Open Access Open Access  Restricted Access Subscription Access

CFD Analysis of the Primary Cooling System for the Small Modular Natural Circulation Lead Cooled Fast Reactor SNRLFR-100


Affiliations
1 School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230027, China
 

Small Modular Reactor (SMR) has drawn wide attention in the past decades, and Lead cooled Fast reactor (LFR) is one of the most promising advanced reactors which are able to meet the safety economic goals of Gen-IV nuclear energy systems. A small modular natural circulation lead cooled fast reactor-100 MWth (SNRLFR-100) is being developed by University of Science and Technology of China (USTC). In the present work, a 3D CFD model, primary heat exchanger model, fuel pin model, and point kinetic model were established based on some reasonable simplifications and assumptions, the steady-state natural circulation characteristics of SNCLFR-100 primary cooling system were discussed and illustrated, and some reasonable suggestions were proposed for the reactor's thermal-hydraulic and structural design. Moreover, in order to have a first evaluation of the system behavior in accident conditions, an Unprotected Loss of Heat Sink (ULOHS) transient simulation at beginning of the reactor cycle (BOC) has been analyzed and discussed based on the steady-state simulation results. The key temperatures of the reactor core are all under the safety limits at transient state; the reactor has excellent thermal-hydraulic performance.

Keywords

English
User
Notifications
Font Size

Abstract Views: 90

PDF Views: 0




  • CFD Analysis of the Primary Cooling System for the Small Modular Natural Circulation Lead Cooled Fast Reactor SNRLFR-100

Abstract Views: 90  |  PDF Views: 0

Authors

Pengcheng Zhao
School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230027, China
Kangli Shi
School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230027, China
Shuzhou Li
School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230027, China
Jingchao Feng
School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230027, China
Hongli Chen
School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230027, China

Abstract


Small Modular Reactor (SMR) has drawn wide attention in the past decades, and Lead cooled Fast reactor (LFR) is one of the most promising advanced reactors which are able to meet the safety economic goals of Gen-IV nuclear energy systems. A small modular natural circulation lead cooled fast reactor-100 MWth (SNRLFR-100) is being developed by University of Science and Technology of China (USTC). In the present work, a 3D CFD model, primary heat exchanger model, fuel pin model, and point kinetic model were established based on some reasonable simplifications and assumptions, the steady-state natural circulation characteristics of SNCLFR-100 primary cooling system were discussed and illustrated, and some reasonable suggestions were proposed for the reactor's thermal-hydraulic and structural design. Moreover, in order to have a first evaluation of the system behavior in accident conditions, an Unprotected Loss of Heat Sink (ULOHS) transient simulation at beginning of the reactor cycle (BOC) has been analyzed and discussed based on the steady-state simulation results. The key temperatures of the reactor core are all under the safety limits at transient state; the reactor has excellent thermal-hydraulic performance.

Keywords


English