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

Papanikolaou, E.A. and Venetsanos, A.G. and Heitsch, M. and Baraldi, D. and Huser, A. and Pujol, J. and García García, Javier and Markatos, N. (2010). HySafe SBEP-V20: Numerical studies of release experiments inside a naturally ventilated residential garage.. "International Journal of Hydrogen Energy", v. 35 (n. 10); pp. 4747-4757. ISSN 0360-3199. https://doi.org/10.1016/j.ijhydene.2010.02.020.

Description

Title: HySafe SBEP-V20: Numerical studies of release experiments inside a naturally ventilated residential garage.
Author/s:
  • Papanikolaou, E.A.
  • Venetsanos, A.G.
  • Heitsch, M.
  • Baraldi, D.
  • Huser, A.
  • Pujol, J.
  • García García, Javier
  • Markatos, N.
Item Type: Article
Título de Revista/Publicación: International Journal of Hydrogen Energy
Date: January 2010
ISSN: 0360-3199
Volume: 35
Subjects:
Freetext Keywords: Hydrogen safety; Garage; Release and dispersion simulations; Natural ventilation; CFD; Experiments
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Energética y Fluidomecánica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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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–model by partner NCSRD, FLACS using k– model by partner DNV, FLUENT using k– model by partner UPM and CFX using laminar and the low-Re number SST model by partner JRC. 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.

More information

Item ID: 7123
DC Identifier: http://oa.upm.es/7123/
OAI Identifier: oai:oa.upm.es:7123
DOI: 10.1016/j.ijhydene.2010.02.020
Official URL: http://www.elsevier.com
Deposited by: Memoria Investigacion
Deposited on: 20 May 2011 12:12
Last Modified: 20 Apr 2016 16:17
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