May 2020
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11 Reads
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5 Citations
Annals of Nuclear Energy
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.