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The development of a high-heating capacity heat pump with two compressors of different capacities.

Author(s) : HWANG Y. J., LEE W. H., CHOI C. M., et al.

Summary

A heat pump driven by two compressors with different capacities was developed to improve seasonal energy efficiency in cooling and increase capacity in heating by using high efficiency components and a load matching algorithm. A cycle configuration for the two-compressor system was designed for optimum capacity modulation without mal-distribution of refrigerant oil and vibration-free connecting compressor pipes. An indoor temperature control algorithm based on human comfort studies was also developed to improve energy efficiency. As a result, the seasonal energy efficiency increased by 33% based on ARI standard 210/240, when compared with the conventional heat pump of same rated cooling capacity. If this achievement is converted to electric power consumption, the authors confirm that the monthly electric power consumption decreases by 26% with the new system. The heating capacity increased by 15%, so it should be possible to satisfy heating loads; the system is comparable to inverter heat pump system.

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Details

  • Original title: The development of a high-heating capacity heat pump with two compressors of different capacities.
  • Record ID : 2005-0419
  • Languages: English
  • Source: 21st IIR International Congress of Refrigeration: Serving the Needs of Mankind.
  • Publication date: 2003/08/17

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