Scholarly record
RISK ANALYSIS FOR EXPERIMENTAL FUEL CELL VEHICLES AS AN ENERGY SOURCE DRIVE
Abstract
The transportation is the most significant energy consumer. Energy consumption in European Union is supported by 50% from its own sources. This implies the need of fossil fuel replacement by alternative possibilities. One option is application of renewable inexhaustible and clean resources which hydrogen is. This paper deals with hydrogen technology application in order to power experimental vehicle. Other thing is the safety concerning the process of human пїЅ machine пїЅ environment system with respect to hydrogen properties. For this purpose, the experimental vehicle was fitted with fuel cell NEXA with nominal power of 198 Watts. During fuel cell operation we focused on minimization of hydrogen system leakage. The risks of hydrogen leakage out of fuel cell circuit were determined by FTA method. During analysis of the hydrogen drive, one of the parameter of the MTBF (Mean-Time-Between-Failures) theory was used. Information source for MTBF values was NPRD пїЅ 95 database (Non-electronic Parts Reliability Data). Consequently, the probability of hydrogen leakage and risks matrix was defined to determine its scale. Risk reduction was accomplished by structural modifications of hydrogen circuit distribution.
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