[1]古新,刘冰,董其伍,等.三角形布管方式下两种换热器传热与流阻性能研究[J].郑州大学学报(工学版),2012,33(03):76-79.[doi:10.3969/j.issn.1671-6833.2012.03.019]
　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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三角形布管方式下两种换热器传热与流阻性能研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
33卷
期数:
2012年03期
页码:
76-79
栏目:
出版日期:
2012-05-10

文章信息/Info

Title:
Performance Investigation of Heat Transfer and Flow Resistance in Two Kinds ofHeat Exchangers of Tube Bundle Arrangement with Equilateral Triangles
作者:
古新; 刘冰; 董其伍; 等.
郑州大学 河南省过程传热与节能重点实验室,河南郑州,450002, 郑州大学 河南省过程传热与节能重点实验室,河南郑州,450002, 郑州大学 河南省过程传热与节能重点实验室,河南郑州,450002, 郑州大学 河南省过程传热与节能重点实验室,河南郑州,450002, 郑州大学 河南省过程传热与节能重点实验室,河南郑州,450002
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
关键词:
换热器;  折流板;  帘式折流片;  数值模拟
Keywords:
heat exchanger;  bafle-plate;  shutter bafe ;  numerical simulation
分类号:
TK124
DOI:
10.3969/j.issn.1671-6833.2012.03.019
摘要:
采用CFD数值模拟方法和折流板换热器、帘式折流片换热器周期性全截面计算模型,对两种换热器在正三角形布管方式下的传热系数、阻力、综合性能随Re数的变化情况进行了数值研究.研究结果表明,两种换热器对应的换热系数和壳程压力损失均随Re数的增加而增大,折流版换热器的传热系数大于帘式折流片换热器,约是帘式折流片的1.32倍,但其阻力大幅高于帘式折流片换热器,是帘式折流片换热器的2.4倍左右,两种换热器的综合性能均随Re数的增大而下降,帘式折流片换热器的α/△P几乎是折流板换热器的2倍,体现了帘式折流片换热嚣在保持较高的传热效果的情况下,具有显著的流动减阻性能.
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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更新日期/Last Update: 1900-01-01