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Effectiveness-thermal resistance method for heat exchanger design and analysis

DSpace at IIT Bombay

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Field Value
 
Title Effectiveness-thermal resistance method for heat exchanger design and analysis
 
Creator GUO, ZY
LIU, XB
TAO, WQ
SHAH, RK
 
Subject entransy
heat exchanger
thermal resistance
entransy dissipation
entropy generation
 
Description The equivalent thermal resistance of a heat exchanger is defined based on the concept of the entransy dissipation rate, which measures the irreversibility of heat transfer for the purpose of object heating or cooling, rather than from the heat to work conversion. The relationships between the heat exchanger effectiveness and the thermal resistance (or conductance) are developed, which do not depend on its flow arrangement, and hence useful for the performance comparison among heat exchangers with different flow arrangements. In addition, such relationships bridge a gap between the heat exchanger irreversibility and its effectiveness. The monotonic decrease of the effectiveness with increasing the thermal resistance shows that the heat exchanger irreversibility can be described by its thermal resistance when evaluated from the transport process viewpoint, while the so-called entropy generation paradox occurs, if the irreversibility is measured by the entropy generation number for a heat exchanger.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-08-24T05:08:42Z
2011-12-26T12:56:45Z
2011-12-27T05:45:56Z
2011-08-24T05:08:42Z
2011-12-26T12:56:45Z
2011-12-27T05:45:56Z
2010
 
Type Article
 
Identifier INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 53(13-14), 2877-2884
0017-9310
http://dx.doi.org/10.1016/j.ijheatmasstransfer.2010.02.008
http://dspace.library.iitb.ac.in/xmlui/handle/10054/10766
http://hdl.handle.net/10054/10766
 
Language en