A hydrogen refueling station with liquid hydrogen supply
AssigneeNel Hydrogen A/S
InventorLeif Kappel PETERSEN
Life of this patent
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Abstract
A hydrogen refueling station including a number of heaters, an ejector with a first ejector inlet, a second ejector inlet, and an ejector outlet, a storage tank fluidly connectable to the first and second ejector inlets via the heaters and configured to store liquid hydrogen, where valves are configured to control a flow of the liquid hydrogen in conduits between the storage tank and the heaters and gaseous hydrogen in conduits between the heaters and at least one ejector, and where the ejector is configured to receive gaseous hydrogen from at least a first of the plurality of heaters and to simultaneously evacuate gaseous hydrogen from at least a second heater of the plurality of heaters via the second ejector inlet.
Claims27
A hydrogen refueling station comprising:
- a plurality of heaters;
- at least one ejector comprising a first ejector inlet, a second ejector inlet, and an ejector outlet;
- a hydrogen storage tank fluidly connectable to said first ejector inlet and said second ejector inlet via said plurality of heaters, and configured to store liquid hydrogen;
- valves configured to control a flow of said liquid hydrogen in conduits between said hydrogen storage tank and said plurality of heaters and gaseous hydrogen in conduits between said plurality of heaters and said at least one ejector;
- and
- wherein said at least one ejector is configured to receive gaseous hydrogen from at least a first of said plurality of heaters via said first ejector inlet and to simultaneously evacuate gaseous hydrogen from at least a second heater of said plurality of heaters via said second ejector inlet.
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The hydrogen refueling station according to claim 148, wherein the ejectors of said array of ejectors have a different internal geometry.
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A method of filling a receiving vessel with hydrogen gas, said method comprises the steps of:
- establishing a flow of liquid hydrogen from a storage tank to a first heater, receiving said liquid hydrogen in a fixed volume;
- increase pressure in said first heater by establish a phase shift from liquid hydrogen to gaseous hydrogen in said first heater;
- decrease pressure in said first heater by allowing hydrogen in gaseous state to flow from said first heater to a first inlet of an ejector;
- allow flow of gaseous hydrogen from a hydrogen supply to a second inlet of said ejector, wherein said flow is created by the flow of gaseous hydrogen entering said first inlet;
- and
- guide said flow of gaseous hydrogen, mixed from said first and second inlets of said ejector, from an outlet of said ejector to a receiving vessel.
(canceled)
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Dependencies are inferred from the claim text.