Application of entransy dissipation based thermal resistance to design optimization of a novel finless evaporator

作     者：HUANG ZhiWei LI ZhenNing HWANG Yunho RADERMACHER Reinhard 

作者机构：Center for Environmental Energy Engineering School of Engineering University of Maryland 

基　　金：supported by the sponsors of the Energy Efficiency and Heat Pumps Consortium and Modeling and Optimization Consortium at the Center for Environmental Energy Engineering(CEEE)of the University of Maryland and Heat Transfer Technologies LLC for manufacturing the heat exchanger prototype 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2016年第59卷第10期

页      码：1486-1493页

摘      要：Entransy has been applied and studied in a broad range of heat transfer optimizations recently. Current study proposes the entransy of evaporators to conduct the optimization of heat exchangers in heating, ventilation, air conditioning and refrigeration systems. A novel finless bare tube heat exchanger was studied using a validated heat exchanger modeling tool. The capacity based optimization and entransy dissipation based thermal resistance were used and compared. The applicability of using entransy dissipation based thermal resistance in this type of heat exchanger optimization has been discussed. It has been demonstrated that minimizing entransy dissipation and maximizing capacity are equivalent to optimizing evaporators with fixed flow rates and different when optimizing evaporators with variable flow rates and the deviation is negligible when heat exchanger capacity is small(~1 k W) and more obvious as heat exchanger capacity increases. Thus entransy dissipation based thermal resistance could be used as an alternative optimization index to capacity for evaporators with fixed flow rate and small capacity evaporators with variable flow rates and should be used individually with capacity as an optimization index for evaporators with large capacity and variable flow rates.

主 题 词：小型蒸发器 热优化 耗散 热阻 应用 江豚 设计 最大容量 

学科分类：0810[工学-土木类] 080702[080702] 07[理学] 08[工学] 070601[070601] 0807[工学-电子信息类] 0805[工学-能源动力学] 0706[理学-大气科学类] 0702[理学-物理学类] 0812[工学-测绘类] 

核心收录：

D　O　I：10.1007/s11431-016-0312-3

馆 藏 号：203194449...