NUCLEAR TECHNIQUES, Volume. 46, Issue 11, 110601(2023)
Development and validation of real-time modeling and simulation platform for molten salt reactor based on EPICS framework
Figures & Tables(16)
Fig. 7. Control and protection logic of pump start-up and coast-down
Fig. 8. Variation of reactivity inserted during protected pump start-up experiment
Fig. 9. Variation of reactivity inserted during protected pump coast-down experiment
Fig. 10. Variation of core power during the natural circulation experiment
Fig. 11. Power response after a 2.48×10-4 step insertion of reactivity at 1 MW
Fig. 12. Power response after a 1.9×10-4 step insertion of reactivity at 5 MW
Fig. 13. Power response after a 1.39×10-4 step insertion of reactivity at 8 MW
Table 1. Neutronics parameters for U-233 and U-235
View tableView in ArticleTable 1. Neutronics parameters for U-233 and U-235
参数Parameter 群组Group U-233 U-235 衰变常数
Decay constant / s-1
1
2
3
4
5
6
0.012 6
0.033 7
0.139
0.325
1.13
2.50
0.012 4
0.030 5
0.111
0.301
1.14
3.01
缓发中子份额
Delayed-neutron fraction /10-5
1
2
3
4
5
6
22.8
78.8
66.4
73.6
13.6
8.8
22.3
145.7
130.7
262.8
76.6
28.0
平均中子代时间Mean neutron life time / s 0.000 40 0.000 24 熔盐温度反馈系数Molten salt reactivity coefficient / 10-5 K-1 -11.03 -8.71 石墨温度反馈系数Graphite reactivity coefficient / 10-5 K-1 -5.814 -6.66
Table 2. Main design parameters of MSRE
View tableView in ArticleTable 2. Main design parameters of MSRE
参数Parameter 值Value 堆芯Reactor core
热功率Thermal power / MW
燃料盐质量流量Fuel salt mass flow / kg∙s-1
堆芯高度Core height / m
水力直径Hydraulic diameter / m
总流通面积Total flow area / m2
总换热面积Total heat transfer area / m2
进/出口温度Inlet /Outlet temperature / K
8
168
1.63
0.015 8
0.036 4
21.55
908/936
主换热器 Primary heat exchanger 壳侧Shell side
总流通面积Total flow area / m2
水力直径Hydraulic diameter / m
进/出口温度Inlet /outlet temperature / K
管侧Tube side
冷却盐质量流量Coolant salt mass flow / kg∙s-1
水力直径Hydraulic diameter / m
总流通面积Total flow area / m2
进/出口温度Inlet /Outlet temperature / K
总换热面积 Total heat transfer area / m2
0.09
0.025
936/908
105
0.015
0.015
825/866
26
空气散热器 Air radiator 空气质量流量Air mass flow rate / kg∙s-1
总换热面积 Total heat transfer area / m2
进/出口温度Inlet /Outlet temperature / K
75
65.5
300/411
Table 3. Test results of real-time simulation
View tableView in ArticleTable 3. Test results of real-time simulation
实验基准题
Experiment benchmark
总的物理问题时间
Total physical
problem time / s
总的实际仿真时间
Total actual
simulation time / s
最小等待时间
Minimum waiting
time / s
最大等待时间
Maximum waiting
time / s
启泵瞬态工况Pump start-up transient 50 50 0.031 2 0.093 7 停泵瞬态工况Pump coast-down transient 70 70 0.078 1 0.093 6 自然循环瞬态工况
Natural circulation transient
20 000 20 000 0.015 6 0.093 8 1 MW时反应性引入瞬态工况
Reactivity introduced transient at 1 MW
400 400 0.015 7 0.093 7 5 MW时反应性引入瞬态工况
Reactivity introduced transient at 5 MW
400 400 0.015 6 0.093 7 8 MW时反应性引入瞬态工况
Reactivity introduced transient at 8 MW
110 110 0.015 6 0.093 8
Tools
Get Citation
Copy Citation Text
Shichao CHEN, Rui LI, Xiandi ZUO, Haijun LIU, Kaicheng YU, Maosong CHENG, Zhimin DAI. Development and validation of real-time modeling and simulation platform for molten salt reactor based on EPICS framework[J]. NUCLEAR TECHNIQUES, 2023, 46(11): 110601
Paper Information
Category: Research Articles
Received: Mar. 4, 2023
Accepted: --
Published Online: Dec. 23, 2023
The Author Email:
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20