Solar Energy (태양에너지)
- Volume 19 Issue 1
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- Pages.67-75
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- 1999
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- 0253-3103(pISSN)
Convection and Non-Gray Radiation in a Tube with Circumferential Fins and Circular Disks
배플이 있는 튜브 내에서의 대류와 비회복사
- Lee, Jae-Yong (Graduate School, Inha University) ;
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Seo, Tae-Beom
(Department of Mechanical Engineering, Inha University)
;
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Kim, Chong-Bo
(Department of Mechanical Engineering, Inha University)
- Published : 1999.03.31
Abstract
The effect of radiation heat transfer was investigated under various operating conditions in a circular tube with circumferential fins and circular disks. Using a finite volume technique(FVM) for steady laminar flow, the governing equations were derived in order to simulate the flow and temperature fields. In addition, the P-1 approximation and the Weighted Sum of Gray Gas Model(WSGGM) were used for the radiation transport equation(RTE). From the results, radiation heat transfer was significant compared to convection heat transfer. These results will be applied to the design of the heat exchanger for a condensing bolier, which were developed for domestic heating.
Keywords