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Experimental investigation of a heat pump assisted drum drying system using propane (R290) as working fluid.

Number: pap. n. 308

Author(s) : STORSLETT E., EIKEVIK T. M.

Summary

This study experimentally investigates the suitability of R290 in replacement of R134a as refrigerant in a mass-produced heat pump assisted drum dryer. A heat pump assisted drum dryer designed for R134a is instrumented and rebuilt by replacement of the compressor and in turn the capillary tube. The effect of R290 charge optimization and capillary tube accommodation is investigated. Input power, refrigerant pressure and temperature as well as temperature and humidity of the airstream is logged. By replacing only the compressor, the R290 system obtained the same level of efficiency as the original R134a system. Subsequent to replacement of the capillary tube 6% increase in COP was observed, maintaining the same level of SMER as with R134a.

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Pages: 8

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Details

  • Original title: Experimental investigation of a heat pump assisted drum drying system using propane (R290) as working fluid.
  • Record ID : 30026441
  • Languages: English
  • Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Publication date: 2019/08/24
  • DOI: http://dx.doi.org/10.18462/iir.icr.2019.0308

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