International Journal of Hydrogen Energy, May 5, 2014, Vol.39(14), p.7356(9)
To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.ijhydene.2014.02.166 Byline: Frank Markert, Daniele Melideo, Daniele Baraldi Abstract: Evaluations of the performance of simplified engineering and CFD models are important to improve risk assessment tools e.g. to predict accurately releases from various types of hydrogen storages. These tools have to predict releases from a wide range of storage pressures (up to 80 MPa) and temperatures (down to 20 K), e.g. cryogenic compressed gas storage covers pressures up to 35 MPa and temperatures between 33 K and 338 K. Accurate calculations of high pressure releases require real gas EOS. This paper compares a number of EOS to predict hydrogen properties typical in different storage types. The vessel dynamics are modeled using a simplified engineering and a CFD model to evaluate the performance of various EOS to predict vessel pressures, temperatures mass flow rates and jet flame lengths. It is shown that the chosen EOS and the chosen specific heat capacity correlation are important to model accurately hydrogen releases at low temperatures. Author Affiliation: (a) Department of Management Engineering, Technical University of Denmark, Produktionstorvet 424, DK-2800 Kongens Lyngby, Denmark (b) Institute for Energy and Transport, Joint Research Centre European Commission, Westerduinweg 3, P.O. Box 2, 1755 ZG Petten, The Netherlands Article History: Received 6 January 2014; Revised 15 February 2014; Accepted 27 February 2014
Hydrogen -- Analysis
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