Abstract
Hydrogen has a high diffusion rate and a wide range of combustion, making it essential to take safety precautions against leakage during storage. We investigate the change in hydrogen concentration in confined spaces due to hydrogen leakage through experimental and numerical methods assuming the worst-case scenario. The vent area consists of 12 %, 24 %, and 36 % of the floor area and is installed in the ceiling of the concrete enclosure. We confirm that the improvement of ventilation performance is insignificant just by increasing the ventilation area above a certain standard during emergency ventilation. Moreover, the improvement of ventilation performance by forced ventilation is more effective as the natural ventilation area is smaller. Still, the effect decreases as the natural ventilation area becomes larger. In conclusion, we confirm that ventilation efficiency is determined by the natural ventilation area rather than forced ventilation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
