Predicting Evaporative Cooling Performance of Wetted Decorative Porous Ceramic Systems in Early Design Stages : WestminsterResearch

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Title	Predicting Evaporative Cooling Performance of Wetted Decorative Porous Ceramic Systems in Early Design Stages
Authors	Chilton, M., Gillott, M. and Vallejo, J.
Type	Conference paper
Abstract	Passive evaporative cooling methods using porous ceramics were widely applied in the Islamic culture to reduce ambient air and surface temperatures and thus improve thermal comfort conditions under hot-dry environments. However, the integration and performance prediction of evaporative Porous Ceramic Cooling (PCC) systems in contemporary architecture is still complex due to the large number of environmental and physical parameters involved. This paper explores alternative and more efficient applications of PCC systems: maximising cooling capacity, minimising water consumption and promoting the artistic expression of ceramics in architecture. Laboratory testing and fieldwork were conducted using an optimised prototype and monitored data provided with relevant information regarding cooling performance. The obtained data was used to calibrate a Computational Fluid Dynamic (CFD) model which was used to explore the performance of different ceramic designs exposed to a wide range of environmental conditions. The results were post-processed to develop a multi-steady state calculation tool to advise professionals on the design and performance prediction of PCC systems at early design stages. The system proved to be a good alternative to minimise local thermal discomfort, reducing ambient air temperature by 2°C and mean radiant temperature by 1.8°C on the leeward of certain PCC systems.
Keywords	evaporation, ceramic, cooling, performance prediction
Year	2017
Conference	Passive and Low Energy Architecture Conference 2017
Published	Aug 2017
Journal citation	pp. 3738-3745
Book title	Proceedings of the 33rd PLEA International Confereence: Design to Thrive, Edinburgh, 2nd-5th July 2017. Volume III
Book editor	Brotas, L.
	Roaf, S.
	Nicol, F.
ISBN	9780992895754
Web address (URL) of conference proceedings	https://plea2017.net/

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Predicting Evaporative Cooling Performance of Wetted Decorative Porous Ceramic Systems in Early Design Stages

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