An evaluation methodology proposal for building envelopes containing phase change materials: the case of a flat roof in Turkey’s climate zones
| Autor: | S. Cengiz Yesügey, Tahsin Başaran, Ayça Tokuç |
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| Přispěvatelé: | TR165509, Başaran, Tahsin, Izmir Institute of Technology. Architecture |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Engineering
business.industry Passive cooling Cooling load 020209 energy Thermal comfort 02 engineering and technology Structural engineering Computational fluid dynamics Thermal energy storage Phase change materials Thermal mass Flat roof Heat flux Architecture 0202 electrical engineering electronic engineering information engineering Latent thermal energy storage business |
| Popis: | Phase change materials (PCMs) can be used to enhance the thermal energy storage capacity of a building element to improve indoor thermal comfort conditions and decrease energy usage, yet these effects need to be carefully analysed to achieve the desired benefits. This paper proposes an evaluation methodology for building envelopes: first, a numerical computational fluid dynamics model is validated by experimental work; then, time-dependent simulations are used to analyse monthly energy requirements and heat flux. A sample flat roof is evaluated in terms of required cooling load with and without PCM in Turkey’s climate zones. Graphical phase change representations and heat flux results were used to evaluate the cooling load reduction in addition to the effects of PCM type and PCM amount and the necessity for night cooling. In conclusion, the methodology is flexible and can be utilized to evaluate the building element for various parameters. Dokuz Eylul Universitesi 2010.KB.FEN.011 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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