Extrapolaion Modification of Physical Start-up of Reactors

DAI Qian-jin; ZHANG Jiao; ZHAN Yong-jie; PAN Ze-fei; YE Guo-dong

Volume 31 Issue 6

Dec. 2010

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Article Navigation > Nuclear Power Engineering > 2010 > 31(6): 93-95,101

DAI Qian-jin, ZHANG Jiao, ZHAN Yong-jie, PAN Ze-fei, YE Guo-dong. Extrapolaion Modification of Physical Start-up of Reactors[J]. Nuclear Power Engineering, 2010, 31(6): 93-95,101.

Citation:

DAI Qian-jin, ZHANG Jiao, ZHAN Yong-jie, PAN Ze-fei, YE Guo-dong. Extrapolaion Modification of Physical Start-up of Reactors[J]. Nuclear Power Engineering, 2010, 31(6): 93-95,101.

DAI Qian-jin, ZHANG Jiao, ZHAN Yong-jie, PAN Ze-fei, YE Guo-dong. Extrapolaion Modification of Physical Start-up of Reactors[J]. Nuclear Power Engineering, 2010, 31(6): 93-95,101.

Citation:

DAI Qian-jin, ZHANG Jiao, ZHAN Yong-jie, PAN Ze-fei, YE Guo-dong. Extrapolaion Modification of Physical Start-up of Reactors[J]. Nuclear Power Engineering, 2010, 31(6): 93-95,101.

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Extrapolaion Modification of Physical Start-up of Reactors

Nuclear Power Qinshan Joint Venture Company Limited, Haiyan, Zhejiang, 314300, China

Received Date: 2009-09-23
Rev Recd Date: 2010-05-05

Available Online: 2025-07-31

Publish Date: 2010-12-01

Abstract

Abstract

The result of extrapolation is very important to the physical start-up,and it is used to control the speed and quantity of the reactivity.Using the neutron multiplication formula for active and sub-critical condition,the non-balance situation of neutron counts,the dilution,and the lifting of banks are analyzed.The results show that the delayed effect of dilution,the non-linearity of the integral worth of the control rods,and the non-linear increase of the flux have great effects on the accuracy of the extrapolation.We consider those effects and give some advices on the modification of the extrapolation.
- PWR,
- Physical start-up,
- Extrapolation,
- Modification