ON REALIZATION OF IDEAL MULTIFLOW HEAT EXCHANGE

It is shown that the conditions of ideal heat exchange, according to which at the given heat load and overall heat transfer coeffi cient 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 fl ows. The parameters of fl ows and the distribution of heat transfer coeffi cients and heat loads between two-fl ow heat exchangers for the Newtonian kinetics have been determined. The value of the minimal dissipation and the profi le of the distribution of the overall heat transfer coeffi cient for the case where the temperature profi le of one of the fl ows is fi xed have been obtained.
   
Author:  A. M. Tsirlin
Keywords:  ideal heat exchange, heat transfer coeffi cient, entropy, heat loads, Newtonian kinetics
Page:  757