Development of kind of heat transfer coefficient sensor based on steady method
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摘要: 基于稳态方法研制出一种对流换热系数传感器.在研究中引入一个标定端,并分析其精度,与经典的经验公式进行了对比.通过标定实验验证了此传感器的可行性,得到修正系数值 K ,修正后传感器测量值与标准值的相对误差范围为0.4%~1.7%,不同传感器的K值不同.Abstract: A kind of heat transfer coefficient sensor based on steady state method was developed. A calibration terminal was pulled. The precision was analyzed and the results were compared with the values calculated from the classics empirical equation. The heat transfer coefficient obtained from the calibration terminal and the empirical equation is in a good agreement. The results shows that the calibration method is reasonable. The feasibility of the sensor is proved by the calibration experiment and the modified coefficient K is obtained. The relative error range is from 0.4% to 1.7% between the measured values and standard values. The values of K of separate sensors are different.
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Key words:
- steady state /
- heat transfer coefficient /
- sensor
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[1] Harris M B, Willix J, Lovatt S J. Development of a method for measuring local heat transfer coefficients on carcass shaped objects //In Proceedings of the 21st International Congress of Refrigeration. Washington, DC: International Institute of Refrigeration, 2003 [2] Han Ilyoung, Kim Dongkwon, Kim Sungjin. Study on the transient characteristics of the sensor tube of A thermal mass flow meter [J]. International Journal of Heat and Mass Transfer, 2005, 48: 2583-2592 [3] Delaplace G, Demeyre J F. Determination of representative and instantaneous process side heat transfer coefficients in agitated vessel using heat flux sensors [J]. Chemical Engineering and Processing ,2005, 44: 993-998 [4] Amarante A, Lanoiselle J L. Heat transfer coefficients measurement in industrial reezing equipment by using heat flux sensors [J]. Journal of Food Engineering, 2005, 66: 377-386 [5] 徐国强,陶智,丁水汀.一种对流换热系数的测试方法及其对流换热系数传感器:中国, 200410074334.x Xu Guoqiang, Tao Zhi, Ding Shuiting. A test method of heat transfer coefficient and a kind of heat transfer coefficient sensor: China, 200410074334.x -
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