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http://dx.doi.org/10.5762/KAIS.2015.16.6.3708

Numerical study on the thermal performance characteristics of the stack system for FCEV  

Lee, Ho-Seong (Thermal Management System Research Center, KATECH)
Lee, Moo-Yeon (School of Mechanical Engineering, Dong-A University)
Won, Jong-Phil (Thermal Management System Research Center, KATECH)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.16, no.6, 2015 , pp. 3708-3713 More about this Journal
Abstract
The objective of this study is to numerically investigate the heat transfer rate for evaluating the thermal performances of the stack thermal system using the commercial software. In order to perform this, the cooling performances of the stack system for fuel cell electric vehicle were tested under both driving road conditions including the general driving road and uphill driving road and operating conditions with and without of the air conditioning system. The heat transfer rate of the stack radiator for the stack system was increased with the increase of the inlet air flow velocity. The heat transfer rate of the stack radiator increased by 105.3% at the coolant flow rate of 20 l/min and 221.3% at the coolant flow rate of 120 l/min with the increase of the air flow velocity from 2 m/s to 10 m/s. $9.45^{\circ}C$ of inlet coolant temperature of the stack radiator at the severe driving condition of the slope of 8% and velocity of 50 km/h showed higher 85.3% than $5.1^{\circ}C$ of inlet coolant temperature at the general driving condition of the slope of 0% and velocity of 120 km/h. In addition, as the fuel cell electric vehicle with the air conditioning system operation was driving under severe uphill driving condition, the radiator coolant temperature for a stable stack operation could be exceeded over $70^{\circ}C$.
Keywords
FEM (Front end module); Fuel cell; Heat transfer; Radiator; Stack;
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Times Cited By KSCI : 3  (Citation Analysis)
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