Study of evaporation heat transfer coefficient correlations at low heat and mass fluxes for pure refrigerants and refrigerant mixtures

Mark K Smith, Jon P. Wattelet, Ty A. Newell

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An average, R12 evaporative heat transfer refrigerant correlation has been developed for the mass flux range of 25-100 kg/m2-s and the heat flux range of 2-10 kW/m2. Local correlations for the refrigerant mixtures 65% R22/35% R123 and 80% R22/20% R141b have been developed for the respective mass flux ranges of 25-85 and 27-42 k/m2-s and heat flux ranges of 1.2-2.8 and 1.0-4.2 kW/m2. The mixtures heat transfer coefficients were approximately 50% lower than the predicted R12 coefficients for overlapping ranges of mass and heat flux. The pure refrigerant data were gathered in a horizontal tube test stand. The mixture data were gathered by performing an energy balance about a full evaporator.

Original languageEnglish (US)
Title of host publicationHeat Transfer with Alternate Refrigerants
PublisherPubl by ASME
Pages19-26
Number of pages8
ISBN (Print)0791811565
StatePublished - Jan 1 1993
Event29th National Heat Transfer Conference - Atlanta, GA, USA
Duration: Aug 8 1993Aug 11 1993

Publication series

NameAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume243
ISSN (Print)0272-5673

Other

Other29th National Heat Transfer Conference
CityAtlanta, GA, USA
Period8/8/938/11/93

ASJC Scopus subject areas

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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  • Cite this

    Smith, M. K., Wattelet, J. P., & Newell, T. A. (1993). Study of evaporation heat transfer coefficient correlations at low heat and mass fluxes for pure refrigerants and refrigerant mixtures. In Heat Transfer with Alternate Refrigerants (pp. 19-26). (American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD; Vol. 243). Publ by ASME.