DBPapers
DOI: 10.5593/sgem2017/42/S17.068

RISK ANALYSIS FOR EXPERIMENTAL FUEL CELL VEHICLES AS AN ENERGY SOURCE DRIVE

J. Pila, O. Sloboda, M. Mrazko, P. Korba, M. Hovanec
Tuesday 12 September 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgem.org, SGEM2017 Conference Proceedings, ISBN 978-619-7408-07-2 / ISSN 1314-2704, 29 June - 5 July, 2017, Vol. 17, Issue 42, 537-544 pp, DOI: 10.5593/sgem2017/42/S17.068

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 – machine – 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 – 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.

Keywords: risk analysis, fuel cell, vehicles, energy