NUCLEAR ENERGY AND NEW ENERGY |
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HTR-PM helium circulator motor cooling |
MO Fei, ZHANG Youjie, WANG Hong, ZHANG Qinzhao |
Key Laboratory of Advanced Reactor Engineering and Safety, Ministry of Education, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China |
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Abstract The helium circulator is an important part of the HTR-PM which uses helium as its working medium. Due to the limited space in the HTR-PM, the main helium fan uses a self-contained, air-cooled integrated structure to remove the motor heat. The auxiliary impeller design is then based on the flow characteristics and heat transfer characteristics of the motor cooling flow. Experiments using nitrogen as the working fluid were conducted to study the flow and heat transfer characteristics of the HTR-PM air-cooling system with the results extended to the helium working fluid. The experimental and theoretical results were used to optimize the cooling system design for the next HTR-PM main helium turbine auxiliary impeller design and optimization.
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Keywords
gas-cooled reactor
helium circulator
cooling system
thermal properties
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Issue Date: 15 February 2018
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