Liu, Xueping, Gao, Wenfeng, Xu, Ling, Lin, Wenxian, Ding, Xiang, Dai, Wei, and Liu, Tao (2011) Comparative study on the two testing methods to obtain the heat gain for flat-plate solar water heaters with vertical storage tanks. Journal of Yunnan Normal University, 31 (4). pp. 36-40.

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Abstract

In this paper, the testing methods to obtain the useful heat gain for flat-plate solar water heaters with vertica1 storage tanks by the mixing-water method and by the draining-water meters are comparatively studied. The results show that the useful heat gain obtained by the draining-water method is slightly higher that that obtained by the mixing-water method. In addition, the experiments also show that in the mixing-water method the percentage of useful heat gain stored in the flat-plate solar collectors is small and hence when we conduct the testing on the useful heat gain for flat-plate solar water heaters the effect of the working medium in the flat-plate solar collectors can be assumed negligible.

Item ID:	21543
Item Type:	Article (Research - C1)
ISSN:	1007-9793
Keywords:	draining-water method; mixing-water method; useful heat gain; flat-plate solar water heater
Additional Information:	Article in Chinese, abstract only in English.
Funders:	National Natural Science Foundation of China
Date Deposited:	22 Apr 2012 22:48
FoR Codes:	09 ENGINEERING > 0915 Interdisciplinary Engineering > 091505 Heat and Mass Transfer Operations @ 80% 09 ENGINEERING > 0915 Interdisciplinary Engineering > 091504 Fluidisation and Fluid Mechanics @ 20%
SEO Codes:	85 ENERGY > 8505 Renewable Energy > 850506 Solar-Thermal Energy @ 100%
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