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Experimental Research On Thermal Performance Of Glazing Cover Of High-Efficiency Solar Collector Panel

Posted on:2007-08-21Degree:MasterType:Thesis
Country:ChinaCandidate:H M ZhangFull Text:PDF
GTID:2132360212966834Subject:Heating, Gas Supply, Ventilation and Air Conditioning Engineering
Abstract/Summary:PDF Full Text Request
Due to the conflict of the fast development of world economic and fossil energy lacking, it is inevitable to develop clean reproducible energy. The paper comprehensively reviews the status of the study of solar energy collector, analyses the development of solar technologies, and chooses lucid cover board with high efficiency avoiding the disadvantage of low efficiency of the actual solar collector at high temperature. Based on the experiment and theoretical, this paper compares the affection of heating collecting parameter and efficiency of solar collector with SG,DG,LDG,ADG and LADG as cover board, and draws the conclusion of the five kinds cover arose of different affection on the heat insulating property and transmissivity.Theoretically, the paper indicates the method of reducing heat loss through the analysis on heat loss of solar collecting system, and introduces the calculate methods of the efficiency of collector and the whole solar collector system. It demonstrates the significance of different cover to the collecting behavior.In respect of experiment, the paper introduces the experimental equipment, the facture and demarcation of thermocouples, the measure of heat-transfer coefficient, etc. The parameters are compared through the analysis and calculation of the solar collector with different cover at the same outside conditions. Compared with DGSC, the heat collecting efficiencies of LDGSC and ADGSC increase 10.12% and 6.24%, and the top heat loss coefficients of LADGSC,ADGSC,LDGSC reduce 35%,25% and 10%,respectively.
Keywords/Search Tags:Solar collector panel, Transparent glazed covering plate, Thermotechnical performance, Heat collecting efficiency
PDF Full Text Request
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