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HCFC-22 alternatives for air conditioners and heat pumps.

Author(s) : BIVENS D. B., SHIFLETT M. B., WELLS W. D., SHEALY G. S., YOKOZEKI A. M., PATRON D. M., KOLLIOPOULOS K. A., ALLGOOD C. C., CHISOLM T. E. C.

Summary

A family of alternatives has been developed for replacing R22 which is now used in a wide variety of applications. R134a, a ternary zeotropic mixture composed of R32-R125-R134a, and a near azeotropic mixture composed of R32-R125 are nonflammable, chlorine-free alternatives for replacing R22. The paper will compare experimental performance tests with the ternary and binary mixtures in a split system residential heat pump. Equipment modifications for improving heating capacity and energy efficiency are discussed. Energy efficiency values 3 to 6% higher than R22 are predicted for the ternary and binary mixtures based on experimental data and computer modelling.

Details

  • Original title: HCFC-22 alternatives for air conditioners and heat pumps.
  • Record ID : 1997-0695
  • Languages: English
  • Source: ASHRAE Transactions.
  • Publication date: 1995/06/24
  • Document available for consultation in the library of the IIR headquarters only.

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