A compact Double-spiral electromagnetic pump for liquid metal cooling. (January 2023)

• Record Type: Journal Article
• Authors: Sun, Peng; Liu, Chuan-Ke; He, Zhi-Zhu
• Is Part Of: Annals of nuclear energy. Volume 180(2023)
• Publication Date: 2023-01
• Subjects: High heat flux -- Liquid metal -- Electromagnetic pump -- Minichannel heat sink -- Convective heat transfer; Nuclear energy -- Periodicals; Nuclear engineering -- Periodicals; 621.4805
• DOI: 10.1016/j.anucene.2022.109486
• Languages: English
• ISSNs: 0306-4549

Abstract

Highlights: A novel high-performance double spiral electromagnetic pump was developed. The multiphysics model combined with fluid flow and electromagnetic field is developed. The maximum pressure head 76.5 kPa @200A and flow rate of 2.19 L/min is achieved. The liquid metal heat sink could achieve efficient cooling of 156 W/cm 2 . Abstract: This paper reports a novel conception of the high-performance double spiral electromagnetic pump (DS-EMP) to efficiently drive liquid metal (LM) fluid with minimum volume. The mathematic model and experimental test methods have been adopted to investigate the driving characteristics of DS-EMP. The result shows that the performance of DS-EMP can be regulated by changing the number of the spiral flow channel. Increasing the number of spiral flow channels is conducive to achieving a high-pressure head. Reducing the number of spiral flow channels is beneficial for obtaining a large flow rate. The experimental result indicates that it can provide the maximum pressure head of 76.5 kPa @200A and the corresponding maximum flow rate of 2.19 L/min with a compact volume of 0.8 L. The LM cooling loop driven by DS-EMP was established to achieve efficient cooling of 156 W/cm 2 (755 W) heat flux with a flow rate of 1.86 L/min.