Riskreducerande åtgärder för vätgasläckage

Hydrogen use increase and so does the knowledge about its risks, but not necessarily about how to handle these risks. Limited literature is available about risk mitigation for hydrogen use, the objective of this thesis is to increase this knowledge. Risk reduction measures that could be relevant for hydrogen leakage were reviewed and their potential for further assessment was qualitatively considered. Two risk reduction measures were chosen for deeper analysis: ultrasonic gas leak detection and flame detection. These measures’ efficiencies were further studied through systematic literature search and practical experiments. For ultrasonic gas leak detection, both literature and experiments indicate that hydrogen has properties and storage pressures that benefits detection. Ultrasonic detection of hydrogen leakage should be as good as, or better than, ultrasonic detection of other flammable gases. For flame detection, results show that hydrogen flames emit radiation in fewer wavelengths than other, more common, flammable gases. Flame detection of hydrogen flames should be as good as flame detection of other flammable gases if specific wavelengths are analyzed.