Agnieszka Weronika Lach
Process, Energy and Environmental Technology, University of South-Eastern Norway, Kjølnes Ring 53 3916 Norway
Torbjørn Grande Østby
Process, Energy and Environmental Technology, University of South-Eastern Norway, Kjølnes Ring 53 3916 Norway
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https://doi.org/10.3384/ecp20176443Published in: Proceedings of The 61st SIMS Conference on Simulation and Modelling SIMS 2020, September 22-24, Virtual Conference, Finland
Linköping Electronic Conference Proceedings 176:63, p. 443-450
Published: 2021-03-03
ISBN: 978-91-7929-731-2
ISSN: 1650-3686 (print), 1650-3740 (online)
The aim of this paper is to estimate the parameters of the model of Pressure Peaking Phenomena (PPP). This project focuses on the investigation of the overpressures arising from the ignited hydrogen releases in 14.9m3 enclosure (explosive chamber) through a 4mm nozzle. The various ventilation areas and mass flow rates were applied in 31 tests. The controlled variables for experiments are mass flow rate (MFR, g/s), ventilation area (Av, m2) and time of hydrogen releases (t, s). The Bayesian approach was implemented in the parameter estimation using Markov chain Monte Carlo method for simulations. The discharge coefficient and heat loss coefficient has been analyzed and gave by posterior distribution.
pressure peaking phenomena, hydrogen safety, Bayesian analysis, parameter estimation, MCMC
