MODELING THE THERMOSIPHONIC SOLAR WATER-HEATER WITH DRAW-OFF

被引:1
作者
KAMAL, WA
机构
[1] Qatar Univ, Doha, Qatar, Qatar Univ, Doha, Qatar
关键词
HEAT TRANSFER - Computer Simulation - MATHEMATICAL MODELS;
D O I
10.1016/0196-8904(86)90013-0
中图分类号
O414.1 [热力学];
学科分类号
摘要
A model of the time-dependent behavior of the solar water heating system with natural circulation is modified to include the effects of water draw-off. Through computer simulation, the model is used to study the influence of the draw-off starting temperature T//s and the draw-off rate m//d on the overall system efficiency. Hot water withdrawal is assumed continuous from the moment the tank mean temperature reaches T//s. The results presented show that efficiency increases as T//s is decreased and/or m//d is increased. However, the draw-off parameters should be optimized in relation to the collector area and the tank volume for the location considered.
引用
收藏
页码:329 / 335
页数:7
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