It is shown that the conditions of ideal heat exchange, according to which at the given heat load and overall heat transfer coefficient the entropy production in the system attains its lower boundary, can be realized in a set of countercurrent heat exchangers on coordinated selection of temperatures and heat capacities of flows. The parameters of flows and the distribution of heat transfer coefficients and heat loads between two-flow heat exchangers for the Newtonian kinetics have been determined. The value of the minimal dissipation and the profile of the distribution of the overall heat transfer coefficient for the case where the temperature profile of one of the flows is fixed have been obtained.
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 93, No. 4, pp. 783–792, July–August, 2020.
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Tsirlin, A.M. On Realization of Ideal Multiflow Heat Exchange. J Eng Phys Thermophy 93, 757–765 (2020). https://doi.org/10.1007/s10891-020-02176-7
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DOI: https://doi.org/10.1007/s10891-020-02176-7