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FLOW REVERSIBILITY OF HEAT EXCHANGERS.

Author(s) : PIGNOTTI A.

Type of article: Article

Summary

A SYMMETRY PROPERTY WHICH RELATES THE THERMAL BEHAVIOR OF A HEAT EXCHANGE PROCESS TO THAT OF THE REVERSE PROCESS, IS DEMONSTRATED FOR THE IDEAL CASE OF NO CHANGE OF PHASE, NO HEAT LOSSES, AND TEMPERATURE-INDEPENDENT HEAT TRANSFER COEFFICIENTS AND HEAT CAPACITIES. THE SYMMETRY IS FORMULATED IN TERMS OF A RELATION BETWEEN THE MATRICES THAT DESCRIBE THE DIRECT AND REVERSE PROCESS. THE FORMALISM USED DOES NOT REQUIRE THE INLET AND OUTLET STREAMS TO BE COMPLETELY MIXED, BUT WHEN THIS IS THE CASE, BOTH MATRICES COINCIDE. THE CONSEQUENCES OF THE SYMMETRY ARE ILLUSTRATED BY THE DISCUSSION OF A THREE-ROW, TWO-PASS AIR COOLER, AND THE SPLIT FLOW SHELL AND TUBE HEAT EXCHANGER.

Details

  • Original title: FLOW REVERSIBILITY OF HEAT EXCHANGERS.
  • Record ID : 1985-0533
  • Languages: English
  • Source: J. Heat Transf. - vol. 106 - n. 2
  • Publication date: 1984/05
  • Document available for consultation in the library of the IIR headquarters only.

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