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A study on reducing temperature rise of twin-glass evacuated tube solar collector during summer time
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 Title & Authors
A study on reducing temperature rise of twin-glass evacuated tube solar collector during summer time
Bai, Sang-Eun; Bai, Cheol-Ho; Nam, Hyun-Kyu; Shin, Ki-Yeol; Yoo, In-Ho;
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 Abstract
The reflection plate in twin-glass evacuated tube solar collector is controlled to reduce the overheat during the summer time. The sliding type and folding types are suggested and tested. The sliding type changes the plate angle and the folding type changes the opening angle of the reflection plate. By scattering the focus of the reflected radiation from the reflection plate, the temperature rise of the working fluid can be reduced. The sliding type shows the best results in overheat reduction. When solar radiation is 900 , the temperature rise in one sliding type collector is reduced about compared to that of the normal solar collector. When this method is applied to seven series-collectors in the field, the reduction of temperature rise during the summer time should be significant.
 Keywords
Twin-glass evacuated tube solar collector;Folding type;Over heat;Sliding type;
 Language
Korean
 Cited by
1.
태양열 집열관 과열방지를 위한 지중열교환기 연구,황현창;;이계복;이석호;

한국산학기술학회논문지, 2016. vol.17. 7, pp.616-622 crossref(new window)
1.
A study of geothermal heat dump for solar collectors overheat protection, Journal of the Korea Academia-Industrial cooperation Society, 2016, 17, 7, 616  crossref(new windwow)
 References
1.
서 태범, 권 영식, "고성능 이중진공 유리관 태양열 집열기의 개발" , 설비공학논문집, Vol. 2, no. 3, pp. 16-22, 2008.

2.
Lin, Q. and S. Furbo, Solar heating systems with evacuated tubular solar collector. In Proc. of the Eurosun' 98 Conf. on CD-ROM. Portoroz, Slovenia, 1998.

3.
이 동원, "태양열시스템의 개요 및 현황" , 설비저널, Vol. 40, no. 5, pp. 5-1, 2011.

4.
Yun, S. E., Kim, Y. and Seo, T. B., Numerical study of thermal performance of the sun tracking evacuated CPC collector, Proceedings of the SAREK Winter Annual Conference, pp. 445-450, 2004.

5.
Kim, J-M., Kim, Y. and Chung, K-S., Study of solar radiation of fixed and tracking solar collectors for various locations in Korea, Proceedings of the SAREK Summer Annual Conference, pp. 949-954, 2007.

6.
Cho, Y., Kim, Y. and Chung, K-S., A study of optimum slope angles of fixed and azimuth tracking solar collectors by region, period and year, Proceedings of the SAREK Summer Annual Conference, pp. 1012-1017, 2010.

7.
Abdallah, S. and Nijmeh, S., Two axes sun tracking system with PLC control, Energy conversion and Management, Vol. 45, pp. 1931-1939, 2003.