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Fuel Cells and Hydrogen Joint Undertaking (FCH JU); Summary of experiment series E3.5

Lyons, K.; Coldrick, S.; Atkinson, G.


This report summarises the ‘rainout’ experiments undertaken by HSE, which was an
experimental investigation into the release characteristics and dispersion of elevated spills of
LH 2 , including the propensity for rainout to form.
A series of 25 LH 2 releases from a tanker delivery hose at elevated positions were carried out
through 6 mm, 12 mm and 25.4 mm nozzles with an indicated tanker pressure of 1 or 5 barg.
The dispersion from these releases was measured using hydrogen concentration and
temperature measurements. Other attributes such as pressure, mass flow rate and temperature
were measured in the pipework to provide an understanding of the release characteristics. The
experiments were carried out at the LH 2 release facility, which was located on a 32 m diameter
concrete pad at the Frith Valley site at the HSE Science and Research Centre in Buxton.
While no evidence of rainout was found during these releases, evidence of rainout immediately
after a release was observed. Further to this, condensed components of air formed around the
release point and on impingements. Pools were only formed with low, vertically downward
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Zugehörige Institution(en) am KIT Institut für Thermische Energietechnik und Sicherheit (ITES)
Publikationstyp Forschungsdaten
Publikationsdatum 16.08.2021
Erstellungsdatum 01.10.2019 - 01.06.2020
Identifikator DOI: 10.5445/IR/1000136281
KITopen-ID: 1000136281
HGF-Programm 38.03.02 (POF IV, LK 01) Power-based Fuels and Chemicals
Lizenz Creative Commons Namensnennung – Weitergabe unter gleichen Bedingungen 4.0 International
Externe Relationen Siehe auch
Schlagwörter LH 2 , liquid hydrogen, rainout, cryogenic, dispersion, gas concentration, hydrogen jet, hydrogen cloud, mass flow rate

exel file consists of data from following sensors, obtained during experiments:
• near‐field thermocouples
• far‐field thermocouples
• pressure sensor
• tank Pressure sensor
• mass flow sensor
• H2 concentration sensors
• H2 PPM
• O2 depletion
• near‐field weather station PCE
• far‐field wind sensor
• far‐field humidity sensor
and videos getted during experiments.

Art der Forschungsdaten Dataset
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