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Transient behaviour of shell and tube heat exchangers
Author(s) -
Roetzel Wilfried,
Xuan Yimin
Publication year - 1993
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.270160503
Subject(s) - heat exchanger , mechanics , shell and tube heat exchanger , bundle , transient (computer programming) , concentric tube heat exchanger , laplace transform , tube (container) , materials science , thermodynamics , dispersion (optics) , physics , mathematics , composite material , computer science , optics , mathematical analysis , operating system
Based on the dispersion model rather than on the conventional pluf‐flow model, a method of predicting the transient behaviour of parallel and counterflow heat exchangers is developed, whereby the effects of shell‐side flow maldistribution and the finite heat capacities of both fluids, tube bundle and shell are considered. The final solution has been obtained by numerical inversion of the Laplace transform, to determine the transient responses to arbitrary inlet temperature variations. The experiment was carried out in a one pass tube heat exchanger. The comparison between therotical and experimental results is presented and the feasibility of this method is discussed.