Flow mechanism and heat transfer enhancement in longitudinal-flow tube bundle of shell-and-tube heat exchanger

2009 ◽  
Vol 52 (10) ◽  
pp. 2952-2959 ◽  
Author(s):  
Wei Liu ◽  
ZhiChun Liu ◽  
YingShuang Wang ◽  
SuYi Huang
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Heat Transfer Enhancement ◽  
Tube Bundle ◽  
Flow Mechanism ◽  
Longitudinal Flow ◽  
Transfer Enhancement ◽  
Flow Tube ◽  
Tube Heat Exchanger ◽  
Shell And Tube

Research on Heat Transfer Enhancement of Shutter Baffle Heat Exchanger

2011 ◽  
Vol 236-238 ◽  
pp. 1607-1613 ◽  
Author(s):  
Xin Gu ◽  
Yong Qing Wang ◽  
Qi Wu Dong ◽  
Min Shan Liu
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Heat Transfer Enhancement ◽  
Cross Flow ◽  
Processing Parameters ◽  
Transfer Enhancement ◽  
Shell Side ◽  
Tube Heat Exchanger ◽  
New Energy ◽  
Shell And Tube

A new concept of “Sideling Flow” in shell side of shell-and-tube heat exchanger is presented, which is relative to the cross flow, longitudinal flow and helical flow in heat exchanger. A type of new energy saving shell-and-tube heat exchanger with sideling flow in shell side, shutter baffle heat exchanger is invented, which exhibits the significant heat transfer enhancement and flow resistance reducement performance. The “Field Synergy Principle” is adopted to analyze the heat transfer enhancement mechanism of sideling flow, it is indicated that the shutter baffle heat exchanger exhibits the perfect cooperativity between velocity field and temperature grads field. Effects of the structure and processing parameters on the fluid flow and heat transfer are also investigated through numerical simulation, both the correlative equations of heat transfer coefficient and pressure drop in shell side are deduced, which provide references for the design and popularization of this new type heat exchanger.

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