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IIR document

The Joule cycle realised in a rotation heat pump.

Number: 1022

Author(s) : LÄNGAUER A., ADLER B.

Summary

The mainly used thermodynamic cycle realised in heat pumps is the so-called Plank cycle, at the theoretical maximum efficiency point ending up in the Carnot cycle. In contrast to this, a Rotation Heat Pump (RHP) is based on the Joule cycle where the compression of the environmentally friendly working fluid (no global warming potential) is accomplished by centrifugal forces. This results in a compression efficiency of more than 99%. Since there is no phase change during the heat exchange and the mixture of noble gases is always gaseous it is not depending on a certain temperature level.
The fundamental calculations and basics of the Joule cycle realised in a RHP including the derivation from the principle thermodynamics are presented in combination with different operating points and temperature levels. Further, analytical calculations are compared with complex 3D-simulations and also test results of a reference machine to demonstrate the function and performance.

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Pages: 6p.

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Details

  • Original title: The Joule cycle realised in a rotation heat pump.
  • Record ID : 30027890
  • Languages: English
  • Subject: Technology
  • Source: 14th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2020). Proceedings. Kyoto, Japon, December 7-9th 2020.
  • Publication date: 2020/12/07
  • DOI: http://dx.doi.org/10.18462/iir.gl.2020.1022
  • Document available for consultation in the library of the IIR headquarters only.

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