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- Title
Heat transfer performance of thermoelectric cooling integrated with wavy channel heat sink with different magnetic distances.
- Authors
Wiriyasart, Songkran; Kaewluan, Sommas; Suksusron, Poonyawee
- Abstract
Thermoelectric cooling (TEC) reverses the electrical energy to temperature caused by the Peltier effect, where a temperature difference occurs between two conductors, that is, hot and cold junctions. This article presents the enhanced heat transfer of a TEC module using a TEC1‐12710 model integrated with a wavy channel heat sink using ferrofluid as a coolant under continuous and pulsating flows, where the differences in the distance of the magnetic field are considered. Square permanent magnets measuring 30 mm × 20 mm × 4 mm (width × length × height) are used to transmit a magnetic field to the heat sink and then tested under a magnetic distance of 10–30 mm. The test is performed at a water flow rate from 0.0083 to 0.028 kg/s and supplied with a constant TEC voltage of 12 V. By applying a magnetic field to the TEC module with a magnetic distance of 20 mm and a ferrofluid concentration ratio of 0.015%, the cooling efficiency increases by approximately 18.64%. Hence, using pulsating flow may improve thermal efficiency by approximately 23%. The results show an exponential increase in the cooling efficiency when both passive and active cooling techniques are used.
- Subjects
THERMOELECTRIC cooling; THERMOELECTRIC generators; HEAT transfer; HEAT sinks; HEAT sinks (Electronics); PELTIER effect; MAGNETIC fields; ELECTRICAL energy
- Publication
Heat Transfer, 2023, Vol 52, Issue 6, p3936
- ISSN
2688-4534
- Publication type
Article
- DOI
10.1002/htj.22863