小型压水堆螺旋管直流蒸汽发生器参数不确定性量化研究

基金项目: 国家自然科学基金青年项目（12005096）；湖南省自然科学基金面上项目（2022JJ30479）；2022年度湖南省大学生创新创业训练计划项目（S202210555133；S202210555135）

Quantitative Research on Parameter Uncertainty of Helical Coil Once-Through Tube Steam Generator on the Small Pressurized Water Reactor

1.
School of Nuclear Science and Technology, University of South China, Hengyang, Hunan, 421001, China
2.
Department of Nuclear engineering design and Research, China Institute of Atomic Energy, Beijing, 102413, China

摘要: 为研究螺旋管直流蒸汽发生器（HCOTSG）参数不确定性对小型压水堆运行的影响，在建立堆芯功率控制系统、蒸汽发生器给水控制系统及稳压器压力和液位控制系统的基础上，开发小型压水堆HCOTSG参数不确定性量化平台。以螺旋管内外径不确定性量化为例，开展平台的应用研究。结果表明，开发的HCOTSG参数不确定性量化平台可以用于开展螺旋管内外径不确定性量化分析。
- 螺旋管直流蒸汽发生器（HCOTSG） /
- 螺旋管内外径 /
- 不确定性
Abstract: To study the influence of parameter uncertainties of helical coil once-through tube steam generator (HCOTSG) on the operation of small pressurized water reactor, based on the establishment of the core power control system, the feed water control system of steam generator and the pressure and water level control system of pressurizer a quantitative platform for parameter uncertainties of HCOTSG on the small pressurized water reactor was developed. Taking the uncertainty quantification of inner and outer diameters of helical pipes as an example, the application research of the platform is carried out. The results show that the developed platform can well quantify the uncertainty of the primary system of small pressurized water reactor.
- Helical coil once-through tube steam generator /
- Inner and outer diameter of the helical tube /
- Uncertainty

图 1 HCOTSG控制体节点划分

h—比焓；$ \overline Q $—控制体的换热量；$ \overline T $—控制体内平均温度；W—质量流量；下标：w—管壁；p—一次侧；s—二次侧；0、1、2、3表示工质流过的先后顺序

Figure 1. Node Division of Control Body of HCOTSG

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图 2 HCOTSG给水控制系统功能框图

s—拉普拉斯变换后的复变量

Figure 2. Function Block Diagram of Feedwater Control System of HCOTSG

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图 3 小型压水堆HCOTSG参数不确定性量化平台

Figure 3. Uncertainty Quantification Platform for Parameter Uncertainty of HCOTSG of Small Pressurized Water Reactor

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图 4 5%FP/min线性降负荷动态响应

Figure 4. Dynamic Response of 5%FP/min Linear Load Shedding

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图 5 HCOTSG二次侧进口温度阶跃上升2℃时系统的动态响应

Figure 5. Dynamic Response of the System When the Inlet Temperature of the Secondary Side of HCOTSG Rises by 2℃

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图 6 一回路系统动态响应的相对标准偏差

Figure 6. Relative Standard Deviation of Dynamic Response of Primary System

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表 1 HCOTSG 结构参数

Table 1. Structure Parameters of HCOTSG

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表 2 负荷以5%FP/min线性降至90%FP时一回路系统响应峰值描述统计

Table 2. Descriptive Statistics of the Peak Response of the Primary System When the Load is Linearly Reduced to 90%FP by 5%FP/min　　　　　　　　　　

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表 3 HCOTSG二次侧进口温度阶跃上升2℃时一回路系统响应峰值描述统计

Table 3. Descriptive Statistics of the Peak Response of the Primary System When the Inlet Temperature of the Secondary Side of HCOTSG Rises by 2℃

下载: 导出CSV

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