An Assessment Methodology of Thee-Layers Melt Configuration during IVR for AP1000

XIANG Qing-an; GUAN Zhong-hua; DENG Chun-rui; CHEN Bao-wen

Volume 34 Issue 6

Mar. 2025

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XIANG Qing-an, GUAN Zhong-hua, DENG Chun-rui, CHEN Bao-wen. An Assessment Methodology of Thee-Layers Melt Configuration during IVR for AP1000[J]. Nuclear Power Engineering, 2013, 34(6): 83-87.

Citation:

XIANG Qing-an, GUAN Zhong-hua, DENG Chun-rui, CHEN Bao-wen. An Assessment Methodology of Thee-Layers Melt Configuration during IVR for AP1000[J]. Nuclear Power Engineering, 2013, 34(6): 83-87.

XIANG Qing-an, GUAN Zhong-hua, DENG Chun-rui, CHEN Bao-wen. An Assessment Methodology of Thee-Layers Melt Configuration during IVR for AP1000[J]. Nuclear Power Engineering, 2013, 34(6): 83-87.

Citation:

XIANG Qing-an, GUAN Zhong-hua, DENG Chun-rui, CHEN Bao-wen. An Assessment Methodology of Thee-Layers Melt Configuration during IVR for AP1000[J]. Nuclear Power Engineering, 2013, 34(6): 83-87.

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An Assessment Methodology of Thee-Layers Melt Configuration during IVR for AP1000

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

Received Date: 2012-07-31
Rev Recd Date: 2012-12-27

Available Online: 2025-03-08

Abstract

Abstract

In-Vessel Retention Analysis Model（IVRAM）is formulated to assess the thermal response of the Two-Layers melt configuration and Thee-Layers melt configuration during IVR for AP1000 with anticipative depressurization and reactor cavity flooding in severe accident. The results of the calculations for the melt configuration show that the presence of the heavy metallic layer at the bottom of the lower head decreases the thickness of the top light metallic layer and consequently increases the risk of focusing effect, the focusing effect of the light metallic layer increases with the increase of the thick of heavy metallic layer.
- Severe Accident,
- In-vessel Retention,
- Heavy metallic layer

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