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http://dx.doi.org/10.5139/JKSAS.2013.41.3.226

Fuel cell system for SUAV using chemical hydride - I. Lightweight hydrogen generation and control system  

Hong, Ji-Seok (Korea Aerospace University, School of Aerospace and Mechanical Engineering)
Jung, Won-Chul (Korea Aerospace University, School of Aerospace and Mechanical Engineering)
Kim, Hyeon-Jin (Korea Aerospace University, School of Aerospace and Mechanical Engineering)
Lee, Min-Jae (Korea Aerospace University, School of Aerospace and Mechanical Engineering)
Jeong, Dae-Seong (Korea Aerospace University, School of Aerospace and Mechanical Engineering)
Jeon, Chang-Soo (Korea Aerospace University, School of Aerospace and Mechanical Engineering)
Sung, Hong-Gye (Korea Aerospace University, School of Aerospace and Mechanical Engineering)
Shin, Seock-Jae (Korea Institute of Science and Technology, Fuel Cell Center)
Nam, Suk-Woo (Korea Institute of Science and Technology, Fuel Cell Center)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.41, no.3, 2013 , pp. 226-232 More about this Journal
Abstract
A compact hydrogen generation device of fuel cell system using chemical hydride storage technique was designed to fit the propulsion device requirement of a small unmanned aerial vehicle(SUAV). For high efficient, compact, and lightweight hydrogen generation control device, the Co-B catalyst hydrogen conversion rate by $NaBH_4$ aqueous solution flux is measured so that the proper amount of Co-B catalyst for maximum hydrogen generation of 100W stack was proposed. A compact hydrogen generation device is controlled by pump's on/off using its own internal pressure and consumes fuel in high efficiency through a dead-end type fuel cell. The fuel cell system has stable operation for a planed flight profile. The system operates up to maximum 7 hours and at least 4 hours for tough flight profiles.
Keywords
Sodium Borohydride($NaBH_4$); Fuel Cell; Co-B catalyst; Hydrogen generation control system;
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