| NUCLEAR ENERGY AND NEW ENERGY |
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Thermodynamic analysis and optimization of helium turbine cycle of commercial high temperature gas-cooled reactor |
| QU Xinhe, YANG Xiaoyong, WANG Jie |
| Institute of Nuclear and New Energy Technology of Tsinghua University, Collaborative Innovation Center of Advanced Nuclear Energy Technology, the Key Laboratory of Advanced Reactor Engineering and Safety, Ministry of Education, Beijing, 100084, China |
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Abstract With gradual increase in reactor outlet temperature, the efficient power conversion technology has become one of developing trends of (very) high temperature gas-cooled reactor. Based on the HTR-10, HTR-10GT and HTR-PM, aiming at a higher reactor outlet temperature (ROT), the paper analyzes, optimizes and designs the thermodynamic parameters of the helium turbine cycle of high temperature gas-cooled reactor. Two proposed operating points are determined by the optimization model combined with the constrints of engineering experience. One of these working points is close to the current engineering experiences, inherited the design experience of the helium compressor and turbine of the HTR-10GT. Its ROT is 850℃, the cycle pressure ratio is 2.47, and the cycle efficiency is 47.60%. Another working point is slightly forward-looking. Its ROT is 900℃, the reactor inlet temperature is 550℃, the cycle pressure ratio is 2.75, and the cycle efficiency is 48.92%. And based on these two working points the HTGR helium cycle parameters have been designed. It would be helpful to develop a closed Brayton cycle coupled with a high temperature reactor in the future.
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| Keywords
high temperature gas-cooled reactor (HTGR)
closed Brayton cycle
helium turbine
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Issue Date: 15 October 2017
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2017,
Vol. 57
