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Regulating method of scroll compressors based on refrigerant injection and release.

Number: pap. ID: 545

Author(s) : HAN L., WANG B., SHI W., et al.

Summary

The heat pump is widely used recently. For high thermal comfort and the decrease of start-stop loss, the continuous capacity modulation of heat pump becomes necessary. A novel capacity modulation method for the scroll compressor heat pump based on refrigerant injection and release technologies is advanced. The experiments indicate that the refrigerant injection increases the heating/cooling capacity by 21.9/21.4%, enhances the heating COP/cooling EER by 5.6%/9.0% when the glycol inlet temperature of condenser and evaporator fix at 40? and 0? respectively; The refrigerant release decreases the heating/cooling capacity by 26.6/31.4%, enhances the heating COP/cooling EER by 16.0%/8.4% when the condensing and evaporating temperature fix at 40? and 1.7? respectively. The technology combining refrigerant injection and refrigerant release is a remarkable capacity modulation method for the scroll compressor heat pump, which can modulate the capacity continuously within a wide range as well as increase its energy efficiency ratio.

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Pages: 6 p.

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Details

  • Original title: Regulating method of scroll compressors based on refrigerant injection and release.
  • Record ID : 30001977
  • Languages: English
  • Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
  • Publication date: 2011/08/21

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