Modelling the conjugate heat transfer during the fast-filling of high-pressure hydrogen vessels for vehicular transport

Christian Hall*, Vishagen Ramasamy

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Downloads (Pure)

Abstract

Compressed gas in cylinders is currently the preferred solution for storing hydrogen on board vehicles. Fast-filling combined with high storage pressures is required to meet competitive targets of long driving ranges and short refuelling times. Experiments and CFD models have shown that the fast-filling leads to significant rise in temperature within the hydrogen cylinder, which can lead to its structural failure. Thus, controlling the rise in temperature is vital during the refuelling process. This paper describes the implementation of a universal thermodynamic model that determines the gas and structural temperature during the fast-filling of hydrogen cylinders. It includes the computation of conjugate heat transfer from the gas to the cylinder structure. The thermodynamic model requires negligible computational time without compromising accuracy and can used to implement different fast-filling scenarios on a laptop or personal computer. The flexibility and robustness of the model is shown as it is capable of modelling the fast-filling of cylinders while varying different key parameters such as fill time, structural material, cylinder volume, final pressure, filling rate, initial temperatures and pressures.
Original languageEnglish
Article number100527
Number of pages9
JournalInternational Journal of Thermofluids
Volume21
Early online date30 Nov 2023
DOIs
Publication statusPublished - 1 Feb 2024

Keywords

  • Hydrogen cylinder
  • Fast-filling
  • Heat transfer
  • CFD
  • Thermodynamic model

Fingerprint

Dive into the research topics of 'Modelling the conjugate heat transfer during the fast-filling of high-pressure hydrogen vessels for vehicular transport'. Together they form a unique fingerprint.

Cite this