APPARATUS FOR STORING HYDROGEN AND MAGNETIC ENERGY AND A METHOD FOR THE OPERATION OF SAID APPARATUS
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United States of America Patent
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Issued Date -
Jan 2, 2014
app pub date -
Mar 6, 2012
filing date -
Mar 10, 2011
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Abstract
An apparatus for storing hydrogen and magnetic energy includes a storage tank for liquefied hydrogen with an inlet line for compressed hydrogen and an outlet line for hydrogen at a relatively low pressure. The apparatus includes a superconducting magnetic energy store, which comprises a magnetic coil relative to which electrical energy can be supplied or withdrawn via power supply lines to the magnet coil, the energy being located in a cryogenic tank provided with a cooling device and being held at operating temperature. The storage tank for liquefied hydrogen includes cooling device, at least one regenerator, with a heat-absorbing and heat-emitting storage medium, a warm side and a cold side. From the warm side, the compressed hydrogen and, from the cold side, liquefied hydrogen can be supplied from the storage tank for liquefied hydrogen. A relief valve is located in the field region of the at least one magnet coil. The relief valve is connected to the cold side of the regenerator so the compressed hydrogen, having passed through the regenerator, can be fed into the relief valve and, owing to the pressure relief, can be supplied, at least partially as liquefied hydrogen to the storage tank for liquefied hydrogen.
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