Non-convective roof pond for passive space heating

N. D. Kaushik and S. K. Rao

Applied Energy, 1982, vol. 12, issue 1, 36 pages

Abstract: This paper reports on an investigation of a passive system comprising a non-convective pond placed on the roof of a building in order to heat the building. Periodic analysis of the solar heat transfer process in the system, which is exposed to solar radiation and atmospheric temperature on one side and is in contact with room air at constant temperature (corresponding to an air-conditioned room) on the other, indicates that this system provides better thermal storage than a thick concrete roof or the convective roof pond system. In sunny winter climates, such a system can provide 100% of all heating needs. A viscosity stabilised non-convective pond of shallow depth (10-15 cm) is envisaged to be the most suitable for the present application.

Date: 1982
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