標題: APPROXIMATE SOLUTIONS FOR TRANSIENT-RESPONSE OF A SHELL AND TUBE HEAT-EXCHANGER
作者: TAN, KS
SPINNER, IH
應用化學系
Department of Applied Chemistry
公開日期: 1-七月-1991
摘要: Approximate solutions for the transient response of a shell and tube heat exchanger to step change in shell fluid temperature and tube fluid velocity are derived. It has been shown that other previously published limited or approximate solutions are derivable from the exact solutions. The limiting asymptotic "no wall" solutions for both response to shell fluid temperature and tube fluid velocity change are also deducible from a limiting tube wall time constant solution. Some of the approximate solutions presented include the use of simple exponential forms of equations that enable the quick estimation of the time required to reach a given degree of approach to the final steady state. The error between the exact and the approximate exponential form of solutions are in most cases less than 2%. All the previous derived exact and approximate solutions presented here are applicable to crosscurrent, cocurrent, or countercurrent flow heat exchangers with one infinite thermal capacitance rate fluid.
URI: http://hdl.handle.net/11536/3742
ISSN: 0888-5885
期刊: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume: 30
Issue: 7
起始頁: 1639
結束頁: 1646
顯示於類別:期刊論文


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