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,提出了浓滴与液膜共存的滴状冷额物理被型。以此模型为基础,通过理论分析得到了传热系数的计算式,并将星论计算结果与实验值进行了比较。
Assuming thatvapor adsorptionplays a major role during dropwise condensution,a physical model hased on the coexistence of drops and filmu has been developed.A heat transfer coefficient correlation was derived by theo-retical analysis.The comparison hetween theoretical calculation and experi-mental results of the heat transfer coefficient was quite satisfactory.The calculated results indicated that heat was mainly transferred through microdrops and the film region.Thfilm arcounted for about15%~25%of the total;trea and accounted tor anout 85%~95%of the total heat energy transterred.
作者
宋永吉
张东昌
林纪方
Song Yongji;Zhang Dongchang;Lin Jifang(Rescarch Institntr of Chemical Engineering,Dalian University of Techmolngy,Liaoning,Dallan)
出处
《化工学报》
EI
CAS
CSCD
北大核心
1990年第6期683-688,共6页
CIESC Journal
基金
国家自然科学基金资助项目
