Experimental Study on Long-Time Cooling Characteristics of Passive Residual Heat Removal System

Zhou Huihui; PenG Chuanxin; Xu Jianjun; Li Yang

doi:10.13832/j.jnpe.2017.02.0043

Volume 38 Issue 2

Feb. 2025

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Zhou Huihui, PenG Chuanxin, Xu Jianjun, Li Yang. Experimental Study on Long-Time Cooling Characteristics of Passive Residual Heat Removal System[J]. Nuclear Power Engineering, 2017, 38(2): 43-45. doi: 10.13832/j.jnpe.2017.02.0043

Citation:

Zhou Huihui, PenG Chuanxin, Xu Jianjun, Li Yang. Experimental Study on Long-Time Cooling Characteristics of Passive Residual Heat Removal System[J]. Nuclear Power Engineering, 2017, 38(2): 43-45. doi: 10.13832/j.jnpe.2017.02.0043

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Experimental Study on Long-Time Cooling Characteristics of Passive Residual Heat Removal System

doi: 10.13832/j.jnpe.2017.02.0043

CNNC Key Laboratory on Nuclear Reactor Thermo Hydraulics Technology, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2016-10-08
Rev Recd Date: 2016-11-05

Available Online: 2025-02-09

Abstract

Abstract

An experimental investigation on longtime cooling is carried out in a removal of all core power condition for understanding the running characteristics of ACP100 passive residual heat removal system（PRS）.The investigation finds a continuance of natural circulation,which is due to stored heat releasing from reactor,core and steam generator.The natural circuit flow of PRS keeps from 0.52 t/h to 0.26 t/h;meanwhile,the system pressure of PRS falls from 1.0 MPa to 0.51 MPa,and the outlet temperature of the reactor core falls from 178.1℃ to 105.0℃.Besides,the investigation shows that natural circulation is descending continuously,and never restarts after stagnation.
- Passive residual heat removal system（PRS）,
- Longtime cooling,
- Flow Stagnation