Self-driven thermoelectric cooling contraption for liquid metals under the static magnetic field

• DOI: 10.1063/5.0155822
• Publication Date: 2023-07-14T12:02:51Z
• Authors: Dengke Zhang; Zenghui Wang; Xu Meng; Zhiyang Cai; Zhaoqi Chen
• Keywords: Liquid metal; Thermoelectric cooling

The presence of large temperature gradients in liquid metals during heat transfer can also induce thermoelectric effects, which lead to pumping or stirring under the action magnetic fields. effect has potential application background both nuclear fusion and metal metallurgy. In this paper, an experimental study flow driven by Seebeck effect, temperature-dependent voltage difference at interface between dissimilar metals, a field, be used create Lorentz force. It is proposed that method could for cooling electronics, reactors, solar technologies. working fluid eutectic gallium–indium–tin, measurements are made with ultrasound. velocity tends increase then decrease as field increases. Two scaling relations developed predict velocity, one weak fields strong Those predictions combined estimate maximum velocity. Temperature wall conductance ratio have significant on self-driven flow. found caused positively correlated number channels multi-channel experiments. This design idea self-generated will provide possibility pumpless lithium reactors new ideas electronic products related energy-saving emission reduction applications.