Advancement of Reactor Coolant Pump (RCP) Performance Verification Test in KAERI
Advancement of Reactor Coolant Pump (RCP) Performance Verification Test in KAERI
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DOI：
10.1115/icone22-31075
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发表时间：
2014-07
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影响因子：
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通讯作者：
Yun-Je Cho;Yeon-Sik Kim;S. Cho;S. Kim;B. Bae;H. Chung;Y. Youn;Jong-Kuk Park;H. Choi;Woo-Jin Jeon;Bok-Deuk Kim;T. Kwon;Chul H. Song
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文献类型：
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作者：
Yun-Je Cho;Yeon-Sik Kim;S. Cho;S. Kim;B. Bae;H. Chung;Y. Youn;Jong-Kuk Park;H. Choi;Woo-Jin Jeon;Bok-Deuk Kim;T. Kwon;Chul H. Song
韩国原子能研究所(KAIR)设计并建造了反应堆冷却剂泵(RCP)测试设施。RCP试验设施(RCPTF)具有在先进动力堆1400 MW(APR1400)运行条件下测试RCP的能力。该装置的最大压力为17.2 Mpa，最大温度为343℃，最大流量为11.7m~3/S，最大功率为13 MW。在该设施中，可以对新开发的RCP进行型式试验，也可以在安装到核电站之前对RCP进行生产试验。在生产试验中，得到了冷、热条件下的H-Q曲线。在型式试验中，还进行了四种类型的密封瞬变试验、推力轴承瞬变试验、成本下降试验等。为了获得RCP的H-Q曲线，需要通过改变试验回路中的流动阻力来控制流量。RCPTF使用可变限制孔板(VRO)，其流动面积可以通过移动平行安装的两个孔板来控制。使用VRO消除了对流量控制阀和旁路管道的需求，从而将流量干扰降至最低。RCPTF主回路中的流量是由标准的风险流量计测量的。RCPTF中的流量非常高，因此无法在与APR1400的操作条件相对应的整个雷诺数范围内校准风险流量计。校准是在美国科罗拉多实验工程站公司(CEESI)进行的，那里的工作流体使用天然气。如果将气体校准的流量系数应用于使用水作为工作液执行的测试结果中，则可能会由于静态孔误差而出现差异。因此，在测试结果中对静孔误差进行了补偿，得到了改善的结果，并评价了温度对压力脉动幅值的影响。在冷性能试验和升温阶段到热性能试验的条件下，在特定温度范围附近观察到压力脉动幅度异常增大。这是当RCP的叶片通过频率与RCPTF的谐谐振频率成正比时发生的声学共振现象。
Korea Atomic Energy Research Institute (KAERI) has designed and constructed a test facility for reactor coolant pumps (RCPs). The RCP Test Facility (RCPTF) has the capability to test a RCP under the operation condition of an Advanced Power Reactor 1400 MW (APR1400). The design values of the facility are 17.2 MPa, 343 °C, 11.7 m3/s, and 13 MW in maximum pressure, temperature, flow rate, and electrical power, respectively. In the facility, it is possible to perform a type test for a newly-developed RCP as well as a production test for a RCP before its installation in a nuclear power plant. For the production test, H-Q curves under the cold and hot conditions are acquired. For the type test, various transient tests are additionally performed including four types of seal transient tests, a thrust bearing transient test, a cost down test, and so on.To acquire H-Q curves of a RCP, the flow rate should be controlled by varying the flow resistance in the test loop. The RCPTF uses a Variable Restriction Orifice (VRO) whose flow area can be controlled by moving the two orifice plates installed in-parallel. The need for flow control valves and bypass lines was eliminated using the VRO such that the flow disturbance was minimized. The flow rate in the main loop of the RCPTF is measured by a standard venture flow meter. The flow rate in the RCPTF is very high and thus the venture flow meter could not be calibrated in the entire range of Reynolds number corresponding to the operating condition in the APR1400. The calibration was conducted at the Colorado Experiment Engineering Station Inc. (CEESI) in the USA where natural gas is used for a working fluid. If a discharge coefficient calibrated with the gas is applied in the test results performed using the water as a working fluid, a discrepancy can occur due to the static hole error. Therefore, the static hole error was compensated in the test results and the result shows the improvement.The effect of the temperature on the pressure pulsation amplitude was also evaluated. During a cold performance test and heat-up phase to the condition of a hot performance test, an abnormal increase in the pressure pulsation amplitude was observed near the specific temperature range. This is acoustic resonance phenomena that occur when a blade passing frequency of the RCP is proportional to the harmonic resonance frequency of the RCPTF.© 2014 ASME