Abstract
An experimental study on the saturated flow boiling heat transfer for a binary mixture of R290/R152a at various compositions is conducted at pressures ranging from 0.2 to 0.4 MPa. The heat transfer coefficients are experimentally measured over mass fluxes ranging from 74.1 to 146.5 kg/(m2·s) and heat fluxes ranging from 13.1 to 65.5 kW/m2. The influences of different parameters such as quality, saturation pressure, heat flux, and mass flux on the local heat transfer coefficient are discussed. Existing correlations are analyzed. The Gungor-Winterton correlation shows the best fit among experimental data for the two pure refrigerants. A modified correlation for the binary mixture is proposed based on the authors’ previous work on pool boiling heat transfer and the database obtained from this study. The result shows that the total mean deviation is 10.41% for R290/R152a mixtures, with 97.6% of the predictions falling within ±30%.
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Zou, X., Gong, M., Chen, G. et al. Experimental study on saturated flow boiling heat transfer of R290/R152a binary mixtures in a horizontal tube. Front. Energy Power Eng. China 4, 527–534 (2010). https://doi.org/10.1007/s11708-010-0109-7
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DOI: https://doi.org/10.1007/s11708-010-0109-7