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Potential for improving efficiency by controlling subcooling in residential A/C system.

Number: pap. 2387

Author(s) : XU L., HRNJAK P.

Summary

This paper presents effects of subcooling in condenser on efficiency of residential A/C systems in steady-state. To explore these effects, a system model with detailed component models was developed. The model was validated using experiments conducted on a typical 3 Ton (10.5 kW) system that used R410A. After validation, the model was used to evaluate the effects of subcooling in a range of operating conditions and several condenser sizes. The model results indicate that subcooling control can improve the system efficiency up to 8% for a given operating condition. Also, the improvements in efficiency are affected by condenser size. Smaller size of condenser results in greater potential for improvements. In addition, this paper presents a control strategy for achieving COP or cooling capacity Q maximizing subcooling as conditions vary.

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Pages: 10 p.

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Details

  • Original title: Potential for improving efficiency by controlling subcooling in residential A/C system.
  • Record ID : 30013476
  • Languages: English
  • Source: 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2014/07/14

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