Flow Boiling of R 134 a in Circular Microtubes — Part I : Study of Heat Transfer Characteristics

  • Saptarshi Basu Sidy Ndao, Gregory J. Michna, Yoav Peles Michael K. Jensen
  • Published 2011
An experimental study of two-phase heat transfer coefficients was carried out using R134a in uniformly heated horizontal circular microtubes with diameters from 0.50 mm to 1.60 mm over a range of mass fluxes, heat fluxes, saturation pressures, and vapor qualities. Heat transfer coefficients increased with increasing heat flux and saturation pressure but… CONTINUE READING