Abstract: Assuming that vapor adsorption plays a major role during dropwise condensation, a physical model based on the coexistence of drops and film has been developed. A heat transfer coefficient correlation was derived by theoretical analysis. The comparison between theoretical calculation and experimental results of the heat transfer coefficient was quite satisfactory. The calculated results indicated that heat was mainly transferred through microdrops and the film region. The film accounted for about 15%-25% of the total area and accounted ior about 85%-95% of the total heat energy transferred.

摘要： 在分析前人提出的各种滴状冷凝传热机理的基础上,从吸附的观点出发,提出了液滴与液膜共存的滴状冷凝物理模型.以此模型为基础,通过理论分析得到了传热系数的计算式,并将理论计算结果与实验值进行了比较.