-60℃低温冷库传热系数测量试验研究  

The research on measurement of heat transfer coefficient for low temperature cold storage

作　　者：张朝辉[1] 刘训海[1] 刘鹏[1] 周健健[1] 

机构地区：[1]上海理工大学

出　　处：《制冷与空调》2006年第5期58-60,57,共4页Refrigeration and Air-Conditioning

基　　金：上海市重点学科建设项目资助(T0503)

摘　　要：简述对于低温冷库传热系数测量所采用的一般方法,采用稳态法对一低温试验冷库进行实验,然后通过非稳态积分法对试验数据进行验证。针对冷风机电机功率较大的特点,本实验采用变频器将电机功率调小,从而得出该低温试验冷库的传热系数,并与理论计算的数据进行对比,找出存在差异的原因。States some basic methods of heat transfer coefficient measurement, uses and steady method to measure a low temperature cold storage, and verifies experimental data through unsteady integral method. In order to avoid the disadvantage of high power of the cold fan, using frequency inverter to diminish the power and heat transfer coefficient is achieved. Then compares the data to those which achieved through theoretical calculation and finds the cause of the difference.

关 键 词：稳态法 非稳态积分法 传热系数 冷库 

分 类 号：TB657.1[一般工业技术—制冷工程]