Analysis of Prompt Negative Temperature Coefficient for UraniumZirconium Hydride Fuel Element in Power Reactor

WANG Lianjie; YAO Dong; CHEN Bingde

Volume 29 Issue 5

Oct. 2008

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WANG Lianjie, YAO Dong, CHEN Bingde. Analysis of Prompt Negative Temperature Coefficient for UraniumZirconium Hydride Fuel Element in Power Reactor[J]. Nuclear Power Engineering, 2008, 29(5): 25-28.

Citation:

WANG Lianjie, YAO Dong, CHEN Bingde. Analysis of Prompt Negative Temperature Coefficient for UraniumZirconium Hydride Fuel Element in Power Reactor[J]. Nuclear Power Engineering, 2008, 29(5): 25-28.

WANG Lianjie, YAO Dong, CHEN Bingde. Analysis of Prompt Negative Temperature Coefficient for UraniumZirconium Hydride Fuel Element in Power Reactor[J]. Nuclear Power Engineering, 2008, 29(5): 25-28.

Citation:

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Analysis of Prompt Negative Temperature Coefficient for UraniumZirconium Hydride Fuel Element in Power Reactor

National Key Laboratory of Reactor System Design Technology, Nuclear Power Institute of China, Chengdu, 610041, China

Received Date: 2007-04-17
Rev Recd Date: 2007-06-18
Publish Date: 2008-10-15

Abstract

Abstract

The effects of weight percentage of uranium, fuel rod radius, fuel temperature, hydrogen content and additional poison on prompt negative temperature coefficient for uranium zirconium hydride element are calculated respectively in this paper, and then the results are analyzed. The study shows that the absolute value of prompt negative temperature coefficient decreases observably along with the increasing of weight percentage of uranium. Additional poison erbium makes prompt negative temperature coefficient much more negative.
- Uranium zirconium hydride power reactor,
- Fuel element,
- Prompt negative temperature coefficient,
- Weight percentage of uranium,
- Additional poison