Effect of perforations and slits on hygrothermal properties of EPS
This paper presents the results of research on the influence of perforation and slits on the water vapour diffusion of expanded polystyrene (EPS) and the influence of the size and number of perforations and slits on the thermal conductivity of EPS board. The research was conducted using numerical mo...
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| Format: | Article |
| Language: | English |
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Croatian Association of Civil Engineers
2022-06-01
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| Series: | Građevinar |
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| Online Access: | https://doi.org/10.14256/JCE.3483.2022 |
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| _version_ | 1850034062201192448 |
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| author | Mergim Gaši Bojan Milovanović Ivana Banjad Pečur Marina Bagarić |
| author_facet | Mergim Gaši Bojan Milovanović Ivana Banjad Pečur Marina Bagarić |
| author_sort | Mergim Gaši |
| collection | DOAJ |
| description | This paper presents the results of research on the influence of perforation and slits on the water vapour diffusion of expanded polystyrene (EPS) and the influence of the size and number of perforations and slits on the thermal conductivity of EPS board. The research was conducted using numerical models (control volume methods) with varying sample thickness, slit spacing, and depth and diameter of perforations. The numerical model showed that it is possible to obtain up to 42.18 % better water vapour diffusion compared to EPS board without perforation with an increase in thermal conductivity of 9.02 %. Also, the results of this study show that the effective vapour diffusion coefficient depends on the thickness of the perforated EPS samples. |
| format | Article |
| id | doaj-art-b9d75630efc1480aae94bdd0f79a06e5 |
| institution | DOAJ |
| issn | 0350-2465 1333-9095 |
| language | English |
| publishDate | 2022-06-01 |
| publisher | Croatian Association of Civil Engineers |
| record_format | Article |
| series | Građevinar |
| spelling | doaj-art-b9d75630efc1480aae94bdd0f79a06e52025-08-20T02:57:57ZengCroatian Association of Civil EngineersGrađevinar0350-24651333-90952022-06-017405.36938110.14256/JCE.3483.2022Effect of perforations and slits on hygrothermal properties of EPSMergim GašiBojan MilovanovićIvana Banjad PečurMarina BagarićThis paper presents the results of research on the influence of perforation and slits on the water vapour diffusion of expanded polystyrene (EPS) and the influence of the size and number of perforations and slits on the thermal conductivity of EPS board. The research was conducted using numerical models (control volume methods) with varying sample thickness, slit spacing, and depth and diameter of perforations. The numerical model showed that it is possible to obtain up to 42.18 % better water vapour diffusion compared to EPS board without perforation with an increase in thermal conductivity of 9.02 %. Also, the results of this study show that the effective vapour diffusion coefficient depends on the thickness of the perforated EPS samples.https://doi.org/10.14256/JCE.3483.2022numerical modelperforated epsheat flowwater vapor diffusionequivalent thermal conductivity |
| spellingShingle | Mergim Gaši Bojan Milovanović Ivana Banjad Pečur Marina Bagarić Effect of perforations and slits on hygrothermal properties of EPS Građevinar numerical model perforated eps heat flow water vapor diffusion equivalent thermal conductivity |
| title | Effect of perforations and slits on hygrothermal properties of EPS |
| title_full | Effect of perforations and slits on hygrothermal properties of EPS |
| title_fullStr | Effect of perforations and slits on hygrothermal properties of EPS |
| title_full_unstemmed | Effect of perforations and slits on hygrothermal properties of EPS |
| title_short | Effect of perforations and slits on hygrothermal properties of EPS |
| title_sort | effect of perforations and slits on hygrothermal properties of eps |
| topic | numerical model perforated eps heat flow water vapor diffusion equivalent thermal conductivity |
| url | https://doi.org/10.14256/JCE.3483.2022 |
| work_keys_str_mv | AT mergimgasi effectofperforationsandslitsonhygrothermalpropertiesofeps AT bojanmilovanovic effectofperforationsandslitsonhygrothermalpropertiesofeps AT ivanabanjadpecur effectofperforationsandslitsonhygrothermalpropertiesofeps AT marinabagaric effectofperforationsandslitsonhygrothermalpropertiesofeps |