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《Experimental Technology and Management》 2018-10
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Improvement of experimental teaching device for heat transfer characteristics of air across circular tubes

Sheng Jian;Dou Binlin;Hou Hao;Yang Hengfu;Liu Xuyang;Yuan Hongwei;National Experimental Teaching Demonstration Center for Energy and Power Engineering,University of Shanghai for Science and Technology;  
The shortcomings of a self-built experimental device for heat transfer characteristics of the air across circular tube surface are analyzed and improved.It is found that although the air gap between the electric heating tube and the heat exchanging tube is small,it is the key factor which causes the inaccuracy of the experimental results,the inefficiency of the experimental operation and the high maintenance cost by the frequent burning of the electric heating tube.The air gap is filled with the high temperature thermal conductive inorganic adhesive C2,and the experimental results show that the wall temperature of the electric heating pipe decreases greatly,and the safety and service life of the electric heating pipe increases greatly.The error of the calculated C and N values is reduced,and the steady time is shortened.
【Fund】: 上海市地方高校能力建设项目(18060502600);; 上海理工大学教师教学发展研究项目(CFTD17002Y)
【CateGory Index】: TK124-4
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