Using computational fluid dynamics as a tool for hydrogen safety studies推荐.pdfVIP

Journal of Loss Prevention in the Process Industries 22 (2009) 295–302 Contents lists available at ScienceDirect Journal of Loss Prevention in the Process Industries journal homepage: /locate/jlp Using computational fluid dynamics as a tool for hydrogen safety studies * Prankul Middha , Olav R. Hansen GexCon AS, P.O. Box 6015, Postterminalen, Bergen NO-5892, Norway a r t i c l e i n f o a b s t r a c t Article history: Quantitative Risk Assessments (QRA) of hydrogen applications presents new challenges due to a large Received 1 February 2008 difference in properties of hydrogen and natural gas, namely in reactivity, flammability limits, buoyancy Received in revised form and transport properties. However, it is not realistic to perform an extensive risk assessment for all 22 August 2008 hydrogen applications similar to that carried out for petrochemical installations. On the other hand, Accepted 28 October 2008 simplified tools and techniques based on codes and standards likely have a limited applicability, as these are not able to represent actual geometry and physics of the explosion. Computational Fluid Dynamics Keywords: (CFD) tools have the potential to model the relevant physics, but without proper user guidelines based on CFD Risk assessment extensive validation work, very mixed prediction capability c