CIESC Journal ›› 2020, Vol. 71 ›› Issue (11): 5099-5106.DOI: 10.11949/0438-1157.20200194

• Fluid dynamics and transport phenomena • Previous Articles     Next Articles

Startup and isothermal performance of high-temperature molten salt heat pipe

Gang WANG1(),Yaxuan XIONG1(),Yuting WU2,Peng XU1,Guanghui LENG3,Chongfang MA2   

  1. 1.Beijing Key Laboratory of Heating, Gas Supply, Ventilating and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
    2.Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Ministry of Education, Beijing University of Technology, Beijing 100124, China
    3.Henan Dongda High Temperature Energy-Saving Material Co. , Ltd. , Hebi 458030, Henan, China
  • Received:2020-02-07 Revised:2020-06-28 Online:2020-11-05 Published:2020-11-05
  • Contact: Yaxuan XIONG

高温熔盐热管的启动和等温性能

王刚1(),熊亚选1(),吴玉庭2,徐鹏1,冷光辉3,马重芳2   

  1. 1.北京建筑大学供热供燃气通风及空调工程北京市重点实验室,北京 100044
    2.北京工业大学传热强化与过程节能教育部重点实验室,北京 100124
    3.河南东大高温节能材料有限公司,河南 鹤壁 458030
  • 通讯作者: 熊亚选
  • 作者简介:王刚(1985—),男,讲师,wanggang@bucea.edu.cn
  • 基金资助:
    国家自然科学基金项目(51206004);北京市自然科学基金重点项目(3151001);鹤壁市重大创新专项

Abstract:

High-temperature heat pipe is the key technology for efficient heat transfer in high-temperature fields. To develop high efficiency heat pipes further and improve the heat transfer performance in industrial process, gravity heat pipes with molten salt as heat transfer medium was developed. A high-temperature heat pipe test bench was set up and effect of working fluids and inclination angles on the startup characteristics and isothermal performance of the gravity heat pipe was studied experimentally. The results showed that as the inclination angle was 45° and 60°, the startup characteristics of heat pipes with AlBr3 and TiCl4 as working fluids was the best respectively, while the isothermal performance of the heat pipes was the best as the inclination angle was 60°. The inorganic salts AlBr3 and TiCl4 are used as the heat transfer working medium, and the gravity heat pipe has good starting and isothermal properties.

Key words: molten salt, heat pipe, condensation, transport, startup

摘要:

高温热管是高温领域高效传热的关键技术。为进一步研究开发高效热管,提升工业过程传热性能,以熔盐作为热管的传热工质,搭建了高温热管传热实验台,研究了传热工质和倾斜角对热管启动和等温性能的影响。结果表明,在450~700 K工作温度范围内,AlBr3和TiCl4熔盐热管在倾斜角为45°和60°的条件下,均达到最优的启动性能;在热管倾斜角为60°时,两种熔盐热管等温性能均达到最佳。无机盐AlBr3和TiCl4作为传热工质,重力热管具有良好的启动和等温性能。

关键词: 熔盐, 热管, 凝结, 传递, 启动

CLC Number: