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Performance degradation due to longitudinal heat conduction in very high NTU counterflow heat exchangers

✍ Scribed by S. Pradeep Narayanan; G. Venkatarathnam


Book ID
104111518
Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
146 KB
Volume
38
Category
Article
ISSN
0011-2275

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✦ Synopsis


High effectiveness heat exchangers are employed in most cryogenic systems. In some systems such as cryocoolers employed in space, the NTU of the heat exchangers employed is quite large. The effectiveness of all such exchangers is largely controlled by the longitudinal heat conduction through the walls. In this paper, we present a closed form expression for the effectiveness of very high NTU counterflow heat exchangers.