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CALCULATING COP FOR REGENERATIVE HEAT ENGINES THROUGH MODELLING.

[In German. / En allemand.]

Author(s) : EDER F. X.

Type of article: Article

Summary

FOR REGENERATIVE HEAT ENGINES LIKE STIRLING ENGINES OR HEAT PUMPS USING THE VUILLEUMIER PROCESS, CALCULATING COP WITH ONLY THE 2 FUNDAMENTAL LAWS OF THERMODYNAMICS IS LIMITED TO IDEAL MACHINES, WHERE ONE IGNORES THE PRESSURE AND TEMPERATURE DROPS AT HEAT EXCHANGERS, THE LOSSES PRODUCED BY FRICTION AND HEAT CONDUCTION, AND THE ADIABATIC BEHAVIOUR OF THE WORKING GAS. THE TEMPERATURE DIFFERENCES AND FLOW LOSSES OCCURRING WITHIN HEAT EXCHANGERS AND THERMAL REGENERATORS, THE HEAT LOSSES ALONG CYLINDER AND DISPLACER PISTON, AND MECHANICAL FRICTION LOSSES WERE CONSIDERED, USING THE MODELLING METHOD PRESENTED IN THE PAPER. THE EQUATIONS DERIVED FOR A REAL ENGINE WITH LOSSES CAN BE SOLVED UNDER THESE CONDITIONS BY AN ITERATION PROCEDURE.

Details

  • Original title: [In German. / En allemand.]
  • Record ID : 1992-0819
  • Languages: German
  • Source: Klima Kälte Heiz. - vol. 19 - n. 5
  • Publication date: 1991/05
  • Document available for consultation in the library of the IIR headquarters only.

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