대한설비공학회:학술대회논문집 (Proceedings of the SAREK Conference)
- 대한설비공학회 2006년도 하계학술발표대회 논문집
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- Pages.68-73
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- 2006
수평미세관내 R-290의 비등열전달 특성
Boiling Heat Transfer Characteristics of R-290 in Horizontal Minichannel
- Choi, Kwang-Il (Graduate School, Chonnam National University) ;
- Pamitran, A.S. (Graduate School, Chonnam National University) ;
- Oh, Jong-Taek (Department of Refrigeration Eng., Chonnam National University)
- 발행 : 2006.06.21
초록
The present paper deals with an experimental study of boiling heat transfer characteristics of R-290, and is focused on pressure gradient and heat transfer coefficient of the refrigerant flow inside horizontal smooth minichannel with inner diameter of 3.0 mm and length of 2000 mm. The direct heating method applied for supplying heat to the refrigerant where the test tube was uniformly heated by electric current which was applied to the tube wall. The experiments were conducted with R-290 with purity of 99.99% at saturation temperature of 0 to
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