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http://dx.doi.org/10.15207/JKCS.2022.13.03.191

Thermo-Fluid Simulation for Flow Channel Design of 7kW High-Voltage Heater for Electric Vehicles  

Son, Kwon Joong (Department of Mechanical and Design Engineering, Hongik University)
Publication Information
Journal of the Korea Convergence Society / v.13, no.3, 2022 , pp. 191-196 More about this Journal
Abstract
Unlike an international combustion engine car, a battery-powered electric vehicle requires an additional heat source for its heating system. A high-voltage coolant heater has the advantages of high efficiency and a wide operating temperature range. In its development, the geometry design of the coolant flow path is essential. This paper presents the thermal flow simulations of a 7kW high-voltage heater with symmetric serpentine flow channels arranged parallelly. The heater performance was evaluated from the simulation results in terms of the pressure and temperature differences and the flow uniformity. The proposed design showed a greater flow resistance and similar heat exchanging capability than the existing parallel serpentine design. It has the advantage of a relatively wide low-temperature surface area, where the control circuit board susceptible to high temperatures can be located.
Keywords
High-voltage heater; Electric vehicles; Flow channel; Thermo-fluid simulation; Convergence design;
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Times Cited By KSCI : 4  (Citation Analysis)
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