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 ›› 2007, Vol. 18 ›› Issue (3): 186 doi: 10.1016/S1001-8042(07)60044-X

• MISCELLANEOUS • Previous Articles    

Analysis on natural circulation capacity of the CARR

TIAN Wenxi1* QIU Suizheng1 WANG Jiaqiang1 SU Guanghui1 JIA Dounan1 ZHANG Jianwei2   

  1. 1Department of Nuclear Science and Technology, Xi’an Jiaotong University,Xi’an 710049, China;
    2Department of Nuclear Reactor Engineering Design, China Institute of Atomic Energy, Beijing 102413, China
TIAN wenxi QIU Suizheng WANG Jiaqiang SU Guanghui JIA Dounan ZHANG Jianwei. Analysis on natural circulation capacity of the CARR.Nuclear Science and Techniques, 2007, 18(3): 186     doi: 10.1016/S1001-8042(07)60044-X

Abstract: The investigation on natural circulation (NC) characteristics of the China Advanced Research Reactor( CARR) is very valuable for practical engineering application and also a key subject for the CARR. In this study, a computer code was developed to calculate the NC capacity of the CARR under different pool water temperatures. Effects of the pool water temperature on NC characteristics were analyzed. The results show that with increasing pool water temperature, the NC flow rate increases while the NC capacity decreases. Based on the computation results and theoretical deduction, a correlation was proposed on predicting the relationship between the NC mass flow and the core power under different conditions. The correlation prediction agrees well with the computational result within ±10% for the maximal deviation. This work is instructive for the actual operation of the CARR.

Key words: China Advanced Research Reactor, Natural circulation capacity, Steady state characteristics