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공공누리This item is licensed Korea Open Government License

Title
Velocity Profiles between Two Baffles in a Shell and Tube Heat Exchanger
Author(s)
장태현이권수이창환이해수
Publication Year
2015-10-20
Abstract
Heat exchangers are extensively utilized for waste heat recovery, oil refining, chemical processing, and steamgeneration. In this study, velocity profiles are measured using a 3D particle image velocimetry (PIV) system betweentwo baffles in a shell and tube heat exchanger for parallel and counter flows. The PIV and computationalfluid dynamics results show the occurrence of some strong vectors near the bottom. These vectors are assumeddue to the clearance between the inner tubes and the front baffle. Therefore, the major parts of the vectors aremoved out through the bottom opening of the rear baffle, and other vectors produce a large circle between the twobaffles. Numerical simulations are conducted to investigate the effects of the baffle on the heat exchanger usingthe Fluent software. The k–ε turbulence model is employed to calculate the flows along the heat exchanger.
Keyword
Baffle; PIV; Shell and tube heat exchanger; Cut off ratio; CFD
Journal Title
Journal of Thermal Science
Citation Volume
24
ISSN
1003-2169
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Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/14454
http://www.ndsl.kr/ndsl/search/detail/article/articleSearchResultDetail.do?cn=NART73885630
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