Validation of Analytical Capabilities of RELAP5 on Two-phase Nature Circulation by ESPRIT Tests

Li Feng; Yu Na; XIan Lin; Zhang Shu

doi:10.13832/j.jnpe.2015.S2.0108

Volume 36 Issue S2

Feb. 2025

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Li Feng, Yu Na, XIan Lin, Zhang Shu. Validation of Analytical Capabilities of RELAP5 on Two-phase Nature Circulation by ESPRIT Tests[J]. Nuclear Power Engineering, 2015, 36(S2): 108-111. doi: 10.13832/j.jnpe.2015.S2.0108

Citation:

Li Feng, Yu Na, XIan Lin, Zhang Shu. Validation of Analytical Capabilities of RELAP5 on Two-phase Nature Circulation by ESPRIT Tests[J]. Nuclear Power Engineering, 2015, 36(S2): 108-111. doi: 10.13832/j.jnpe.2015.S2.0108

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Validation of Analytical Capabilities of RELAP5 on Two-phase Nature Circulation by ESPRIT Tests

doi: 10.13832/j.jnpe.2015.S2.0108

Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610312, China

Received Date: 2015-10-10
Rev Recd Date: 2015-10-20

Available Online: 2025-02-15

Abstract

Abstract

Secondary passive system（PRS） is designed to remove the residual heat during 72 hours after the reactor trips in a 3rd generation reactor called Hualong I. To verify the ability of PRS system, the test facility ESPRIT is built and the height ratio is 1:1. Tests are consisted by three steady-states and two transients. One model of RELAP5 is developed and used to simulate the steady and transient tests. The results of RELAP5 is consistent with facility results, but underestimates the direct-contact condensation power.
- PRS,
- ESPRIT,
- Direct-contact condensation