Abstract
| Language | English |
|---|---|
| Pages | 2415-2429 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 40 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 9 Feb 2015 |
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Keywords
- Hydrogen safety
- Enclosure
- Natural ventilation
- CFD
- Release and dispersion
- Benchmark
Cite this
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CFD benchmark on hydrogen release and dispersion in confined, naturally ventilated space with one vent. / Giannissi, S.G.; Shentsov, Volodymyr; Melideo, Daniele; Cariteau, Benjamine; Baraldi, Daniele; Venetsanos, Alexandros; Molkov, Vladimir.
In: International Journal of Hydrogen Energy, Vol. 40, No. 5, 09.02.2015, p. 2415-2429.Research output: Contribution to journal › Article
TY - JOUR
T1 - CFD benchmark on hydrogen release and dispersion in confined, naturally ventilated space with one vent
AU - Giannissi, S.G.
AU - Shentsov, Volodymyr
AU - Melideo, Daniele
AU - Cariteau, Benjamine
AU - Baraldi, Daniele
AU - Venetsanos, Alexandros
AU - Molkov, Vladimir
PY - 2015/2/9
Y1 - 2015/2/9
N2 - A CFD benchmark was performed within the HyIndoor project, to study hydrogen releaseand dispersion in a confined space with natural ventilation and one vent. Three experiments,performed earlier by CEA at their GAMELAN 1 m3 facility, were considered for thisbenchmark. In all three tests helium (instead of hydrogen for safety reasons) was releasedvertically upwards at 60 NL/min from a 20 mm orifice near the centre of the enclosure. Adifferent vent size was used for each test. Three HyIndoor partners (JRC, NCSRD and UU)participated in the benchmark, with three different CFD codes, (ANSYS Fluent, ADREA-HFand ANSYS CFX) and three different turbulence models respectively (transitional SST,standard k-ε, dynamic Smagorinski LES). In general, good agreement was found betweenpredicted and measured helium concentrations. However, in the case of the vent with thesmallest vertical extension (vent c) all predictions overestimate the concentration at thelower part of the enclosure at steady state.
AB - A CFD benchmark was performed within the HyIndoor project, to study hydrogen releaseand dispersion in a confined space with natural ventilation and one vent. Three experiments,performed earlier by CEA at their GAMELAN 1 m3 facility, were considered for thisbenchmark. In all three tests helium (instead of hydrogen for safety reasons) was releasedvertically upwards at 60 NL/min from a 20 mm orifice near the centre of the enclosure. Adifferent vent size was used for each test. Three HyIndoor partners (JRC, NCSRD and UU)participated in the benchmark, with three different CFD codes, (ANSYS Fluent, ADREA-HFand ANSYS CFX) and three different turbulence models respectively (transitional SST,standard k-ε, dynamic Smagorinski LES). In general, good agreement was found betweenpredicted and measured helium concentrations. However, in the case of the vent with thesmallest vertical extension (vent c) all predictions overestimate the concentration at thelower part of the enclosure at steady state.
KW - Hydrogen safety
KW - Enclosure
KW - Natural ventilation
KW - CFD
KW - Release and dispersion
KW - Benchmark
U2 - 10.1016/j.ijhydene.2014.12.013
DO - 10.1016/j.ijhydene.2014.12.013
M3 - Article
VL - 40
SP - 2415
EP - 2429
JO - International Journal of Hydrogen Energy
T2 - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
IS - 5
ER -