Abstract The model of the EVEMP (Extra Vessel Electro Magnetic Pump) with a mass flow of 5000 kg/s and a developed pressure of 15000 Pa in the 350 °C operating temperature has many advantages as a coolant circulation pump for the Micro URANUS. Micro URANUS is an SMR with a rated output of 60 MWt which is abbreviated as ‘Micro Ubiquitous, Rugged, Accident-forgiving, Nonproliferating, and Ultra-lasting Sustainer’. Micro URANUS has a six-angle grid core as a pool type fast reactor using LBE, which is chemically stable as a coolant and can achieve a fast neutron spectrum. It is necessary to utilize natural circulation for the reactor to run without pumps even during normal operation, as well as accident situations. However, natural circulation was calculated to be only possible in the current design up to an output of 30 MWt as the size of the power source is very small compared to that given by the pump. In order to install pumps for enhanced output in Micro URANUS with these very small sizes and special structures, installation of EVEMP using the concept of an electromagnetic pump that is easy to free up space and operates in contactless ways is essential, and this is used to design enhanced power up to 60 MWt. The relationship of performances and design factors are analysed for the optimization of the EVEMP, derives data such as P-Q characteristics, input power changes, and efficiency changes depending on the different input power conditions of the EVEMP are predicted.

中文翻译：

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小型模块化铅铋快堆超容器电磁泵建模与分析

摘要 EVEMP（Extra Vessel Electro Magnetic Pump）模型在350°C工作温度下，质量流量为5000 kg/s，发展压力为15000 Pa，作为微型天王星的冷却剂循环泵具有许多优点。Micro URANUS 是一种额定输出功率为 60 MWt 的 SMR，缩写为“Micro Ubiquitous、Rugged、Accident-forgiving、Nonproliferating 和 Ultra-持久 Sustainer”。Micro URANUS 有一个六角网格堆芯作为使用 LBE 的池式快堆，作为冷却剂，化学性质稳定，可以实现快中子谱。即使在正常运行和事故情况下，也必须利用自然循环使反应堆在没有泵的情况下运行。然而，自然循环被计算为仅在当前设计中可能达到 30 MWt 的输出，因为与泵提供的电源相比，电源的尺寸非常小。为了在具有这些非常小的尺寸和特殊结构的微型天王星中安装泵以提高输出，使用易于释放空间和以非接触方式运行的电磁泵的概念安装 EVEMP 是必不可少的，这用于设计增强功率高达 60 MWt。分析性能和设计因素的关系以优化EVEMP，根据EVEMP的不同输入功率条件推导出PQ特性、输入功率变化和效率变化等数据。为了在具有这些非常小的尺寸和特殊结构的微型天王星中安装泵以提高输出，使用易于释放空间和以非接触方式运行的电磁泵的概念安装 EVEMP 是必不可少的，这用于设计增强功率高达 60 MWt。分析性能和设计因素的关系以优化EVEMP，根据EVEMP的不同输入功率条件推导出PQ特性、输入功率变化和效率变化等数据。为了在具有这些非常小的尺寸和特殊结构的微型天王星中安装泵以提高输出，使用易于释放空间和以非接触方式运行的电磁泵的概念安装 EVEMP 是必不可少的，这用于设计增强功率高达 60 MWt。分析性能和设计因素的关系以优化EVEMP，根据EVEMP的不同输入功率条件推导出PQ特性、输入功率变化和效率变化等数据。