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CONDENSING COEFFICIENTS WHEN USING REFRIGERANT MIXTURES.

Author(s) : STOECKER W. F., KORNOTA E.

Summary

THE HEAT TRANSFER COEFFICIENT OF NON-AZEOTROPIC MIXTURES SHOULD IDEALLY BE MAINTAINED AS HIGH AS THAT OF THE SINGLE REFRIGERANT. RESEARCH ON CONDENSING COEFFICIENTS INDICATE A REDUCTION IN THE COEFFICIENT WHEN USING A MIXTURE. THE PRINCIPAL REDUCTION OCCURS IN THE MIDRANGE OF THE CONDENSER. OBSERVATIONS INDICATE THAT THE FLOW IS STRATIFIED IN THIS REGION. IT MAY BE POSSIBLE TO PREVENT THE REDUCTION IN THE COEFFICIENT BY INSTALLING TURBULENCE PROMOTERS OR CIRCUITING THE CONDENSER TO ACHIEVE HIGHER VELOCITIES IN THIS REGION OF THE CONDENSER.

Details

  • Original title: CONDENSING COEFFICIENTS WHEN USING REFRIGERANT MIXTURES.
  • Record ID : 1987-0054
  • Languages: English
  • Publication date: 1985
  • Source: Source: ASHRAE Trans.
    vol. 91; n. 2B; 1351-1367; 20 fig.; 4 tabl.; 2 ref.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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