Abstract: A liquid hydrogen reservoir and a method for operating a liquid hydrogen reservoir. The liquid hydrogen reservoir includes a cryostatic container operable to hold liquid hydrogen; a discharge line operable to discharge gaseous hydrogen in the cryostatic container; a boil-off management system (BMS), a return line, and a boil-off valve (BOV). The BMS that includes a mixing chamber operable to mix the gaseous hydrogen with ambient air, a catalyst arranged downstream of the mixing chamber and operable for a catalytic conversion of the gaseous hydrogen with the ambient air, and an exhaust gas line arranged downstream of the catalyst and operable to discharge the gas stream to the environment. The return line is operable to connect the exhaust gas line to the mixing chamber to facilitate a return flow of at least a partial stream of the exhaust gas line into the mixing chamber.

Abstract: A boil-off management system for a cryotank includes a boil-off conduit which is fluidically connectable to a cryotank via a boil-off valve. The boil-off management system further includes an air feed conduit and a mixing chamber for mixing a first medium (e.g., hydrogen) flowing in through the boil-off conduit with a second medium (e.g., air and/or oxygen) flowing in through the air feed conduit. A catalytic converter is arranged downstream of the mixing chamber and an outlet downstream of the catalytic converter. At least one enrichment apparatus is provided and configured to temporarily increase the proportion of the first medium flowing in through the boil-off conduit in relation to the second medium flowing in through the air feed conduit at the catalytic converter.

Abstract: A liquid hydrogen store including a cryostatic container for holding the liquid hydrogen, a discharge line for discharge of gaseous hydrogen, a boil-off management system, a boil-off valve in the discharge line for selective opening and closing of a fluidic connection of the discharge line to the boil-off management system, a heat transport line, and one or more thermal contact members to establish thermal contact of the heat transport line with the boil-off management system.

Abstract: A liquid hydrogen reservoir and a method for operating a liquid hydrogen reservoir. The liquid hydrogen reservoir includes a cryostatic container operable to hold liquid hydrogen; a discharge line operable to discharge gaseous hydrogen in the cryostatic container; a boil-off management system (BMS), a return line, and a boil-off valve (BOV). The BMS that includes a mixing chamber operable to mix the gaseous hydrogen with ambient air, a catalyst arranged downstream of the mixing chamber and operable for a catalytic conversion of the gaseous hydrogen with the ambient air, and an exhaust gas line arranged downstream of the catalyst and operable to discharge the gas stream to the environment. The return line is operable to connect the exhaust gas line to the mixing chamber to facilitate a return flow of at least a partial stream of the exhaust gas line into the mixing chamber. The BOV is arranged in the discharge line and operable to selectively open and close a flow connection of the discharge line to the BMS.