한국신재생에너지학회:학술대회논문집
- 2005.11a
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- Pages.595-598
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- 2005
Thermal performance comparisons of the glass evacuated tube solar collectors of different absorber tubes
진공관형 태양열 집열기의 내부형상 변화에 따른 성능 비교
- Published : 2005.11.11
Abstract
The thermal performance of glass evacuated tube solar collectors are numerically and experimentally investigated. Four different shapes of solar collectors are considered and the performances of these solar collectors are compared. Dealing with a single collector tube, the effects of not only the shapes of the absorber tube but also the incidence angle of solar irradiation (beam radiation) on thermal performance of the collector are studied. However the solar irradiation consists of the beam radiation as well as the diffuse radiation. Also, the interference of solar irradiation and heat transfer interaction between the tubes exist in an actual solar collector. These effects are considered in this study experimentally and numerically the accuracy of the numerical model is verified by the experimental results. The result shows that the thermal performance of the absorber used a plate fin and U-tube is the best.
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