Journal of Fisheries and Marine Sciences Education (수산해양교육연구)
- Volume 5 Issue 2
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- Pages.119-127
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- 1993
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- 1229-8999(pISSN)
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- 2288-2049(eISSN)
A Study on Finned Tube Used in Turbo Refrigerator(II) - on boiling heat transfer -
터보 냉동기용 핀 튜브에 관한 연구(II) - 비등 열전달에 관하여 -
- Han, Kyu-Il (National Fisheries University of Pusan) ;
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Kim, Si-Young
(National Fisheries University of Pusan) ;
- Cho, Dong-Hyun (National Fisheries University of Pusan)
- Published : 1993.12.31
Abstract
This work studies for heat transfer and pressure drop performance of integral inner and outer fin tubes, designed to enhance the heat transfer performance of smooth tubes for in recipro and turbo refrigerator or high performance compact heat exchangers. Eight different inner spiral fin copper tubes with integral fin at outside surfaces were employed to improve boiling heat transfer coeffcient. For comparison, tests were made using a plain tube having the inside diameter and an outside diameter equal to that at the root of the fins for the finned tubes. Pool boiling heat transfer is investigated experimentally and theoretically on single tube arrangement. The refrigerant evaporates at a saturation state of 1 bar on the outside tube surface heated by hot water. The refrigerant R11 (
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