Simulation Study on Correction Factor for Changing of Power Range Neutron Flux Rate of NPP Nuclear Instrumentation System

ZHANG Ying; CHEN Zhi; WANG Shu; SUN Jian

Mar. 2025

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Article Navigation > Nuclear Power Engineering > 2012 > 33(6): 42-45,60

ZHANG Ying, CHEN Zhi, WANG Shu, SUN Jian. Simulation Study on Correction Factor for Changing of Power Range Neutron Flux Rate of NPP Nuclear Instrumentation System[J]. Nuclear Power Engineering, 2012, 33(6): 42-45,60.

Citation:

ZHANG Ying, CHEN Zhi, WANG Shu, SUN Jian. Simulation Study on Correction Factor for Changing of Power Range Neutron Flux Rate of NPP Nuclear Instrumentation System[J]. Nuclear Power Engineering, 2012, 33(6): 42-45,60.

Citation:

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Simulation Study on Correction Factor for Changing of Power Range Neutron Flux Rate of NPP Nuclear Instrumentation System

Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610041, China

Received Date: 2011-09-08
Rev Recd Date: 2011-11-09

Available Online: 2025-03-08

Abstract

Abstract

The change rate of neutron flux in nuclear power plant（NPP） nuclear instrumentation system is an important protection parameter.If the parameter is corrected properly,the reactor trip function not only can be carried out normally in rod ejection accident and rod drop accident,but also the economic effect can be assured by avoiding reactor trip at the houseload rejection operation condition.The basic correction theory is explained in this paper.Furthermore,the paper uses the Ling’ao phase II NPP project and Qinshan phase II NPP extension project as examples and discusses the basic simulation study method of correction factor for the change rate of the neutron flux by the simulation analysis tools.The study result is applied successfully in tests on site.
- Nuclear instrumentation system,
- Change rate of Neutron flux,
- Correction,
- Simulation study