Parametric study on tank integration for hydrogen civil aviation propulsion

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dc.contributor.authorHuete, Jon
dc.contributor.authorPilidis, Pericles
dc.date.accessioned2021-10-04T14:14:42Z
dc.date.available2021-10-04T14:14:42Z
dc.date.issued2021-09-30
dc.description.abstractHydrogen powered gas turbine propulsion will play a central role in the decarbonisation of civil aviation. A key challenge is the integration of large liquid hydrogen tanks into the aircraft, given the low density of liquid hydrogen. Hydrogen offers a quarter of the energy content, per unit volume and one third of the fuel weight, when compared to a conventional fuel. Optimising tank weight is seen as key to aircraft usefulness. A detailed evaluation of tanks for civil aviation is presented here, covering a very wide range of sizes and design solutions. For passenger air transport, if the choice is made not to vent, dormancy time (the time the tank can be allowed to operate without vapour or important fuel extraction) becomes a key design parameter. This paper highlights the interdependence of Maximum Allowable Operating Pressure and the amount of insulation with heating and venting, considering the influence of dormancy time. The resulting tank gravimetric efficiency is presented for cylindrical tanks with hemispheric ends (a very likely choice for tank design). Notwithstanding conservative analysis, tank gravimetric efficiencies of 65–70% can be achieved. This permits combined fuel and tank weights that are less than half of those of current aircraft. The issue that then becomes critical is the resulting large tank and aircraft volume.en_UK
dc.identifier.citationHuete J, Pilidis P. (2021) Parametric study on tank integration for hydrogen civil aviation propulsion. International Journal of Hydrogen Energy, Volume 46, Issue 74, October 2021, pp. 37049-37062en_UK
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2021.08.194
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/17134
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectHydrogenen_UK
dc.subjectPropulsionTanken_UK
dc.subjectLong-rangeen_UK
dc.subjectAircraften_UK
dc.titleParametric study on tank integration for hydrogen civil aviation propulsionen_UK
dc.typeArticleen_UK

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