설비공학논문집 (Korean Journal of Air-Conditioning and Refrigeration Engineering)
- 제11권6호
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- Pages.740-748
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- 1999
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- 1229-6422(pISSN)
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- 2465-7611(eISSN)
공냉식 수직 흡수기의 열전달에 미치는 계면활성제의 영향
Influence of surfactant on heat transfer of air-cooled vertical absorber
초록
This research was concerned with the enhancement of heat transfer by surfactant added to the aqueous solution of LiBr. Different vertical tubes were tested with and without an additive of normal octyl alcohol. The test tubes were a bare inner surface, groove inner surface, corrugated inner surface and spring inserted inner surface tubes. The additive concentration was about 0.08 mass%. The heat transfer coefficient was measured as a function of film Reynolds number in the range of 20~200. Experiments were tarried out at higher cooling water temperature of
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