The purpose of this paper is to design a fuzzy control system for
generating hydrogen at a desired level by a reaction between water and
activated aluminum particles. The activated aluminum particles are
produced shredded aluminum sawdust. It is difficult to characterize the
reaction quantitatively because the characteristics of hydrogen
generating reaction vary as depending on the samples, the environment of
the reaction and so on. The experimental system consists of a fuel cell
(FC) of 100[W], a water tank, a reaction vessel, pressure sensors, a
water pump, a radiator and a one-chip microcomputer. The fuzzy control
system is designed to determine the quantum of water which is supplied
to the activated aluminum particles. The error forms a desired value of
the pressure of the reaction vessel and the change of the error are
chosen as the labels of the fuzzy membership functions. The proposed
fuzzy control system is applied to maintain the pressure of the reaction
vessel of the developed hydrogen generation system at a certain level.
The developed hydrogen generation system is confirmed to provide
hydrogen to the FC by experiments under various conditions.
J. H. Stannard, "A portable hydrogen generator for vehicles," Hydrogen Energy Progress, vol. 8, pp. 935-944, 1990.
R. M. Mohring, "A sodium borohydride on-board hydrogen generator for powering fuel cell and internal combustion engine vehicle," in Proceedings of Future Transportation Technology Conference, 2001-01-2529, 2001, pp. 1-4.
S. Murooka, "Consideration on fundamental characteristic of hydrogen generator system fueled by NaBH4 for fuel cell hybrid electric vehicle," in Proceedings of the 2012 IEEE International Electric Vehicle Conference, 2012, pp. 1-6.
K. Maekawa, "Control of hydrogen generation from water molecules dissociated by activated aluminum particles based on fuzzy logic," Transactions of the Society of Instrument and Control Engineers, vol. 47, pp. 150-156, 2011.
K. Maekawa, "A portable fuel cell system using activated aluminum," IEE Journal of Transactions on Industry Applications, vol. 132, pp. 997-1002, 2012.
M. Watanabe, "Generation of pure hydrogen from water using activated aluminum powder," in Proceedings of Joint Seminar on Environmental Science and Disaster Mitigation Research 2007, pp. 15-16.
O. S. Markus, Hydrogen in metals. I M Bernstein Eds. Bilthoven: ASM International, 1974.
K. Takahara and K. Maekawa, "Development of a microcompact fuel-cell vehicle equipped with a hydrogen generator," Journal of Asian Electric Vehicles, vol. 12, pp. 1687-1691, 2014. View at Google Scholar | View at Publisher
This study received no specific financial support.
The authors declare that they have no competing interests.
All authors contributed equally to the conception and design of the study.