NUCLEAR TECHNIQUES, Volume. 46, Issue 10, 100602(2023)
Systematic measurement method for primary coolant flow rate in advanced passive nuclear power units
Figures & Tables(8)
Fig. 4. Measurement of pressure difference for RCS cold (a) and hot (b) leg flow
Fig. 5. Flow measurement data and expected data for each measuring method
Table 1. Differential pressure measurement and flow calculation during HFT and start-up test
View tableView in ArticleTable 1. Differential pressure measurement and flow calculation during HFT and start-up test
测点
Test position
不确定度
Uncertainty
热试计算值HFT calculated flow / m3∙hr-1 热试总流量HFT total flow / m3∙hr-1 启动试验计算值Start-up test calculated flow / m3∙hr-1 启动试验总流量Start-up test total flow / m3∙hr-1 压力容器TFT115
RV TFT115
±5.26% 71 131 71 523 71 801.596 8 71 212.962 9 蒸发器TFT113
SG TFT113
±10.70% 37 044 73 702 ― ― 主泵TFT101
RCP TFT101
±1.54% 18 100 71 840 ― ― 热管FT1
HL FT1
±13.09% 32 154 32 280.5 37 229.208 0 74 570.983 3 热管FT2
HL FT2
±13.07% 32 550 热管FT3
HL FT3
±13.10% 31 949 热管FT4
HL FT4
±13.07% 32 469 热管TFT109
HT TFT109
±12.68% 32 822 32 398.5 36 890.125 3 73 731.652 4 热管TFT110
HT TFT110
±12.68% 31 975 冷管FT171
CL FT171
±4.28% 18 001 69 369 18 718.055 7 71 950.906 8 冷管TFT105
CL TFT105
±4.15% 18 434 70 951 18 618.200 9 70 633.531 0 RCS总流量值
RCS Total Flow
±1.32% ― 71 546 ― ―
Table 2. Differential pressure measurement, flow calculation, and weighting factor during HFT
View tableView in ArticleTable 2. Differential pressure measurement, flow calculation, and weighting factor during HFT
测量方式Test method 测量流量Test flow / m3∙hr-1 不确定度Uncertainty / % 权重因子Weighting factor RV压差 RV Dp 71 523.00 ±5.25 0.061 6 SG压差 SG Dp 73 702.00 ±10.76 0.010 2 RCP压差 RCP Dp 71 840.00 ±1.46 0.809 8 冷管压差 Cold Leg Dp 70 160.00 ±4.14 0.106 1 热管压差 Hot Leg Dp 62 393.00 ±12.68 0.012 3 总流量 Total Flow / m3∙hr-1 71 546.00 ±1.32 ―
Table 3. Calibrated RCS bend pipe flow coefficients
View tableView in ArticleTable 3. Calibrated RCS bend pipe flow coefficients
永久仪表Permanent transmitter 热试流量系数HFT flow coefficient 启动流量系数
PFT flow coefficient
最终流量系数Final flow coefficient 环路I热管1 Loop I HLeg1 1.528 1.523 1.525 环路I热管2 Loop I HLeg2 1.544 1.533 1.537 环路I热管3 Loop I HLeg3 1.528 1.522 1.524 环路I热管4 Loop I HLeg4 1.544 1.538 1.540 环路I冷管1 Loop I CLeg 1 2.631 2.636 2.632 环路I冷管2 Loop I CLeg 2 2.389 2.391 2.389
Tools
Get Citation
Copy Citation Text
Hui LUO. Systematic measurement method for primary coolant flow rate in advanced passive nuclear power units[J]. NUCLEAR TECHNIQUES, 2023, 46(10): 100602
Paper Information
Category: Research Articles
Received: Jun. 10, 2023
Accepted: --
Published Online: Nov. 21, 2023
The Author Email:
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20