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Hermetic engine driven compressor using R744 as refrigerant and natural gas as fuel.

Number: pap. n. 191

Author(s) : BEEK M. van, JANSSEN M., BERCHOWITZ D.

Summary

A compact gas-fuelled engine-driven compressor, using R744 as refrigerant, for a domestic heat pump (10 kW) is being developed. The engine is of the Stirling type, which is combined with the compressor part in a single, completely, sealed system. Input energy is provided by recuperated bas burner. An overall system energy diagram and some principal sketches are presented to explain the basic functioning of the machine. Some pictures of a model of the engine driven compressor integrated into a heat pump are shown to provide more detailed insight in system design and configuration possibilities. It is shown that R744, due to its thermodynamic properties, is the most suitable working fluid for such a combined system. Estimations of system performance show that high primary energy ratios of up to 1.8 are possible using a small capacity heat pump (4 kW).

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Pages: 8 p.

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Details

  • Original title: Hermetic engine driven compressor using R744 as refrigerant and natural gas as fuel.
  • Record ID : 30004330
  • Languages: English
  • Source: 10th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2012). Proceedings. Delft, The Netherlands, June 25-27, 2012.
  • Publication date: 2012/06/25

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