Experimental investigation on a pulsating heat pipe with hydrogen

[摘要] The pulsating heat pipe (PHP) has been increasingly studied in cryogenic application, for its high transfer coefficient and quick response. Compared with Nb3Sn and NbTi, MgB2whose critical transformation temperature is 39 K, is expected to replace some high-temperature superconducting materials at 25 K. In order to cool MgB2, this paper designs a Hydrogen Pulsating Heat Pipe, which allows a study of applied heat, filling ratio, turn number, inclination angle and length of adiabatic section on the thermal performance of the PHP. The thermal performance of the hydrogen PHP is investigated for filling ratios of 35%, 51%, 70% at different heat inputs, and provides information regarding the starting process is received at three filling ratios.

[发布机构] Institute of Cryogenics and Refrigeration, Zhejiang University, Hangzhou; 310027, China^1;Key Laboratory of Refrigeration and Cryogenic Technology of Zhejiang Province, Hangzhou; 310027, China^2;Department of Mechanical Engineering, University of Wisconsin Madison, Madison; 53706, United States^3

[效力级别] 物理学 [学科分类] 材料科学（综合）

[关键词] Critical transformation temperature;Cryogenic applications;Experimental investigations;High-temperature superconducting materials;Inclination angles;Pulsating heat pipe;Thermal Performance;Transfer coefficient