Analysis of prompt supercritical process with heat transfer and temperature feedback

Analysis of prompt supercritical process with heat transfer and temperature feedback 1 2 corresp first-author Corresponding author. E-mail address: zhubowy@163.com Corresponding author. E-mail address: zhubowy@163.com zhubowy@163.com 2 2 School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China Department of Nuclear Science and Engineering, Naval University of Engineering, Wuhan 430033, China Department of Nuclear Science and Engineering, Naval University of Engineering, Wuhan 430033, China The prompt supercritical process of a nuclear reactor with temperature feedback and initial power as well as heat transfer with a big step reactivity ( ρ 0 > β ) is analyzed in this paper. Considering the effect of heat transfer on temperature of the reactor, a new model is set up. For any initial power, the variations of output power and reactivity with time are obtained by numerical method. The effects of the big inserted step reactivity and initial power on the prompt supercritical process are analyzed and discussed. It was found that the effect of heat transfer on the output power and reactivity can be neglected under any initial power, and the output power obtained by the adiabatic model is basically in accordance with that by the model of this paper, and the analytical solution can be adopted. The results provide a theoretical base for safety analysis and operation management of a power reactor. Neutron kinetics Prompt supercritical process Point reactor Temperature feedback Heat transfer References Zhang F B . Operating physics of nuclear reactor . Beijing : Atomic Energy Press (in Chinese) , 2002 : 31 - 236 . Operating physics of nuclear reactor CAI Zhangsheng , Nuclear power reactor neutron dynamics . Beijing : National Defence Industry Press (in Chinese) , 2005 : 97 - 109 . Nuclear power reactor neutron dynamics CAI Zhangsheng , CAI Zhiming , CHEN Lisheng . J Naval Univ Eng (in Chinese) , 2000 , 12 ( 3 ): 25 - 27 . J Naval Univ Eng (in Chinese) CAI Zhangsheng , CAI Zhiming , CHEN Lisheng . Nucl Power Eng (in Chinese) , 2001 , 22 ( 5 ): 390 - 393 . Nucl Power Eng (in Chinese) Aboanber A E , Hamada Y M . Ann Nucl Energy , 2003 , 30 : 1111 - 1122 . Ann Nucl Energy Aboanber A E . Prog Nucl Energy , 2004 , 44 ( 4 ): 347 - 368 . Prog Nucl Energy Nahla A A . Prog Nucl Energy , 2009 , 51 : 124 - 128 . Prog Nucl Energy Sathiyasheela T . Ann Nucl Energy , 2009 , 36 : 246 - 250 . Ann Nucl Energy CHEN Wenzhen , KUANG Bo , GUO Lifeng , et al . Nucl Eng Design , 2006 , 236 : 1326 - 1329 Nucl Eng Design CHEN Wenzhen , GUO Lifeng , ZHU Bo , et al . Prog Nucl Energy , 2007 , 49 ( 4 ): 290 - 302 . Prog Nucl Energy LI Haofeng , CHEN Wenzhen , LUO Lei , et al . Ann Nucl Energy , 2009 , 36 : 427 - 432 . Ann Nucl Energy 10.13538/j.1001-8042/nst.20.317-320 Supported by the National Natural Science Foundation of China (No. 10575131) 2009-05-06 2009-10-20 2021-01-19 2009 Nuclear Science and Techniques 05 20