Nucleate boiling of two and three-component mixtures

• Published in: International journal of heat and mass transfer Vol. 47; no. 21; pp. 4637 - 4648
• Main Authors: Fujita, Yasunobu, Tsutsui, Masayuki
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.10.2004; Elsevier
• Subjects: Applied sciences; Correlation; Energy; Energy. Thermal use of fuels; Exact sciences and technology; Heat transfer; Mixtures; Pool boiling; Theoretical studies. Data and constants. Metering; Two- and three-components; Two- and three-components; Correlation; Mixtures; Pool boiling; Heat transfer; Binary mixture; Volume boiling; Ternary mixture; Instrumentation; Nucleate boiling; Heat transfer coefficient; Copper; Experimental study; Refrigerant fluid
• ISSN: 0017-9310; 1879-2189
• DOI: 10.1016/j.ijheatmasstransfer.2003.09.039

For three pure fluids and their two- and three-component mixtures, heat transfer coefficients were measured in nucleate pool boiling on the upward facing copper surface of 40 mm diameter. The more-, moderate- and less-volatile components in mixtures are refrigerants R-134a, R-142b and R-123, respectively. Heat transfer coefficients of mixtures were less than the interpolated heat transfer coefficients between pure components, with more reduction at higher heat flux. Two correlations originally developed for two-component mixtures by Thome and Shakir and by Fujita and Tsutsui reproduced well the measured heat transfer coefficients of three- as well as two-component mixtures. This result implies that the boiling range included in the correlations accounts for heat transfer reduction in mixture boiling.