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Development of a high efficiency dual compressor for air conditioner.

Number: pap. n. C7, 1284

Author(s) : HIRANO K., SHIDA S., TOMINAGA T., et al.

Summary

Recently, residences with high heat insulation have been increasing in number. Air conditioners in these residences are therefore often operated with comparatively small air conditioning load. And the energy saving guideline index for air conditioners has been changed from the coefficient of performance (COP) measured during rated operation to the annual performance factor (APF) in Japan. In response to these changes, the authors have developed a new dual compressor adopting variable cylinder system, which can stop one of two cylinders. Additionally to improve efficiency they adopted an optimized suction piping structure, crank-pin diameter reduction, and high-density winding. These new technologies realize high efficient operation in wide range and an air-conditioner in which this new compressor was installed could be reduced by 44% at power consumption compared with a twin-rotary in low load. Addition, the seasonal power consumption used in "actual" air-conditioner operating environments can be decreased by 22% to 85% during the cooling load and by 7% to 38% during the heating load by effect of intermittent operation.

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Pages: 8 p.

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Details

  • Original title: Development of a high efficiency dual compressor for air conditioner.
  • Record ID : 30001334
  • Languages: English
  • Source: 2010 Purdue Conferences. 20th International Compressor Engineering Conference at Purdue.
  • Publication date: 2010/07/12

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