Saturated flow boiling heat transfer: review and assessment of prediction methods

This paper presents a review of the correlations for saturated flow boiling heat transfer coefficients. Fifty correlations are systematically reviewed, which fall into seven categories. An experimental database for saturated flow boiling heat transfer was compiled from 67 sources. It contains 10,932 data points and covers 19 fluids, including eight pure halogenated refrigerants (R134a, R22, R123, R1234yf, R1234ze(E), R152a, R245fa, and R32), five refrigerant mixtures (R404A, R407C, R410A, R417A, and R507), four inorganic compounds (CO2, ammonia, water, and nitrogen), and two hydrocarbons (R290 and R600a). The parameter range of the database covers hydraulic diameters of 0.137-21mm, mass fluxes of 20-1500kgm(-2)s(-1), heat fluxes of 1.99-201kWm(-2), qualities of 0.001-0.999, and reduced pressures of 0.005-0.61. Fifty correlations of saturated flow boiling heat transfer coefficients are evaluated with the database, and the detail analysis of the evaluation results is performed. The work provides a guide to choosing a proper correlation for a given application and is helpful for understanding prediction methods of saturated flow boiling heat transfer coefficients.