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http://dx.doi.org/10.7467/KSAE.2015.23.1.049

Development of Air Cutoff Valve for Improving Durability of Fuel Cell  

Park, Jeonghee (Fuel Cell Vehicle 1Team, Hyundai Motor Company)
Lee, Changha (Fuel Cell Vehicle 1Team, Hyundai Motor Company)
Kwon, Hyuckryul (Fuel Cell Vehicle 1Team, Hyundai Motor Company)
Kim, Chimyung (Fuel Cell Vehicle 1Team, Hyundai Motor Company)
Choi, Kyusung (R&D Center, Motonic Corporation)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.23, no.1, 2015 , pp. 49-55 More about this Journal
Abstract
In this study, among in various scenarios of the duration degradation of the fuel cell, countermeasures for the cathode carbon carrier oxidation and the deactivation of catalyst by hydrogen / air interface formation have been studied. so the system was applied to the air cutoff valve. In terms of the component, the cold start performance, electrical stability, the airtight performance were mainly designed and their performance was confirmed. And in terms of the system, the air electrode flow is blocked off, so the oxygen concentration drops when system is powered off, As a result, By reducing unit cell voltage which affect the durability of the fuel cell reached up to 0.8V, the improved durability of the fuel cell was confirmed.
Keywords
Air cutoff valve; Fuel cell; Worm gear; Permanent magnet DC motor; Stall torque;
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  • Reference
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