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A Study on the Performance Improvement of All-Glass type Solar Vacuum Collectors  

Kang, Sang-Hoon (Department of Nuclear & Energy Engineering, Cheju National University(Research Institute of Advanced Technology))
Chun, Won-Gee (Department of Nuclear & Energy Engineering, Cheju National University(Research Institute of Advanced Technology))
Publication Information
Journal of the Korean Solar Energy Society / v.22, no.1, 2002 , pp. 43-53 More about this Journal
Abstract
This study has been carried out to study the thermal performance of an all-glass type solar collector tube when a heat transfer medium is used with a heat storage unit capable of preventing pressure build-up within the tube. The heat storage unit is devised such that it performs the dual function of relieving excessive pressure and storing solar thermal energy. Different types of heat storage medium are tested under heat-up phase of a collector tube. It is found that the proposed unit could be used quite effectively if one wishes to capitalize more aggressively in harnessing the solar energy.
Keywords
all-glass evacuated tube;
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