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Heat Transfer Research
Импакт фактор: 0.404 5-летний Импакт фактор: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Печать: 1064-2285
ISSN Онлайн: 2162-6561

Выпуски:
Том 50, 2019 Том 49, 2018 Том 48, 2017 Том 47, 2016 Том 46, 2015 Том 45, 2014 Том 44, 2013 Том 43, 2012 Том 42, 2011 Том 41, 2010 Том 40, 2009 Том 39, 2008 Том 38, 2007 Том 37, 2006 Том 36, 2005 Том 35, 2004 Том 34, 2003 Том 33, 2002 Том 32, 2001 Том 31, 2000 Том 30, 1999 Том 29, 1998 Том 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2016011666
pages 81-95

NUMERICAL AND EXPERIMENTAL INVESTIGATION OF THE SHELL SIDE CHARACTERISTICS OF THE TREFOIL-HOLE BAFFLE HEAT EXCHANGER

Dan Wang
Key Laboratory of Process Heat Transfer and Engergy Saving of Henan Province, Zhengzhou University, No.97 Wenhua Rd. Jinshui District, Zhengzhou City, Henan 450002, China
Ke Wang
China University of Petroleum-Beijing, 18 Fuxue Road, Changping, Beijing 102249, China; Royal Institute of Technology (KTH), Albanova University Center, Roslagstullsbacken 21, Stockholm 10691, Sweden
Yongqing Wang
Key Laboratory of Process Heat Transfer and Engergy Saving of Henan Province, Zhengzhou University, No.97 Wenhua Rd. Jinshui District, Zhengzhou City, Henan 450002, China
Caipeng Bai
Key Laboratory of Process Heat Transfer and Energy Saving of Henan Province, Zhengzhou University, Zhengzhou 450002, China
Minshan Liu
Key Laboratory of Process Heat Transfer and Engergy Saving of Henan Province, Zhengzhou University, No.97 Wenhua Rd. Jinshui District, Zhengzhou City, Henan 450002, China

Краткое описание

The shell-and-tube heat exchanger with a trefoil-hole baffle in the shell side is extensively used at nuclear power stations. In the present work, a periodic flow unit duct was taken as a simplified model to numerically investigate the thermal-hydraulic performance of the trefoil-hole baffle heat exchanger. Based on the numerical results, the empirical correlations for the Nusselt number and pressure drop were derived, and the relative errors of the two empirical correlations are all less than 10%. The detailed characteristics of fluid flow and heat transfer for the fully developed section in the shell side of the trefoil-hole heat exchanger were analyzed. The fluid flow experiments for the trefoil-hole baffle heat exchanger were carried out. The flow velocities at special points in the shell side of a heat exchanger were measured by using a Laser Doppler Velocimeter (LDV). It can be concluded that the relative errors of the axial velocity Vz for all measured points between simulation and experiment are within 20%. The validity and accuracy of the numerical simulation results are verified.


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