Thermal Strain of Fuel Rods during Transient of Operation Transformation

HAO Yalei; YANG Xingtuan; JIANG Shengyao; LIU Zhiyong

Mar. 2025

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HAO Yalei, YANG Xingtuan, JIANG Shengyao, LIU Zhiyong. Thermal Strain of Fuel Rods during Transient of Operation Transformation[J]. Nuclear Power Engineering, 2012, 33(1): 78-82.

Citation:

HAO Yalei, YANG Xingtuan, JIANG Shengyao, LIU Zhiyong. Thermal Strain of Fuel Rods during Transient of Operation Transformation[J]. Nuclear Power Engineering, 2012, 33(1): 78-82.

HAO Yalei, YANG Xingtuan, JIANG Shengyao, LIU Zhiyong. Thermal Strain of Fuel Rods during Transient of Operation Transformation[J]. Nuclear Power Engineering, 2012, 33(1): 78-82.

Citation:

HAO Yalei, YANG Xingtuan, JIANG Shengyao, LIU Zhiyong. Thermal Strain of Fuel Rods during Transient of Operation Transformation[J]. Nuclear Power Engineering, 2012, 33(1): 78-82.

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Thermal Strain of Fuel Rods during Transient of Operation Transformation

Institute of Nuclear and New Energy Technology of Tsinghua University Key Lab of Advanced Nuclear Engineering and safety of ministry of education Beijing, 100084

Received Date: 2010-01-12
Rev Recd Date: 2010-09-12

Available Online: 2025-03-08

Abstract

Abstract

The analytical model was created using the RELAP5 code,and the rate of coolant temperature alteration and thermal strain of fuel rods during the transient from forced circulation to natural circulation were calculated and analyzed.The results show that,RELAP5 code is a proper tool to analyze the thermal strain of fuel rods during the transient from force circulation to natural circulation;the dramatic changes of thermal strain have effects on the mechanical properties of fuel rods;and the thermal stress of fuel rods dur-ing other transient can also be analyzed using RELAP5 code.
- Natural circulation,
- Thermal strain,
- Thermal stress,
- Fuel rods,
- RELAP5