UNCERTAINTIES IN RISK ASSESSMENT OF HYDROGEN DISCHARGES FROM PRESSURIZED STORAGE VESSELS AT LOW TEMPERATURES

Abstract: Evaluations of the uncertainties resulting from risk assessment tools to predict releases from the various hydrogen storage types are important to support risk informed safety management. The tools have to predict releases from a wide range of storage pressures (up to 80 MPa) and temperatures (at 20K) e.g. the cryogenic compressed gas storage covers pressures up to 35 MPa and temperatures between 33K 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 to evaluate the performance of various EOS to predict exit pressures and temperatures. The results are compared to experimental data and results from CFD calculations.
Authors
Authors: 
MARKERT Frank, MELIDEO Daniele, BARALDI Daniele
Publication Year
Publication Year: 
2013
Type

Type:

Appears in Collections
Appears in Collections: 
Institute for Energy and Transport
Science Areas
Science Areas: 
JRC Institutes
IET
Publisher
Publisher: 
International Association for Hydrogen Safety (HySafe)
Citation
Citation: 
International Conference on Hydrogen Safety p. paper no. 219
Research Topics