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Computer simulation of temperature distribution during cooling of the thermally insulated room

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dc.title Computer simulation of temperature distribution during cooling of the thermally insulated room en
dc.contributor.author Charvátová, Hana
dc.contributor.author Procházka, Aleš
dc.contributor.author Zálešák, Martin
dc.relation.ispartof Energies
dc.identifier.issn 1996-1073 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2018
utb.relation.volume 11
utb.relation.issue 11
dc.type article
dc.language.iso en
dc.publisher MDPI
dc.identifier.doi 10.3390/en11113205
dc.relation.uri https://www.mdpi.com/1996-1073/11/11/3205
dc.subject thermal stability of building en
dc.subject COMSOL Multiphysics en
dc.subject computer simulation en
dc.subject 3D model en
dc.subject determination of temperature decrease for cooling the room en
dc.subject signal processing en
dc.subject smart city en
dc.description.abstract This paper is devoted to modelling of temperature distribution and its time evolution in rooms with specific thermal insulation and heat transfer for different external conditions. The simulation results should help to design the room architecture and wall materials to reduce energy losses due to heating or cooling, and to increase the inside thermal comfort. For this purpose, a methodological procedure using real data processing in the COMSOL Multiphysics modelling environment and spatial visualization of temperature evolution is proposed. This paper describes a mathematical model for simulation of the temperature evolution inside a space with thermally insulated walls under selected outside conditions. Computer simulations are then used to assess the temperature distribution inside the room and the heat flow through the room walls. Results of the simulations are used for subsequent determination of the time needed for the desired decrease of air temperature inside the tested room during its cooling due to the low ambient temperature, which is related to the thermal stability of the building, specific heat capacity, and thickness of the thermal insulation. Under the studied conditions, the time to reach the temperature drops by 20 percent in a room with windows was from 1.4 to 1.8 times lower than that in the room without windows. The proposed methodology shows the flexibility of computer modelling in the design of insulated building systems. The mesh density testing was performed by comparing the air temperature evolution in the model of the selected mesh density and the model with its maximum value enabled by the size of computer memory. The maximum temperature deviation calculated for the mesh of the presented model was 0.57%. © 2018 by the authors. en
utb.faculty Faculty of Applied Informatics
dc.identifier.uri http://hdl.handle.net/10563/1008369
utb.identifier.obdid 43878578
utb.identifier.scopus 2-s2.0-85057896772
utb.identifier.wok 000451814000343
utb.source j-scopus
dc.date.accessioned 2019-01-31T08:58:57Z
dc.date.available 2019-01-31T08:58:57Z
dc.description.sponsorship European Regional Development Fund under the project CEBIA-Tech Instrumentation [CZ.1.05/2.1.00/19.0376]; Ministry of Education, Youth and Sports of the Czech Republic within the National Sustainability Programme [LO1303 (MSMT-7778/2014)]
dc.rights Attribution 4.0 International
dc.rights.uri http://creativecommons.org/licenses/by/4.0/
dc.rights.access openAccess
utb.contributor.internalauthor Charvátová, Hana
utb.contributor.internalauthor Zálešák, Martin
utb.wos.affiliation [Charvatova, Hana; Zalesak, Martin] Tomas Bata Univ Zlin, Fac Appl Informat, Zlin 76005, Czech Republic; [Prochazka, Ales] Univ Chem & Technol Prague, Dept Comp & Control Engn, Prague 16628, Czech Republic; [Prochazka, Ales] Czech Tech Univ, Czech Inst Informat Robot & Cybernet, Prague 16636, Czech Republic
utb.scopus.affiliation Faculty of Applied Informatics, Tomas Bata University in Zlín, Zlín, 760 05, Czech Republic; Department of Computing and Control Engineering, University of Chemistry and Technology in Prague, Prague, 166 28, Czech Republic; Czech Institute of Informatics, Robotics and Cybernetics, Czech Technical University in Prague, Prague, 166 36, Czech Republic
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