非共沸制冷剂在逆流换热器中温度窄点出现的判别方法

作     者：金星 张小松 JIN Xing;ZHANG Xiaosong

作者机构：东南大学能源与环境学院江苏南京210096 

出 版 物：《化工学报》 (CIESC Journal)

年 卷 期：2009年第60卷第4期

页      面：848-854页

核心收录：

学科分类：080705[工学-制冷及低温工程] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 0703[理学-化学] 

基　　金：国家科技支撑计划项目(2008BAJ12B00) 东南大学优秀博士学位论文基金项目(YBJJ0814)~~ 

主　　题：非共沸制冷剂 温度滑移 窄点 

摘      要：Pinch point and maximum temperature difference may occur in heat exchanger because of the non-linear relationship between the temperature and enthalpy of the zeotropic refrigerant mixtures in the two-phase *** discriminant used to identify the pinch point or maximum temperature difference was presented by Venkatarathnam,but the discriminant can not be used to identify all the kinds of zeotropic refrigerant *** modified discriminant used to identify the pinch point and maximum temperature difference was obtained in this paper,which was proved by analyzing two zeotropic refrigerant *** results showed the possible concurrence of pinch point and maximum temperature difference in the heat exchanger.