DocumentCode :
2109422
Title :
Simulation Study of Influence of Inertia of Water on the Thermal Performance of All-glass Evacuated Tube Solar Collector
Author :
Gao, Yan ; An, Yujiao ; Li, Deying ; Chen, Yanhong
Author_Institution :
Dept. of Environ. & Energy Eng., Beijing Univ. of Civil Eng. & Archit., Beijing, China
fYear :
2010
fDate :
28-31 March 2010
Firstpage :
1
Lastpage :
5
Abstract :
Under the unsteady condition, a new numerical model was developed so as to study the influence of inertia of water on the thermal performance of all-glass evacuated tube solar collector and match the differences with the conventional models. Simulation results are presented referring to the impacts of inertia of water on the outlet collector temperature, the on/off control of pump and the useful heat gain from the storage tank. Comparison of the results obtained from the simulation confirms that for all-glass evacuated tube solar collector, the effect of inertia of water is critical. Reducing the inertia of water will result in increasing pump turn-on time and more useful heat gain.
Keywords :
solar absorber-convertors; outlet collector temperature; pump control; thermal performance; tube solar collector; water inertia; Educational products; Heat pumps; Heat transfer; Integral equations; Optical losses; Solar heating; Temperature control; Thermal engineering; Water heating; Water storage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
Type :
conf
DOI :
10.1109/APPEEC.2010.5449079
Filename :
5449079
Link To Document :
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