A rapid evaluation method of the heat removed by a VCS before rise-to-power tests
A rapid evaluation method of the heat removed by a VCS before rise-to-power tests
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升功率测试前 VCS 散热的快速评估方法
DOI：
10.1007/s11630-015-0787-x
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Takamatsu Kuniyoshi
中科院分区：
文献类型：
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作者：
Takamatsu Kuniyoshi
在上升至功率测试之前，无法获得从反应堆压力容器（RPV）释放或由容器冷却系统（VCS）除去的热量的实际测量值。在升压试验之前，操作人员很难评估高温工程试验堆（HTTR）提供的反应堆出口冷却剂温度。因此，当在升功率测试中RPV释放的热量或VCS移除的热量的实际测量值发生变化时，操作人员需要在几分钟内快速评估VCS移除的热量和反应堆出口冷却剂温度为30 MW，在100%反应堆功率下，在温度达到967°C之前，这是产生反应堆停堆的最高温度限制。本文提出了一种供操作人员使用的快速评价方法。实验结果与分析结果的差异在30 （kW）以内，适用于本评价方法；因此，在升压测试之前和测试过程中，操作人员可以在几分钟内快速分析VCS释放的热量。
Before rise-to-power tests, the actual measured value of heat released from the Reactor Pressure Vessel (RPV) or removed by the Vessel Cooling System (VCS) cannot be obtained. It is difficult for operators to evaluate the reactor outlet coolant temperature supplied from the High Temperature Engineering Test Reactor (HTTR) before rise-to-power tests. Therefore, when the actual measured value of heat released from the RPV or removed by the VCS are changed during rise-to-power tests, operators need to evaluate quickly, within a few minutes, the heat removed by the VCS and the reactor outlet coolant temperature of 30 MW, at 100% reactor power, before the temperature achieves 967°C which is the maximum temperature limit generating the reactor scram. In this paper, a rapid evaluation method for use by operators is presented. The difference between the experimental and analytical results was within 30 (kW) and it is appropriate that the presented evaluation method can be applied; therefore, operators can analyze the heat removed by the VCS quickly, within a few minutes, before and during Rise-to-Power Tests.