Development of a solar air heating facade

Stevenson, Elizabeth Victoria ORCID: https://orcid.org/0000-0002-8531-2091, Jones, Phillip John ORCID: https://orcid.org/0000-0003-1559-8984, Alexander, Donald Kneale, Jones, Bryan and Jones, Paul 2005. Development of a solar air heating facade. Presented at: Second Scottish Conference for Postgraduate Researchers of the Built and Natural Environment (PRoBE), Glasgow, UK, 16-17 November 2005. Published in: Egbu, Charles O. and Tong, Michael K. L. eds. The second Scottish conference for postgraduate researchers of the built and natural environment. Glasgow: Caledonian University, pp. 483-492.

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Abstract

A simple solar capture facade can be made by covering standard profiled wall elements with glass sheeting. Solar energy heats the air in the profile channels and generates air movement, while the insulated wall prevents uncontrolled heating of the building. A mathematical model has been developed to predict the exit air temperature, air mass flow, air velocity and power output from such a system. Initial experimental work has taken place to verify the air flow component of the model. This has involved predicting the pressure drop along the length of four prototype ducts using the Darcy equation. These predictions have been found to over estimate the system pressure drop. it was found that by using the Darcy equations with an adjusted hydraulic diameter (increased by 9.75%) gave a better match to the actual data for the geometries and flows considered.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Architecture
Subjects:	T Technology > TD Environmental technology. Sanitary engineering
Publisher:	Caledonian University
ISBN:	190366182X
Last Modified:	20 Oct 2022 08:22
URI:	https://orca.cardiff.ac.uk/id/eprint/28097

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