@misc{9225027,
  abstract     = {{This thesis evaluates the ability of three hand-calculation models for estimating overpressure
from hydrogen vapour cloud explosions. The models were the TNT, TNO and OHVE models.
The aim was to assess their performance in realistic release environments and identify their
strengths and limitations. Model predictions were validated against experimental data from
three experimental setups: a refuelling station, a storage facility, and pipes. Both premixed gas
clouds and jet release explosions were analysed, except for pipelines where data for jet release
explosions were unavailable. Model performance was quantified using RMSE and MAE. The
results indicate that the TNT model performs poorly at low scaled distances, its pressure curve
does not reflect vapour cloud explosion behaviour, and the established guidelines do not
follow the experimental data. The OHVE model captures pressure decay with distance but
underestimates overpressure in congested environments. The TNO model shows good
agreement when the correct pressure curve is chosen, though current guidelines risk
systematic underestimation. Overall, the models exhibit notable limitations, particularly in
handling obstruction and confinement, indicating a need for improved guidelines and further
research.}},
  author       = {{Wallgren, Emil and Nilsson, Emil}},
  language     = {{swe}},
  note         = {{Student Paper}},
  series       = {{LUTVDG/TVBB}},
  title        = {{Vätgasexplosioner i realistiska utsläppsmiljöer– En validering av beräkningsmodeller för gasmolnsexplosioner}},
  year         = {{2026}},
}