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Abstract of Applied Sciences and Engineering

November 2016, Volume 14, 14, pp 16

Fuzzy Control of Hydrogen Generation by the Reaction of Activated Aluminum Particles and Water

Bui Trong Giap, Kenji Takahara, Toshinori Kajiwara, Koji Maekawa

Bui Trong Giap 1 

Kenji Takahara 1 Toshinori Kajiwara 1 Koji Maekawa 4

  1. Department of Electrical Engineering, Fukuoka Institute of Technology, Fukuoka, Japan 1

  2. Department of Electrical and Electronic Engineering, Kitakyushu National College of Technology, Fukuoka, Japan 4


Abstract:

The purpose of this paper is to design a fuzzy control system for generating hydrogen at desired level by a reaction between water and activated aluminum particles. The activated aluminum particles are produced shredded aluminum sawdust. In theory, 1.35 [l] of pure hydrogen is generated from 1 [g] of the activated aluminum particles and 1 [ml] of water under the condition of 1atm and 25 degree. It is confirmed that an average of 1.1 [l] of hydrogen is generated by 1 [g] of the activated aluminum in experiments. It is difficult to characterize the reaction quantitatively because the characteristics of hydrogen generating reaction vary depending on the samples, the environment of the reaction and so on. The developed portable fuel cell (FC) system consists of a FC of 100[W], a water tank, a reaction vessel, pressure sensors, a water pump, a radiator and a one-chip microcomputer. The output y(k) is chosen as the pressure of the reaction vessel which is measured in the buffer tank. The input u(k) is chosen as the water supply. The fuzzy rule is determined as follows. If e(k) is AAA and △e(k) is BBB then △u(k) is CCC The error form 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. A variable resistor is connected to the developed portable FC system and the value of the resistor is changed stepwise. The water supply is changed by the controller due to the change of the load. Furthermore, the portable FC system is applied to the trial small FC vehicle (FCV). A DC-DC converter, a lead battery, and electric double layer capacitors of 2 [F] are connected to the output of the FC in parallel with the controller of the motor. When the electricity consumption increases large the electricity power is supplied from both the FC and the lead battery to the motor. By the driving experiments, the portable FC system can appropriately generate the electricity power according to the driving state of the FCV. It is considered that the developed fuzzy controller is useful for generating hydrogen by the reaction between the activated aluminum and water under various conditions.

Keywords:

Fuel Cell, Hydrogen Generation, Activated Aluminum Particles, Fuzzy Control.

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