanalizavus rezultatus nustatyta, kad ekonominiu ir poveikio aplinkai požiūriais pranašesnė yra decentralizuota vėdinimo sistema, tačiau geresnį patalpų mikroklimatą užtikrina centralizuota vėdinimo sistema. Reikšminiai žodžiai:centralizuota vėdinimo sistema, decentralizuota vėdinimo sistema, ekonominis vertinimas, gyvavimo ciklo analizė (GCA), regeneracija, šilumogrąža, mikroklimatas.
- Published
- 2018
8. Analysis of the monitoring results of modernized residential multi-storey buildings / Modernizuotų daugiabučių namų monitoringo rezultatų analizė
- Author
-
Rogoža, Artur, Šiupšinskas, Giedrius, Valančius, Kęstutis, and Mikučionienė, Rūta
- Subjects
monitoring ,Technology ,Science ,actual consumption ,buildings ,modernization ,energy - Abstract
The main objective of the monitoring analysed in the article is to evaluate and make recommendations of the actual energy and technical efficiency of the implemented measures of the modernization of multi-apartment buildings. More detailed assessment of energy efficiency measures implemented by modernized buildings, measurements of indoor microclimate and their evaluation is made. Based on the actual heat consumption collected before and after the modernization of buildings, the thermal balance of the building was constructed under the normative conditions. The basics of the methodology, conclusions and recommendations are also presented. Santrauka Straipsnyje analizuojamo monitoringo pagrindinis tikslas – įgyvendinant daugiabučio namo atnaujinimo (modernizavimo) projektą įvertinti taikytų priemonių faktinį energinį ir techninį efektyvumą ir pateikti rekomendacijas dėl priemonių naudingumo atnaujinant (modernizuojant) daugiabučius namus. Detaliau įvertinami modernizuotiems pastatams taikant energijos taupymo priemones pasiekti energiniai rezultatai, patalpų vidaus mikroklimato matavimai ir jų rodikliai. Remiantis faktinėmis šilumos sąnaudomis prieš pastatų modernizavimą ir po jo buvo sudarytas pastato šilumos balansas esant norminėms sąlygoms. Taip pat pateikti metodikos pagrindai, išvados ir rekomendacijos. Reikšminiai žodžiai: pastatai; modernizavimas; energija; monitoringas; faktinis vartojimas.
- Published
- 2017
9. Life cycle multi-criteria analysis of alternative energy supply systems for a residential building
- Author
-
Rogoža, Artur
- Subjects
solar collectors ,heat pump ,multi–criteria analysis ,residential building ,life cycle analysis ,solar panels ,district heating - Abstract
The article analyses energy supply alternatives for a partially renovated residential building. In addition to the existing district heating (base case) alternative systems, gas boilers, heat pumps (air-waterandground-water), solar collectors, solar cells, and combinations of these systems have been examined. Actual heat consumption of the building and electricity demand determined by the statistical method are used for simulating the systems. The process of simulation is performed using EnergyPro software. In order to select an optimal energy supply option, the life cycle analysis of all systems has been carried out throughout a life span of the building, and the estimated results of energy, environmental and economic evaluation have been converted into non-dimensional variables (3E) using multi–criteria analysis. Article in Lithuanian. Alternatyviųjų daugiabučio namo aprūpinimo energija sistemų gyvavimo ciklo daugiakriterė analizė Santrauka.Nagrinėjamos iš dalies renovuoto daugiabučio gyvenamojo pastato aprūpinimo energija alternatyvos. Be esamo centralizuotojo šilumos tiekimo (bazinis variantas), tiriama alternatyviosios sistemos: dujiniai katilai, šilumos siurbliai (oras– vanduo ir gruntas–vanduo), saulės kolektoriai, saulės elementai ir šių sistemų deriniai. Modeliuojant sistemas, naudojami faktiniai pastato šilumos suvartojimo ir statistiniu būdu nustatyti elektros poreikių duomenys. Sistemų modeliavimas atliekamas EnergyPro programa. Siekiant nustatyti optimalų aprūpinimo energija variantą, analizuojamas visų sistemų gyvavimo ciklas per visą pastato gyvavimo trukmę, o gauti energinio, ekologinio ir ekonominio vertinimų rezultatai daugiakriterės analizės būdu perskaičiuojami į nedimensinius rodiklius (3E). Reikšminiai žodžiai: daugiabutis namas, centralizuotasis šilumos tiekimas, saulės kolektoriai, saulės elementai, šilumos siurblys, gyvavimo ciklo analizė, daugiakriterė analizė.
- Published
- 2013
10. Analysis of the payback of primary energy and CO2 emissions in relation to the increase of thermal resistance of a building.
- Author
-
Valančius, Kęstutis, Rogoža, Artur, and Vilutienė, Tatjana
- Subjects
- *
CONSTRUCTION , *THERMAL insulation , *CARBON dioxide , *ENERGY consumption , *ECOLOGY - Abstract
Highlights • Proposed approach combines environmental and energy LCA. • The efficiency of external insulation analysed in terms of 2E efficiency criteria. • Methodological approach applied for building energy renovation project. • Several energy class renovation scenarios are examined. • Specific life cycle indicators and paybacks are calculated for all scenarios. Abstract The authors of the paper present a methodological approach for combining environmental and energy life cycle assessments of building energy refurbishments towards a nearly zero-energy building. The authors applied the proposed approach to a case study and examined several energy class renovation scenarios. Specific life cycle indicators and paybacks were calculated for all scenarios. The paper analyses the efficiency of insulation of the external envelope of a building (the external wall, floor on the ground and the roof) in terms of 2E efficiency criteria (energy – non-renewable primary energy consumption and ecology – CO 2 gas emissions), focusing on different thermal insulation materials. The life cycle assessment method was applied to analyse the environmental performance of building envelope insulation. Primary energy consumption and CO 2 gas emissions when insulating the envelopes to change their energy efficiency class from F to B and from B to A++ were determined. The paper also presents a graphical interpretation of primary energy savings and CO 2 gas emissions over a period of 60 years as well as identifies thermal insulation materials that are the most reasonable for building insulation in terms of energy and ecology. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
11. The optimisation of energy systems by using 3E factor: the case studies
- Author
-
Rogoža, Artur, Čiuprinskas, Kęstutis, and Šiupšinskas, Giedrius
- Subjects
Sustaineble buildings ,Tausojanti plėtra ,Sustainable development ,Pastatai--Ekologija ,Tausojantys pastatai ,Buildings--Ecology - Abstract
Energy systems should be analysed according to principles of sustainable development. The optimality of technical systems usually is evaluated by only technical and economical criteria. But the estimation of these criteria is not comprehensive enough in the case when system life cycle is much longer than the period of reliable economical prognosis. In this paper the criteria set of energy system evaluation and optimisation was expanded by energy and ecological standpoints and a new multiple criteria indicator (3E factor – Energy, Economy, Ecology) was introduced. The application of this factor was demonstrated by two examples: optimisation of the district heating network pipeline replacement periodicity and optimisation of the thermal insulation of the single family house. Energetinės sistemos turėtų būti tiriamos atsižvelgiant į tvariosios plėtros principus. Techninės sistemos optimalumas dažniausiai vertinamas tik techniniais ir ekonominiais kriterijais. Tačiau tokio vertinimo nepakanka, kai sistemos gyvavimo ciklas yra daug ilgesnis už patikimų ekonominių prognozių laikotarpį. Šiame straipsnyje kriterijų rinkinys, reikalingas energetinei sistemai įvertinti ir optimizuoti, buvo papildytas energiniais bei ekologiniais rodikliais ir panaudotas naujas daugiakriteris rodiklis (3E kriterijus – energinis, ekonominis, ekologinis). Šio rodiklio taikymas pateikiamas dviem pavyzdžiais: šilumos tiekimo tinklo vamzdynų atnaujinimo optimizavimu ir vienbučio gyvenamojo namo šilumos izoliacijos optimizavimu.
- Published
- 2006
12. A SUSTAINABLE ANALYSIS OF A DETACHED HOUSE HEATING SYSTEM THROUGHOUT ITS LIFE CYCLE. A CASE STUDY.
- Author
-
Sasnauskaitė, Violeta, Užšilaitytė, Lina, and Rogoža, Artur
- Subjects
ARCHITECTURE & energy conservation ,ENERGY conservation in buildings ,SUSTAINABLE development ,RADIANT floor heating ,ENERGY consumption ,DECISION making ,EMISSIONS (Air pollution) - Abstract
Copyright of International Journal of Strategic Property Management is the property of Vilnius Gediminas Technical University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2007
- Full Text
- View/download PDF
13. Integrated assessment of energy supply system of an energy-efficient house.
- Author
-
Džiugaitė-Tumėnienė, Rasa, Motuzienė, Violeta, Šiupšinskas, Giedrius, Čiuprinskas, Kęstutis, and Rogoža, Artur
- Subjects
- *
POWER resources , *RESIDENTIAL energy conservation , *ENERGY consumption of buildings , *BUILDING environmental engineering equipment , *RENEWABLE energy sources - Abstract
The paper presents an integrated assessment model of an energy supply system for an energy-efficient building (ESSINTEGRA). This assessment comprises a comprehensive analysis of the building energy demand and energy supply systems as well as determining a rational solution on the basis of the selected assessment criteria: energy efficiency, environmental impact, economic, comfort and technical functionality. ESSINTEGRA is applied for a case study of a single family house. Six different alternatives of the house envelope parameters and 15 combinations of the technological solutions of the building energy supply systems (BESS) are explored as design options. Applying the model has allowed to determine the rational solution for the energy-efficient single family houses in Northern European climate (zone 5). When the combination of the wood boiler with a solar collector system is used, the primary energy demand of 10.1 kWh/m 2 , CO 2 gas emissions of 0.24 kgCO 2 /m 2 and the renewable energy fraction of 97.4 % can be obtained. When the decision making method is applied, the reliability of the rational solution amounts to 99.5%. The sensitivity analysis has shown that the variation of the criteria significances has no influence on the reliability of the rational solution. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
14. Assessment of building service systems process integration applying exergy critrerion
- Author
-
Biekša, Darius, Martinaitis, Vytautas, Rogoža, Artur, Juodis, Egidijus Saulius, Sirvydas, Povilas Algimantas, Skrinska, Alfonsas Kazys, Čėsna, Benediktas, Kačianauskas, Rimantas, Kveselis, Vaclovas, Miliauskas, Gintautas, and Vilnius Gediminas Technical University
- Subjects
Thermodynamical assessment ,Exergy analysis ,Systems integration ,Pastato inžinerinės sistemos ,Building service systems ,Termodinaminis vertinimas ,Power and Thermal Engineering ,Sistemų integracija ,Ekserginė analizė - Abstract
A significant part of world energy consumption balance, approx. 40 %, is utilized in buildings. Maintenance of comfortable conditions and improvement in the living, working or recreational environment is a desire for every human. Therefore it is no surprise that there has been a sudden increase in scientific research in the field of building’ energy efficiency. Despite the relevance of the problem there is no sustaining methodology for evaluating building’ energy efficiency by applying sustainable energy development approach. The majority of the researchers don’t assess different potential of the analyzed energy flows nor systems operational regimes. The aim of the work is to evaluate the possibilities for applying exergetical process and system integration method in the design, operation and normalization of the office building service systems: to prepare design solutions that increase buildings’ service systems’ thermodynamical efficiency and covers individual processes and elements’ chain systems. The thesis is divided into the introduction and three main chapters, conclusions, a list of literature and a list of publications. In this work the building service systems’ analysis incorporates three interconnected methods: system analysis, life cycle and thermodynamical analysis. Application of system analyses enables an estimation of service system’s elements (subsystems) and their interconnections. Life cycle analysis allows estimation of total exergy demand through the... [to full text] Ženklią dalį pasauliniame galutinės energijos vartojimo balanse, apie 40 %, užima energijos dalis, suvartojama pastatuose. Komfortinių sąlygų palaikymas ir gerinimas gyvenamojoje, darbo ar poilsio aplinkoje yra natūralus kiekvieno žmogaus poreikis. Pastaruoju metu stebimas ryškus mokslinių tyrimų suaktyvėjimas didininat energijos vartojimo pastatuose efektyvumą. Nepaisant aktualios problematikos, nuoseklios, darnia energetikos plėtra grindžiamos pastatų energetinio efektyvumo vertinimo metodikos iki šiol nėra. Daugelio tyrėjų naudojami metodai neįvertina skirtingų analizuojamų energijos srautų kokybinių potencialų, nekreipiamas dėmesys į skirtingus sistemų veikimo režimus jų eksploatavimo metu. Darbo tikslas – įvertinti galimybes taikyti procesų ir sistemų integracijos metodą viešųjų pastatų mikroklimato sistemų projektavime, naudojime bei normavime, sukuriant individualius procesus ir visą įrenginių sistemą aprėpiantį priemonių kompleksą, kurio dėka būtų padidintas energijos vartojimo pastate termodinaminis naudingumas. Disertaciją sudaro įvadas, 3 skyriai, pagrindinės išvados, naudotos literatūros sąrašas. Disertaciniame darbe pastato inžinerinių sistemų tyrimui panaudoti trys metodai: sisteminė analizė, gyvavimo ciklo analizė ir termodinaminė (ekserginė) analizė. Sisteminės analizės naudojimas leidžia apibrėžti pastato inžinerinių sistemų elementus bei jų tarpusavio ryšius. Pasitelkus gyvavimo ciklo analizę nustatomi eksergijos poreikiai per visą sistemos gyvavimo... [toliau žr. visą tekstą]
- Published
- 2008
15. Influence of active heat capacity on microclimate and energy demand of a building
- Author
-
Valančius, Kęstutis, Čėsna, Benediktas, Vaitiekūnas, Petras, Vegytė, Nijolė, Martinaitis, Vytautas, Šlančiauskas, Anupras, Rogoža, Artur, Stankevičius, Vytautas, and Vilnius Gediminas Technical University
- Subjects
Aktyvioji šiluminė talpa ,Nestacionarūs šilumos mainai ,Unsteady heat transfer ,Building ,Pastatas ,Power and Thermal Engineering ,Active heat capacity - Abstract
The main aim of the work is to investigate unsteady indoor thermal factors’ influence on premises microclimate, energy demand and installed heat power. Tasks of the work: 1. To investigate evaluation methods of thermal characteristics of a building which have influence on unsteady heat transfer, and to point out the main and determining factors. 2. To investigate dynamic thermal characteristics of a building in an experimental way. 3. To describe unsteady heat transfer processes in buildings on the basis of energy conservation law for a control volume with the help of active heat capacity conception and to adapt calculation methods for practical use. 4. To estimate the influence of active heat capacity on premises microclimate, design heat power and energy use.
- Published
- 2007
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.