ISSN Online: 2377-424X
ISBN Print: 1-56032-797-9
International Heat Transfer Conference 11
A Prediction Model for Condensation of Ternary Refrigerant Mixtures Inside a Horizontal Smooth Tube
Abstract
This paper deals with a prediction method for the condensation of ternary refrigerant mixture inside a horizontal smooth tube. Based on some reliable assumptions, the governing equations for the local heat and mass transfer characteristics are derived, and the prediction calculation for the condensation of ternary zeotfopic refrigerant mixtures composed of HFC32/HFC125/HFC134a, including R407C, is carried out. The local values of vapor quality, thermodynamic states at bulk vapor, vapor-liquid interface and bulk liquid, mass flux etc. are obtained for a constant wall temperature and a constant wall heat flux conditions, and the effects of the composition of HFC32/HFC125/HFC134a on the heat transfer characteristics are examined. The prediction calculation is also compared with the experimental data for condensation of ternary refrigerant mixtures.