HySafe SBEP-V20: Numerical studies of release experiments inside a naturally ventilated residential garage

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dc.contributor.author Papanikolaou, EA en
dc.contributor.author Venetsanos, AG en
dc.contributor.author Heitsch, M en
dc.contributor.author Baraldi, D en
dc.contributor.author Huser, A en
dc.contributor.author Pujol, J en
dc.contributor.author Garcia, J en
dc.contributor.author Markatos, N en
dc.date.accessioned 2014-03-01T01:33:37Z
dc.date.available 2014-03-01T01:33:37Z
dc.date.issued 2010 en
dc.identifier.issn 0360-3199 en
dc.identifier.uri http://hdl.handle.net/123456789/20491
dc.subject CFD en
dc.subject Experiments en
dc.subject Garage en
dc.subject Hydrogen safety en
dc.subject Natural ventilation en
dc.subject Release and dispersion simulations en
dc.subject.classification Chemistry, Physical en
dc.subject.classification Energy & Fuels en
dc.subject.classification Environmental Sciences en
dc.subject.classification Physics, Atomic, Molecular & Chemical en
dc.subject.other ADREA-HF en
dc.subject.other Bench-mark problems en
dc.subject.other Comparative assessment en
dc.subject.other Dispersion simulations en
dc.subject.other European Commission en
dc.subject.other Experimental investigations en
dc.subject.other Experimental measurements en
dc.subject.other Fuel cell vehicles en
dc.subject.other Hydrogen safety en
dc.subject.other Hydrogen-fuelled en
dc.subject.other Leak rate en
dc.subject.other Natural ventilation en
dc.subject.other Numerical approaches en
dc.subject.other Numerical investigations en
dc.subject.other Numerical studies en
dc.subject.other Peak power en
dc.subject.other Re numbers en
dc.subject.other Release experiments en
dc.subject.other Sensor location en
dc.subject.other User practices en
dc.subject.other Work packages en
dc.subject.other Benchmarking en
dc.subject.other Buildings en
dc.subject.other Combustors en
dc.subject.other Computational fluid dynamics en
dc.subject.other Dispersions en
dc.subject.other Doors en
dc.subject.other Fuel cells en
dc.subject.other Garages (parking) en
dc.subject.other Helium en
dc.subject.other Hydrogen en
dc.subject.other Vents en
dc.subject.other Experiments en
dc.title HySafe SBEP-V20: Numerical studies of release experiments inside a naturally ventilated residential garage en
heal.type journalArticle en
heal.identifier.primary 10.1016/j.ijhydene.2010.02.020 en
heal.identifier.secondary http://dx.doi.org/10.1016/j.ijhydene.2010.02.020 en
heal.language English en
heal.publicationDate 2010 en
heal.abstract This work presents the results of the Standard Benchmark Exercise Problem (SBEP) V20 of Work Package 6 (WP6) of HySafe Network of Excellence (NoE), co-funded by the European Commission, in the frame of evaluating the quality and suitability of codes, models and user practices by comparative assessments of code results. The benchmark problem SBEP-V20 covers release scenarios that were experimentally investigated in the past using helium as a substitute to hydrogen. The aim of the experimental investigations was to determine the ventilation requirements for parking hydrogen fuelled vehicles in residential garages. Helium was released under the vehicle for 2 h with 7.200 l/h flow rate. The leak rate corresponded to a 20% drop of the peak power of a 50 kW fuel cell vehicle. Three double vent garage door geometries are considered in this numerical investigation. In each case the vents are located at the top and bottom of the garage door. The vents vary only in height. In the first case, the height of the vents is 0.063 m, in the second 0.241 m and in the third 0.495 m. Four HySafe partners participated in this benchmark. The following CFD packages with the respective models were applied to simulate the experiments: ADREA-HF using k-epsilon model by partner NCSRD, FLACS using k-epsilon model by partner DNV, FLUENT using k-epsilon model by partner UPM and CFX using laminar and the low-Re number SST model by partner JAC. This study compares the results predicted by the partners to the experimental measurements at four sensor locations inside the garage with an attempt to assess and validate the performance of the different numerical approaches. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. en
heal.journalName International Journal of Hydrogen Energy en
dc.identifier.doi 10.1016/j.ijhydene.2010.02.020 en
dc.identifier.isi ISI:000278418700031 en
dc.identifier.volume 35 en
dc.identifier.issue 10 en
dc.identifier.spage 4747 en
dc.identifier.epage 4757 en

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