JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2012, Vol. 42 ›› Issue (6): 121-126.

• Articles • Previous Articles     Next Articles

Effects of the contact points distribution on heat transfer and resistance performances of plate heat exchangers

ZHANG Jing-zhi, TIAN Mao-cheng*, ZHANG Guan-min, LENG Xue-li   

  1. School of Energy and Power Engineering, Shandong University, Jinan 250061, China
  • Received:2012-06-06 Online:2012-12-20 Published:2012-06-06

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Abstract: In order to improve comprehensive performance of plate heat exchanger, the distribution of contact points was investigated. The correlations between the distribution and L were obtained. The L was the distance between lower crest line and symmetry axis of plate heat exchanger. Numerical simulation was conducted to investigate the influence of distribution of contact points to the performances of plate heat exchanger. Heat transfer performance and pressure drop characteristics of the chevron plate heat exchanger were got. The results showed that positions of first row contact points, pressure drop and Nu changed periodically, which could get their minimum at half of the cycle. The comprehensive factor j／f had the same cycle and the opposite trend with Nu and pressure drop, which could obtain its maximum at half of the cycle. The influence of the distribution of contact points to the performances of plate heat exchangers increased with the increasing of Re number. The comprehensive performance of plate heat exchanger could improve at half of the cycle.

Key words: plate heat exchanger, contact points distribution, numerical simulation, heat transfer, resistance performances

CLC Number: 

  • TK124
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