E-resources
Peer reviewed
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Malinowski, Leszek
International journal of heat and mass transfer, 06/2019, Volume: 135Journal Article
•Parallel-flow four-channel four-fluid heat exchanger is investigated.•Transient temperature field is determined semi-analytically.•Laplace transform and numerical inverse algorithm are used.•Semi-analytical solutions are validated by numerical and analytical solutions. A set of partial differential equations which describes transient behavior of parallel-flow four-channel four-fluid heat exchangers is solved using Laplace transform and numerical inverse algorithm. A case of a temperature disturbance in one channel and the homogeneous initial conditions is studied. To validate the semi-analytical solutions, they are compared with pure numerical and analytical solutions. The agreement is very good.
