Experimental Analysis of the Function of a Window with a Phase Change Heat Accumulator
The article presents the results of long-term field tests and their mathematical analysis regarding the impacts of innovative phase change materials on the energy efficiency of composite windows with various glazing parameters. Research was conducted on six glazing combinations throughout the heatin...
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-08-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/16/3647 |
| _version_ | 1797557500827926528 |
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| author | Lech Lichołai Michał Musiał |
| author_facet | Lech Lichołai Michał Musiał |
| author_sort | Lech Lichołai |
| collection | DOAJ |
| description | The article presents the results of long-term field tests and their mathematical analysis regarding the impacts of innovative phase change materials on the energy efficiency of composite windows with various glazing parameters. Research was conducted on six glazing combinations throughout the heating season in a temperate climate in Rzeszów (Poland). The empirical results obtained during the spring months showed an improvement in the monthly heat balance for windows with phase change materials compared to the reference window by as much as 34.09%. In addition, the empirical results allowed the development and verification of a mathematical model describing the transport and distribution of heat within a window with a phase change heat accumulator. The model was made using equations of non-stationary heat flow and an explicit finite difference method using calorimetric thermograms describing the phase change eutectic mixture used in the research. Carrying out the Snedecor–Fischer test proved the statistical adequacy of the developed model in 4 out of 6 tested combinations of glazing units. Good matching of the empirical and theoretical quantities was also confirmed using the quasi-Newton method. The article is a solution to the problem of the effective use of solar energy within transparent building partitions, while presenting a useful mathematical tool that determines potential thermal gains in various climatic conditions. |
| first_indexed | 2024-03-10T17:17:47Z |
| format | Article |
| id | doaj.art-fd60ca681bd7440aa7f86ab23fb331f7 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T17:17:47Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-fd60ca681bd7440aa7f86ab23fb331f72023-11-20T10:26:59ZengMDPI AGMaterials1996-19442020-08-011316364710.3390/ma13163647Experimental Analysis of the Function of a Window with a Phase Change Heat AccumulatorLech Lichołai0Michał Musiał1The Faculty of Civil and Environmental Engineering and Architecture, Rzeszow University of Technology, 35-084 Rzeszów, PolandThe Faculty of Civil and Environmental Engineering and Architecture, Rzeszow University of Technology, 35-084 Rzeszów, PolandThe article presents the results of long-term field tests and their mathematical analysis regarding the impacts of innovative phase change materials on the energy efficiency of composite windows with various glazing parameters. Research was conducted on six glazing combinations throughout the heating season in a temperate climate in Rzeszów (Poland). The empirical results obtained during the spring months showed an improvement in the monthly heat balance for windows with phase change materials compared to the reference window by as much as 34.09%. In addition, the empirical results allowed the development and verification of a mathematical model describing the transport and distribution of heat within a window with a phase change heat accumulator. The model was made using equations of non-stationary heat flow and an explicit finite difference method using calorimetric thermograms describing the phase change eutectic mixture used in the research. Carrying out the Snedecor–Fischer test proved the statistical adequacy of the developed model in 4 out of 6 tested combinations of glazing units. Good matching of the empirical and theoretical quantities was also confirmed using the quasi-Newton method. The article is a solution to the problem of the effective use of solar energy within transparent building partitions, while presenting a useful mathematical tool that determines potential thermal gains in various climatic conditions.https://www.mdpi.com/1996-1944/13/16/3647innovative phase change materialpassive solar systemmathematical model of blurred phase changeheat-storing windows |
| spellingShingle | Lech Lichołai Michał Musiał Experimental Analysis of the Function of a Window with a Phase Change Heat Accumulator Materials innovative phase change material passive solar system mathematical model of blurred phase change heat-storing windows |
| title | Experimental Analysis of the Function of a Window with a Phase Change Heat Accumulator |
| title_full | Experimental Analysis of the Function of a Window with a Phase Change Heat Accumulator |
| title_fullStr | Experimental Analysis of the Function of a Window with a Phase Change Heat Accumulator |
| title_full_unstemmed | Experimental Analysis of the Function of a Window with a Phase Change Heat Accumulator |
| title_short | Experimental Analysis of the Function of a Window with a Phase Change Heat Accumulator |
| title_sort | experimental analysis of the function of a window with a phase change heat accumulator |
| topic | innovative phase change material passive solar system mathematical model of blurred phase change heat-storing windows |
| url | https://www.mdpi.com/1996-1944/13/16/3647 |
| work_keys_str_mv | AT lechlichołai experimentalanalysisofthefunctionofawindowwithaphasechangeheataccumulator AT michałmusiał experimentalanalysisofthefunctionofawindowwithaphasechangeheataccumulator |