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.
|Title of host publication||Proceedings of 5th International Conference on Hydrogen Safety|
|Number of pages||13|
|Publication status||Published - 2013|
|Event||5th International Conference on Hydrogen Safety - Brussels, Belgium|
Duration: 9 Sep 2013 → 11 Sep 2013
Conference number: 5
|Conference||5th International Conference on Hydrogen Safety|
|Period||09/09/2013 → 11/09/2013|
Markert, F., Melideo, D., & Baraldi, D. (2013). Uncertainties in risk assessment of hydrogen discharges from pressurized storage vessels at low temperatures. In Proceedings of 5th International Conference on Hydrogen Safety ICHS.