横向波纹管强化传热研究与应用.pdfVIP

上 海 理 工 大 学 学 报 26 3 J. Universit of Shanghai for Science and T echnolog Vol. 26 No. 3 2004 : 1007- 6735( 2004) 03- 0239- 04 1 2 徐 波, 冯殿义 ( 1. , 200093; 2. , 121001) : 分析了横向波纹管强化传热的原理, 通过理论分析与实验研究建立了冷凝传热 系数的计 算式, 并以此为依据, 设计出高效节能的波纹管换热器. 实践证明各项参数达到设计要求. : 换热器; 波纹管; 强化传热; 应用研究 : T Q 05 1. 5 : A Study on enhancement of heat exchanger with transverse bellows 1 2 XU Bo , FENG Dian i (1. College of Power Engineering, University of Shanghaif or Science and Technology, Shanghai 200093, China; 2. ep artment of Mechanical Engineering and Automation, Liaoning Institute of Technology, Jinzhou121001, China) Abstract: T he principle on enhancement of heat ex changer w ith transverse bellows is anal zed. The mathematical model is established, the formula is derived for calculating condensation heat transfer co efficient and is checked up b experiment . According to the results in the paper, it is show n that the to tal heat transfer coefficient of bellow s is 1. 8~ 2. 0 times as large as that of ordinar tube in the non phase change condition and is raised to 2~ 3 times in the phase change condition. Namel , bellows ex changer enhances the heat transfer efficienc . T hen a high efficient heat exchanger is designed. It is proved to be all right in practice. Key words: heat exchanger; bellows; enhancement of heat transf er; research in app lication , , . . . 1 , , 1. 1 . , , . , , , , , , . ,