A model for calculating heat transfer coefficient concerning ethanol-water mixtures condensation
The attempt of the author in this research is made to calculate a heat transfer coefficient (HTC) by combining the filmwise theory with the dropwise notion for ethanol-water mixtures condensation. A new model, including ethanol concentration, vapor pressure and velocity, is developed by introducing a characteristic coefficient to combine the two mentioned-above theories. Under different concentration, pressure and velocity, the calculation is in comparison with experiment. It turns out that the calculation value is in good agreement with the experimental result; the maximal error is within ± 30.1％. In addition, the model is applied to calculate related experiment in other literature and the values obtained agree well with results in reference.
Marangoni condensation ethanol-water mixtures calculation model heat transfer dropwise condensation
J.S.Wang J.J.Yan S.H.HU Y.S.Yang
State Key Laboratory of Multiphase Flow in Power Engineering, Xian Jiaotong University, Xian, China
国际会议
西安
英文
367-373
2009-07-11（万方平台首次上网日期，不代表论文的发表时间）