Abstract Design improvement of two-phase natural circulation systems with thermoelectric generator (TEG) is proposed in this paper. In the systems designed, the TEG produces electricity with heat energy of the systems. The electricity is further supplied to a pump and a group of agitators. In this way, circulation flow in the systems and external heat transfer of heat exchangers can be enhanced. Feasibility and effectiveness of the designed systems are analyzed through numerical simulation. The results indicate that by regulating the allocation of electricity between different loads, enough inlet subcooling of the pump can be ensured. Thus, the potential cavitation can be avoided. Comparative analysis of the systems performance with that of the natural circulation systems are carried out. Analysis results indicate that circulation flow and heat transfer are markedly enhanced with the systems designed.

中文翻译：

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改进型热电发电机两相自然循环系统的设计与分析

摘要 本文提出了带热电发电机（TEG）的两相自然循环系统的设计改进。在设计的系统中，TEG 利用系统的热能发电。电力进一步供应给泵和一组搅拌器。这样，可以增强系统中的循环流动和热交换器的外部传热。通过数值模拟分析了所设计系统的可行性和有效性。结果表明，通过调节不同负载之间的电力分配，可以保证泵的足够的入口过冷度。因此，可以避免潜在的气穴现象。对系统性能与自然循环系统的性能进行了比较分析。