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Performance Investigation of Heat Transfer and Flow Resistance in Two Kinds ofHeat Exchangers of Tube Bundle Arrangement with Equilateral Triangles
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[1]GU Xin,LU Bing,DONG Qiwu,et al.Performance Investigation of Heat Transfer and Flow Resistance in Two Kinds ofHeat Exchangers of Tube Bundle Arrangement with Equilateral Triangles[J].Journal of Zhengzhou University (Engineering Science),2012,33(03):76-79.[doi:10.3969/j.issn.1671-6833.2012.03.019]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 33卷 Number of periods: 2012 03 Page number: 76-79 Column: Public date: 2012-05-10
Title:
Performance Investigation of Heat Transfer and Flow Resistance in Two Kinds ofHeat Exchangers of Tube Bundle Arrangement with Equilateral Triangles
Author(s):
GU Xin; LU Bing; DONG Qiwu; etc;
Key l ahoratory of Process Hes Transfer and Energy Saving of flenan Province. Zhengzhou University, Zhengzhou 450002 , China
Keywords:
heat exchanger;  bafle-plate;  shutter bafe ;  numerical simulation
CLC:
TK124
DOI:
10.3969/j.issn.1671-6833.2012.03.019
Abstract:
ln this paper, CFD numerical simulation and periodic whole cross-ssection computation model ofbafile-plate heat exchanger and shutter baffle heat exchanger which tube bundle arrangement with equilateraltriangles are adopted to study the changes of the performance of heat transfer coeficient, flow resistance, com.prehensive performance with Re. The simulation results indicate that two kinds of heal exchangers’ heat trans.fer coefficient and shell.side pressure loss increases with the increase of Re, baflle-plate heat exchanger’ heattransfer coeffcient is greater than shutter baffle heat exchanger, it is about 1, 32 times larger than shutter baffleheat exehanger, but the pressure drop is much greater than shutter bafle heat exchanger, it is about 2.4 timeslarger than shutter baffle heat exchanger, their comprchensive performance decline with the increase of Re, a/AP of shutter bafNle is almost 2 times larger than baffle-plate heat exchanger, this rellects shutler baffle heatexchanger has significant flow drag reduction performance in the case of higher heat transfer.
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