Storage of liquid hydrogen
AssigneeDeutsche Forschungs- und Versuchsanstalt fur Luft- und Raumfahrt e.V.
InventorWalter Peschka
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Abstract
Hydrogen evaporating in a liquid hydrogen tank is fed to a fuel cell generating electrical energy used to drive a cooling unit which cools the tank.
Claims9
A method of increasing the storage time of a liquid hydrogen tank, comprising the steps of feeding hydrogen evaporating in the tank to a hydrogen fuel cell, generating electrical energy by means of the fuel cell, utilizing electrical energy generated by the fuel cell to drive a cooling unit, and cooling the tank by means of the cooling unit.
Apparatus for storing liquid hydrogen, comprising a liquid hydrogen tank, an outlet line for removing evaporated hydrogen from the tank, a hydrogen fuel cell having a hydrogen gas intake communicating with the outlet line, an electrically powered cooling unit arranged to cool the tank, and means for transmitting electrical energy from the fuel cell to the cooling unit.
Dependencies are inferred from the claim text.