Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2012, Vol. 23 ›› Issue (6): 321-327 doi: 10.13538/j.1001-8042/nst.23.321-327

• SYNCHROTRON TECHNOLOGY AND APPLICATIONS •     Next Articles

Heat transfer analysis of the bent cooling channels in SSRF light-blocked components

JIN Jianfeng~(1,2) CHEN Haibo~(1,*) XIAO Weiling~1 CHENG Wenlong~3 WANG Naxiu~4   

  1. 1 Department of Modern Mechanics,University of Science and Technology of China,Hefei 230027,China 2 Beijing Institute of Space Long March Vehicle,Beijing 100076,China 3 Department of Thermal Science and Energy Engineering,University of Science and Technology of China,Hefei 230027,China 4 Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Jiading Campus,Shanghai 201800,China
  • Supported by:

    Supported by Natural Science Foundation of China(10975130)

JIN Jianfeng, CHEN Haibo, XIAO Weiling, CHENG Wenlong, WANG Naxiu, . Heat transfer analysis of the bent cooling channels in SSRF light-blocked components.Nuclear Science and Techniques, 2012, 23(6): 321-327     doi: 10.13538/j.1001-8042/nst.23.321-327

Abstract:

The front end light-blocked components of the third generation of synchrotron radiation facility,which are subjected to high heat load,are cooled with flowing water through the cooling channels.The convective heat transfer coefficient and the flow resistance(or pressure drop) are two important parameters for evaluating the heat transfer performance of the cooling channels and should be strictly quantified.In this research,two typical bent cooling channels in Shanghai Synchrotron Radiation Facility(SSRF) were modeled and their in-pipe turbulent flows were simulated.The two criteria obtained under different channel water velocities met the SSRF technical requirements.To reduce the total pressure drop,arc transitions were proposed to replace the right angle transitions in the cooling channels.At the same time,an experiment was performed to measure the convective heat transfer coefficient of a typical bent channel unit.The experimental results were in good agreement with the simulation ones.

Key words: Convective heat transfer coefficient, Pressure drop, Numerical simulation, Experimental test