Combined effect of pulsating flow and magnetic field on thermoelectric cooler performance
M.Sh. Nassar, A.A. Hegazi, M.G. Mousa
Case Studies in Thermal Engineering · 2019
doi:10.1016/j.csite.2019.100403 (opens in a new tab)
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Abstract
The performance enhancement of the thermoelectric cooler (TEC) by controlling the working conditions is the main target of the present experimental investigation. The present study handles the variation of the most effective parameters through changing the pulsating air flow by introducing cases of Womersley number (Wo); 0 ≤ Wo ≤ 41.28. The magnetic field intensities Bo; 0.875 ≤ Bo ≤ 1.25 T, at different input current (I) from 4.6 to 7.4 Amp, at 0.0542 kg/s mass flow rate. The test section consists of a set of four TEC integrated with eight heat sinks, exposed to a magnetic field emitter, and two DC motors to create pulsating flow, all enclosed in a rectangular duct. The maximum obtained coefficient of performance (COP) in case of pulsating flow was 0.24. While at the case of both magnetic field and pulsating flow was 0.277. Comparing with the case of TEC without both effects it was 0.192. Comparing with previous works the results shows a good trend agreement. Keywords: Thermoelectric cooler, Forced convection, Magnetic field, Pulsating flow, Electronic cooling
Abstract licence: CC BY-NC
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