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US 12,504,125 B2Granted
Hydrogen fueling systems and methods
AssigneeIvys Inc.
InventorsDarryl Edward Pollica, Christopher John O'Brien, Bryan Gordon
Life of this patent
Estimating the term…
Abstract
According to aspects, hydrogen fueling systems and methods are provided, including vehicle-to-vehicle communication techniques, hydrogen cooling techniques and/or hydrogen dispenser control techniques that facilitate improving aspects of a hydrogen fueling station. According to one aspect, an annular heat exchanger adapted to operate in a high-pressure and high-UA hydrogen fueling environment is provided.
Claims19
An annular heat exchanger comprising:
- a shell having a coolant inlet and a coolant outlet;
- at least one coil comprising tubing concentrically arranged within the shell, the tubing having a wall thickness between 0.03 and 0.08 inches and a length between 30 and 50 feet, the at least one coil further comprising a hydrogen inlet and a hydrogen outlet and having between 20 and 35 turns;
- a plurality of fins attached to the at least one coil;
- and
- at least one baffle arranged concentrically within the at least one coil to increase velocity and turbulence of coolant circulated through the shell, the at least one baffle comprising a plurality of pilot holes,
- wherein the annular heat exchanger is configured to chill hydrogen gas that is caused to flow through the at least one coil via the hydrogen inlet and the hydrogen outlet via heat exchange with coolant that is caused to circulate through the shell via the coolant inlet and the coolant outlet.
3 more elements
An annular heat exchanger comprising:
- a shell having a coolant inlet and a coolant outlet;
- at least one coil comprising nickel alloy tubing concentrically arranged within the shell, the at least one coil having a hydrogen inlet and a hydrogen outlet;
- and
- a plurality of copper fins brazed to the at least one nickel alloy coil using silver or a silver alloy, wherein the annular heat exchanger is configured to chill hydrogen gas that is caused to flow through the at least one coil via the hydrogen inlet and the hydrogen outlet by heat exchange with coolant that is caused to circulate through the shell via the coolant inlet and the coolant outlet;
- and
- at least one baffle arranged concentrically within the at least one coil to increase velocity and turbulence of coolant circulated through the shell, the at least one baffle comprising a plurality of pilot holes.
3 more elements
Dependencies are inferred from the claim text.