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A frost-less heat pump.

Author(s) : MEI V. C., DOMITROVIC R. E., CHEN F. C., et al.

Summary

Frost accumulation on the outdoor coil of a heat pump is one of the basic concerns for heat pump operation. Defrosting by cycle reversing is energy consuming, compromises indoor thermal comfort, and causes excessive and unnecessary use of electric resistance heating. By adding a moderate amount of heat to the refrigerant stream in the accumulator, the evaporator coil temperature can be raised by several degrees. This concept can be used to retard frost accumulation on the outdoor coil of the heat pump and thus keep the coil clean.

Details

  • Original title: A frost-less heat pump.
  • Record ID : 2003-0447
  • Languages: English
  • Source: ASHRAE Transactions. 2002 Winter Meeting, Atlantic City, New Jersey. Volume 108, part 1 + CD-ROM.
  • Publication date: 2002
  • Document available for consultation in the library of the IIR headquarters only.

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