Study of amplification coefficient in a water-cooling Gardon-type heat power measuring apparatus  

作　　者：Li Miao Li Yunze Zhang Hongsheng Wang Shengnan Li Yunhua Liu Jia 

机构地区：[1]School of Automation Science and Electrical Engineering, Beihang University [2]School of Aeronautic Science and Engineering, Beihang University [3]China Dfh Satellite Co., Ltd.

出　　处：《Chinese Journal of Aeronautics》2015年第2期410-417,共8页中国航空学报（英文版）

基　　金：partly supported by the National Basic Research Program of China (2014CB046403)

摘　　要：A new water-cooling Gardon-type heat power measuring apparatus is designed to meet the need of heat power source management and distribution. The steady state measurement mathe- matic model of the apparatus is built up in theory and the system amplification coefficient is defined as the ratio of the heat power to the temperature difference of the device, with which the value of the measured source power can be calculated easily with the corresponding temperature difference. In order to obtain an optimal heat power measuring system, the coefficients that can influence the relationship between the amplification coefficient, the temperature difference, and the heat power are analyzed. On the basis of these analyses, a set of experimental device is constructed and a num- ber of experiments are carried on. Compared with the input heat power sample data, the error of the experimental measuring results is less than 4-2%, and the experimental measuring values are in good agreement with the calculated theoretical ones. The heat power measuring apparatus can be applied in heat flux or heat power measurement in other fields due to its simple structure and high accuracy.A new water-cooling Gardon-type heat power measuring apparatus is designed to meet the need of heat power source management and distribution. The steady state measurement mathe- matic model of the apparatus is built up in theory and the system amplification coefficient is defined as the ratio of the heat power to the temperature difference of the device, with which the value of the measured source power can be calculated easily with the corresponding temperature difference. In order to obtain an optimal heat power measuring system, the coefficients that can influence the relationship between the amplification coefficient, the temperature difference, and the heat power are analyzed. On the basis of these analyses, a set of experimental device is constructed and a num- ber of experiments are carried on. Compared with the input heat power sample data, the error of the experimental measuring results is less than 4-2%, and the experimental measuring values are in good agreement with the calculated theoretical ones. The heat power measuring apparatus can be applied in heat flux or heat power measurement in other fields due to its simple structure and high accuracy.

关 键 词：Amplification coefficient Gardon-type Heat flux Heat power Measuring apparatus Water-cooling 

分 类 号：V416[航空宇航科学与技术—航空宇航推进理论与工程]