摘要
根据以冷、热流体基准的不同,定义了两种换热器的热效率(ε),在此基础上,推导得到了换热器热效率的四种不同的表达形式,并通过一个实例说明热效率-传热单元数法(ε-NTU法)在换热器操作型计算中的应用。
Two types of thermal efficiency（ ε） of heat exchanger were defined by employing the cold and heat fluid as different references. On the basis,four different forms of expression of ε were obtained by the deduction. An example was given to illustrate the application of thermal efficiency-number of transfer units（ ε-NTU method） in the operation calculation of heat exchangers.
出处
《化工时刊》
CAS
2016年第7期13-16,共4页
Chemical Industry Times
基金
江苏省高校品牌专业建设工程资助项目
江苏师范大学教育教学课题资助项目(JYY201409)
关键词
化工原理
换热器的热效率
传热单元数
设计型计算
chemical engineering principle
thermal efficiency of heat exchanger
number of transfer units
operation calculation
