Abstract: A liquid hydrogen (LH2) fuel storage system for a fuel cell-powered vehicle, and method includes a main LH2 storage fuel tank configured for close to ambient pressure storage of LH2, and one or more gas accumulator tanks (GATs) smaller than the main LH2 storage fuel tank and configured for elevated pressure storage of LH2 and for feeding pressurized LH2 to the fuel cell, wherein the one or more GATs each have a cooling interface configured to cool the GAT employing LH2 from the main LH2 storage fuel tank, and a heating interface configured to heat contents of the GAT with warm working fluid from the fuel cell-powered vehicle whereby to raise pressure of the LH2 in the GAT to a working pressure for feeding the LH2 to the fuel cell.

Abstract: Disclosed is a re-liquefying device using a boil-off gas as a cooling fluid so as to re-liquefy the boil-off gas generated from a liquefied gas storage tank provided in a ship. A boil-off gas re-liquefying device for a ship comprises: a multi-stage compression unit for compressing boil-off gas generated from a liquefied gas storage tank; a heat exchanger in which the boil-off gas generated from the storage tank and the boil-off gas compressed exchange heat; a vaporizer for heat exchanging the boil-off gas cooled by the heat exchanger and a separate liquefied gas supplied to a fuel demand source of a ship, and thus cooling the boil-off gas; an intermediate cooler for cooling the boil-off gas that has been cooled by the heat exchanger; and an expansion means for branching a part of the boil-off gas, which is supplied to the intermediate cooler, and expanding the same.

Abstract: A method of cooling a boil-off gas (BOG) stream from a liquefied gas tank comprising at least the step of heat exchanging the BOG stream with a first refrigerant in a heat exchanger, the heat exchanger having an entry port and a warmer exit port, and comprising at least the steps of: (a) passing the first refrigerant into the entry port of the heat exchanger and into a first zone of the heat exchanger to exchange heat with the BOG stream, to provide a first warmer refrigerant stream; (b) withdrawing the first warmer refrigerant stream from the heat exchanger at an intermediate exit port between the entry port and the warmer exit port; (c) admixing the first warmer refrigerant stream with an oil-containing refrigerant stream to provide a combined refrigerant stream; (d) passing the combined refrigerant stream into the heat exchanger through an entry port located in a second zone of the heat exchanger that is warmer than the first zone; (e) passing the combined refrigerant stream out of the heat exchanger throu

Abstract: The present invention is a modification of a typical single mixed refrigerant (SMR) cycle for LNG re-liquefaction in particular, that allows the use of a cost-efficient oil-injected screw compressor in the mixed refrigerant system. In comparison with the typical arrangement, the present innovation allows for reduced complexity, fewer pieces of equipment, and reduced capital cost.

Abstract: The invention primarily concerns a facility for storing and cooling a liquefied gas, for example a liquefied natural gas, the facility comprising at least one tank configured to contain the liquefied gas, a closed cooling circuit configured to be supplied with liquefied gas in the liquid state coming from the tank, at least one injection member configured for reinjecting cooled liquefied gas into the tank, the facility being characterized in that it comprises at least one connection line configured to recover a cooled gas from at least one remote container that is separate and independent from the facility.

Abstract: One object of the present invention is to provide a natural gas liquefaction device which uses noncombustible gas as a refrigerant, and can reduce the power consumption a range of relatively low refrigerant pressure, and the present invention provides a natural gas liquefaction device including a compressor which is configured to compress a refrigerant containing noncombustible gas by a plurality of compression stages; a heat exchanger which is configured to cool and liquefy a natural gas to be a liquefied natural gas; a natural gas liquefaction line which is configured to introduce the natural gas into the heat exchanger and supply the liquefied natural gas to an outside; a first refrigerant line which is configured to introduce a refrigerant-1 passed through the compressor into the heat exchanger, and then further introduce the refrigerant-1 into a decompressor; a second refrigerant line which is configured to introduce the refrigerant-2 decompressed by the decompressor into the heat exchanger, and further

Abstract: A fuel cell-based power system comprises a fuel cell configured for continuously receiving a first reactant and a second reactant to produce chemical reactions that generate electrical power, water, and heat, a coolant subsystem configured for circulating a primary coolant in association with the fuel cell, thereby absorbing the generated heat, a tank configured for storing a reactant, and a reactant distribution subsystem configured for conveying the reactant from the tank to an independent system, the fuel cell as the first reactant, and the coolant subsystem as a secondary coolant to remove the absorbed heat from the primary coolant and/or a water accumulator. The secondary coolant may be conveyed to a gas thruster as a gas after the absorbed heat has been removed from the secondary coolant. The reactant may boil off of a cryogenic liquid or vapor or gas transformed from a cryogenic liquid via a heater.

Abstract: A mobile liquid and gaseous hydrogen refueling apparatus including: a main storage module for receiving liquid hydrogen to produce first gaseous hydrogen; a liquid pumping and transporting module for receiving the liquid hydrogen, pumping the liquid hydrogen, and producing second gaseous hydrogen; a gas compressing and storing module for receiving at least one of the first gaseous hydrogen and the second gaseous hydrogen and compressing and storing the at least one gaseous hydrogen; and a gas converting and transporting module for receiving the pumped liquid hydrogen and the compressed gaseous hydrogen, performing heat exchange between the pumped liquid hydrogen and the compressed gaseous hydrogen, producing gaseous hydrogen for refueling, and transporting the gaseous hydrogen for refueling to a gaseous hydrogen fuel consumption structure.

Abstract: An apparatus for reliquefaction of boil-off gas for a vessel, comprises: a compression unit for compressing the boil-off gas discharged from the storage tank; and a heat exchanger for heat-exchanging the compressed boil-off gas compressed by the compression unit with the boil-off gas discharged from the storage tank; a first expansion means for dividing the boil-off gas passing through the heat exchanger into at least two flows including a first flow and a second flow, and expanding the divided first flow; a first intercooler for cooling the second flow remaining after the division of the first flow by using the first flow expanded by the expansion means as a refrigerant; and a receiver for receiving a second flow having passed through the first intercooler, in which a downstream pressure of the compression unit is controlled by a flow discharged from the receiver.

Abstract: A liquid nitrogen-based cooling system features a cooling circuit and a liquid nitrogen-based heat sink. Heat absorbed by fluid flowing in the cooling circuit is subsequently absorbed by liquid nitrogen within the heat sink, which causes the liquid nitrogen to vaporize. The vaporized nitrogen is condensed back to liquid form, e.g., by means of a helium-based cryo-refrigeration system. The heat-sink includes at least a first vessel that contains the liquid nitrogen, with the cooling circuit including a series of coils passing around the first vessel in heat-exchanging contact with an exterior surface thereof so that heat can be transferred into the liquid nitrogen. The first vessel and coils may be contained within a second, outer vessel that minimizes heat transfer from the ambient environment to the fluid flowing in the cooling circuit and the liquid nitrogen within the first vessel.

Abstract: A gas processing system according to an embodiment of the present invention controls inflow fuel pressure of a low pressure demand source according to an operation or a non-operation of a high pressure demand source and the low pressure demand source.

Abstract: A method for turndown of a liquefied natural gas (LNG) plant, the plant including a liquefaction unit arranged in a flow path of the plant, includes removing LNG from a first location in the flow path downstream of the liquefaction unit; vaporizing the removed LNG, or heating the removed LNG so that the removed LNG is transformed to gas phase; and re-admitting the vaporized or transformed LNG to the flow path at a second location upstream of the liquefaction unit. A corresponding LNG plant is also provided.

Abstract: A vessel includes a heat exchanger for heat-exchanging compressed boil-off gas (hereinafter, referred to as “first fluid”) by using, as a refrigerant, the boil-off gas discharged from a storage tank, to cool the same; a main compression part for compressing a part of the boil-off gas discharged from the storage tank; a rest compression part provided in parallel to the main compression part so as to compress the other part of the boil-off gas discharged from the storage tank; and a decompression device for expanding the first fluid having been cooled by exchanging heat with the boil-off gas, which is discharged from the storage tank, in the heat exchanger. The first fluid is a flow in which the boil-off gas compressed by the main compression part and the boil-off gas compressed by the rest compression part join; or the boil-off gas compressed by the main compression part.

Abstract: A method for replenishing the supply of cryogenic liquid from a storage tank (2) includes: pressurizing a container (14) with cryogenic gas at a first pressure, said container having passing through it a first cryogenic fluid flow line referred to as the cold line and a second cryogenic fluid flow line referred to as the hot line, passing cryogenic liquid at a second pressure through the cold line (12), and supplying the container (14) with cryogenic gas at least partially from cryogenic liquid pumped from the storage tank (2) and vaporized. A device is also provided for the method hereinabove.

Abstract: A rotary machine cools a cooling target inside a rotor rotatable around a rotational axis, includes a condenser section disposed outside the rotor and condenses a gas phase cooling medium into a liquid phase cooling medium; an evaporator section disposed inside the rotor, and evaporates the liquid phase cooling medium generated by condensation in the condenser section into the gas phase cooling medium, by heat exchange between the cooling target and the liquid phase cooling medium; and a coupling pipe flows the liquid phase cooling medium and the gas phase cooling medium between the evaporator section and the condenser section, wherein the coupling pipe has a pipe structure in which a liquid phase cooling medium passage flows the liquid phase cooling medium generated by the condensation in the condenser section and a gas phase cooling medium passage flows the gas phase cooling medium generated by evaporation in the evaporator section.

Abstract: A method for cooling a plant for superconductive cables is provided, where the plant includes two thermally insulated end closures (1, 2) and at least one thermally insulated, tubular cryostat (3) arranged between the end closures, in which at least one superconductive cable is arranged. Liquid nitrogen contained in a cooling agent supply is pumped by means of a pump (9) through a first end closure and the cryostat to a second end closure. At least one vacuum insulated tank (7) is used for the cooling agent supply, where the tank (7) contains nitrogen at operating temperature and out of which the nitrogen is pumped. For making available a quantity of liquid nitrogen necessary for operating the plant, the supply of liquid nitrogen contained in the tank (7) is supplemented during operation or is switched over to another tank (10) containing liquid nitrogen.

Abstract: A system for maintaining a substantially constant pressure within an ullage space of a cryogenic storage tank is provided. The system includes a compressor configured to receive fuel gas from the cryogenic storage tank, and compress the fuel gas to produce heated fuel gas. The system further includes a heat exchanger in flow communication with the compressor and configured to cool the heated fuel gas to produce cooled fuel gas, and a turbine in flow communication with the heat exchanger and configured to expand the cooled fuel gas to produce a gas and liquid mixture having a predetermined liquid to gas ratio, and discharge the gas and liquid mixture into the cryogenic storage tank.

Abstract: Systems and methods for optimizing the recondensation of boiloff gas in liquid natural gas storage tanks are presented. In especially preferred aspects of the inventive subject matter, BOG from a storage tank is condensed using refrigeration content of a portion of LNG sendout in a direct or indirect manner, and the BOG condensate and LNG sendout portion are combined to form a subcooled stream that is then combined with the balance of the LNG sendout, to be fed to a high pressure pump. Contemplated recondensation operations advantageously occur without using otherwise needed large volume recondensers. Moreover, the condensing and subcooling operations are decoupled from the LNG sendout rate.

Abstract: A method for filling up a storage tank (e.g., a vehicle tank) with a gaseous, pressurized medium, in particular in the form of hydrogen, in which a supply tank system for storing the hydrogen is connected with the storage tank to be filled by way of a tank feed line and a fueling valve, wherein, prior to filling up the storage tank with aforesaid medium with the fueling valve closed, a flow of the medium for cooling the tank feed line is guided through the tank feed line at a predefinable target temperature, and removed from the tank feed line through a line that branches away upstream from the fueling valve. The disclosure further provides for a fueling facility for filling up a storage tank.

Abstract: A low-temperature device for separating and purifying gas based on a small-sized low-temperature refrigerating machine includes a primary, secondary and quaternary heat exchanger, at least one small-sized low-temperature refrigerating machine, and at least one liquid collecting tank. The small-sized low-temperature refrigerating machine includes a first cold head and a second cold head, the secondary heat exchanger is provided on the first cold head to form a primary cold head heat exchanger, the quaternary heat exchanger is provided on the second cold head to form a secondary cold head heat exchanger, a mixed gas outlet is connected to an inlet of the primary cold head heat exchanger. By using primary and secondary cold heads of the small-sized low-temperature refrigerating machine as cold sources, gases having different condensing temperature are liquefied and solidified separately, and two or more gases can be separated and purified at a lower cost.

Abstract: The present invention relates to a single cycle mixed refrigerant process for industrial cooling applications, for example, the liquefaction of natural gas. The present invention also relates to a refrigeration assembly configured to implement the processes defined herein and a mixed refrigerant composition usable in such processes.

Abstract: A fluid management system for a cryogenic tank may include a liquid acquisition device and a spray injection system. The cryogenic tank may include a tank wall and may contain bulk tank fluid. The liquid acquisition device may acquire and contain cryogenic fluid in substantially liquid phase. The liquid acquisition device may be mounted in spaced relation to the tank wall. The spray injection system may receive the liquid from the liquid acquisition device and may spray the liquid into the bulk tank fluid.

Abstract: Systems and methods are disclosed that expand environmental support for an HVAC system with an HVAC fluid circulating throughout by vaporizing a cryogen; and sparging the vaporized cryogen to dispense sparge bubbles to the HVAC fluid to cool the HVAC fluid.

Abstract: There is provided transmission module (10) for a tractor which is selectively configurable between a CVT arrangement and a multi-ratio powershift transmission arrangement. The module comprises an epicyclic unit (13) in which a first gear element of the epicyclic is driven mechanically from the input shaft (11) and a second gear element of the epicyclic acts as an output of the transmission module. By simply connecting either a CVT unit (24) or a pair of clutches (80) between the input shaft and a third gear element the module (10) can be converted to the desired transmission arrangement. This delivers benefits in a factory for example whereby a large proportion of the assembly can be completed before tailoring the transmission to a customers requirements, thus reducing lead times on delivery.

Abstract: The boil-off gas discharged from a liquid hydrogen storage tank on a liquid hydrogen transport vessel (16) is introduced into the liquid hydrogen stored within liquid hydrogen storage tanks (19, 20) disposed on the ground by passing through a boil-off gas introduction path (17). At least a portion of the boil-off gas is re-liquefied by means of the cold temperature of the liquid hydrogen. The boil-off gas that was not re-liquefied and the gasified hydrogen generated as a consequence of the liquid hydrogen within the liquid hydrogen storage tanks (19, 20) gasifying are mixed with raw material hydrogen by being supplied to the raw material hydrogen path (11) of a liquid hydrogen production device (HS) by passing through a gasified hydrogen discharge path (21). The boil-off gas and the gasified hydrogen are re-liquefied by means of the liquid hydrogen production device (HS).

Abstract: In order to minimize the loss of cryogen during transportation of superconductive magnet systems, or indeed at any time that the refrigerator is turned off, part of the boil-off gas is directed from the cryogen vessel through the refrigerator interface and past the refrigerator to cool the refrigerator. Some of the heat conducted along the refrigerator into the system is intercepted and removed by that part of the boil-off gas. The heat load onto the cryogenic vessel is thereby reduced, which in turn reduces the boil-off of cryogen from the cryogenic vessel. This part of the boil-off gas is then vented from the system along with the remainder of the boil-off gas, for example to leave the cryogenic liquid vessel via the access neck.

Abstract: A thermodynamic pump for provides gaseous hydrogen employing a plurality of liquid hydrogen (LH2) tanks sequentially pressurized with gaseous hydrogen (GH2) from an accumulator. A heat exchanger receiving LH2 from each of the plurality of tanks as sequentially pressurized returns pressurized GH2 to the accumulator for supply to an engine.

Abstract: A system for maintaining a substantially constant pressure within an ullage space of a cryogenic storage tank is provided. The system includes a compressor configured to receive fuel gas from the cryogenic storage tank, and compress the fuel gas to produce heated fuel gas. The system further includes a heat exchanger in flow communication with the compressor and configured to cool the heated fuel gas to produce cooled fuel gas, and a turbine in flow communication with the heat exchanger and configured to expand the cooled fuel gas to produce a gas and liquid mixture having a predetermined liquid to gas ratio, and discharge the gas and liquid mixture into the cryogenic storage tank.

Abstract: A LNG storage and regasification plant includes a reliquefaction unit in which boil-off vapors from the storage tanks are re liquefied and recycled back to the LNG storage tanks for tank pressure and Wobbe index control. Preferably, LNG cold is used for reliquefaction and operational flexibility is achieved by feeding a portion of the pressurized boil-off gas to a fuel gas header and/or to be recondensed by the sendout LNG.

Abstract: A liquefied gas treatment system includes: a first stream of boil-off gas, which is generated from the liquefied natural gas in the cargo tank and is discharged from the cargo tank; a second stream of the boil-off gas, which is supplied as fuel to the engine in the first stream; and a third stream of the boil-off gas, which is not supplied to the engine in the first stream. The first stream is compressed in a compressor and is then branched into the second stream and the third stream. The third stream is liquefied by exchanging heat with the first stream in a heat exchanger, so that the boil-off gas is treated without employing a reliquefaction apparatus using a separate refrigerant.

Abstract: A system in one embodiment includes a heat exchanger, a detection unit, and a controller. The heat exchanger includes a first passage and a second passage configured for exchange of heat therebetween. The first passage is configured to receive a boil-off gas stream of a first cryogenic fluid. The second passage is configured to receive a liquid stream of a second cryogenic fluid. The detection unit is configured to detect a characteristic of the boil-off gas stream. The controller is configured to, responsive to information acquired from the detection unit corresponding to the characteristic, control the flow of the second cryogenic fluid to provide sufficient exchange of heat from the boil-off gas stream via the heat exchanger to condense at least a portion of the boil-off gas stream. A liquid stream of the first cryogenic fluid is output from the first passage and returned to a first tank.

Abstract: The disclosure relates to a method and apparatus for cooling, preferably liquefying a boil off gas (BOG) stream from a liquefied cargo in a floating transportation vessel, said liquefied cargo having a boiling point of greater than ?110° C.

Abstract: A cryocooler for liquefying gas in which the neck of the dewar or cryostat includes a cold end of a cryocooler with the first stage cooling station, the first stage regenerator, the second stage cooling station, the second stage regenerator, and a condenser thermally coupled to the second cooling station. Radiation baffles are also present within the neck portion of the dewar between the storage portion for the dewar and the condenser, such that when the cryocooler is turned off, the radiation baffles reduce heat radiation on the cryogen in the storage section of the dewar.

Abstract: A specialized vessel, of either ship or barge form, that is capable of holding a large number of ISO-sized intermodal LNG tanks and is configured to have the characteristics of both a tanker vessel (e.g., a gas carrier) and a container vessel. The intermodal LNG tanks connect to a piping system of the marine vessel and are thereby interconnected so as to allow the interconnected intermodal LNG tanks to behave as if they constitute a typical LNG vessel bulk liquid tank to facilitate efficient loading at a typical marine LNG terminal. The containerized intermodal LNG tanks are capable of discharging liquids to a marine terminal as if in a bulk mode, or of being disconnected from the common interconnection system to allow lift-off discharge of the intermodal LNG tanks at a typical cargo container port so that the intermodal LNG tanks can enter the existing intermodal transportation system.

Abstract: A turret subassembly for use as part of a cryostat, the turret subassembly comprising a vent tube (32) housing an auxiliary vent (40); a refrigerator sock (34) for housing a refrigerator; a termination box (30) linking the vent tube and the refrigerator sock, and having an opening (52) in one wall (54); and means (38) for attachment of the turret subassembly to a cryogen vessel (12).

Abstract: A cryogenic storage tank comprises a partition that divides a cryogen space into a main storage space and an auxiliary space. A valve disposed inside the cryogen space is associated with a first fluid passage through the partition. The valve comprises a valve member that is actuatable by fluid forces within the cryogen space. A second fluid passage through the partition comprises a restricted flow area that is dimensioned to have a cross-sectional flow area that is smaller than that of a fill conduit such that there is a detectable increase in back-pressure when the main storage space is filled with liquefied gas.

Abstract: A boil-off gas processing apparatus for reliquefying a boil-off gas (22) generated within a liquefied gas tank (2) storing a liquefied gas (21) and returning the reliquefied gas to the interior of the liquefied gas tank (2) includes a boil-off gas discharge line (3) configured to discharge the boil-off gas (22) from the liquefied gas tank (2) to outside, and a boil-off gas reliquefaction line (4) configured to immerse at least part of the boil-off gas discharge line (3) in the liquefied gas (21) within the liquefied gas tank (2). The boil-off gas reliquefaction line (4) includes a pressure holding device (42) configured to maintains a pressure necessary for reliquefaction of the boil-off gas (22) and has a length (L) sufficient to be able to absorb an amount of heat necessary for reliquefaction of the boil-off gas (22).

Abstract: A cryogenic system for a superconducting magnet comprises a closed-loop cooling path. The closed-loop cooling path comprises a magnet cooling tube thermally coupled to the superconducting magnet. The magnet cooling tube comprises a cryogen flow passage. The closed-loop cooling tube further comprises a re-condenser is fluidly coupled to the magnet cooling tube through tube sections and a liquid cryogen container fluidly coupled between the magnet cooling tube and the re-condenser. At least one gas tank is fluidly coupled to the magnet cooling tube through a connection tube.

Abstract: A cryogenic fuel storage system for an aircraft is disclosed including a cryogenic fuel tank having a first wall forming a storage volume capable of storing a cryogenic liquid fuel; an inflow system capable of flowing the cryogenic liquid fuel into the storage volume; an outflow system adapted to deliver the cryogenic liquid fuel from the cryogenic fuel storage system; and a vent system capable of removing at least a portion of a gaseous fuel formed from the cryogenic liquid fuel in the storage volume.

Abstract: The Superconducting Electrodynamic Turbine produces thrust by transferring momentum to the Earth, via the geomagnetic field. A pair of counter-rotating electrodynamic rotors, that are made from a Superconductor, act together to displace the surrounding geomagnetic field. The rotation of a Superconductor in the geomagnetic field, referred to as the exciting field, creates persistent eddy currents in the Superconductor. Lenz's Law states that an induced eddy current produces a magnetic field that opposes the relative change in the exciting field. A continuous increment of energy, or work, has to be expended to overcome the opposing force and to keep the counter-rotating electrodynamic rotors rotating at a constant rate. This work is transferred to the magnetic field. The Electrodynamic Turbine produces a unidirectional displacement in the exciting magnetic field, creating a force or thrust.

Abstract: An LNG vaporization equipment is provided with: a nitrogen supply apparatus (2); a heating apparatus (4) that heats nitrogen supplied from the nitrogen supply apparatus; vaporizers (6A, 6B, 6C) that vaporize LNG by means of a heat exchange between the nitrogen heated by the heating apparatus and the LNG that is fed out from an LNG tank (1); and a recirculation line (7) which, after the nitrogen after the heat exchange that has been discharged from the vaporizers has been used to reduce the amount of BOG that is generated or has been used for reliquefaction, recirculates it to the heating apparatus. By employing this structure, it is possible to provide the LNG vaporization equipment that is able to use the cooling energy of LNG to reduce the quantity of BOG that is generated, or for reliquefaction.

Abstract: Marine LNG carrier and method of operating the marine LNG carrier. The LNG carrier carries LNG in at least one tank. Gas composed of evaporated LNG within the at least one tank is removed. The gas is fed to at least one gas consuming prime mover of the LNG carrier. Power is provided with the at least one gas consuming prime mover. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: One embodiment of the present invention is a portable natural gas discharge system for discharging compressed natural gas into a receiving location. The system comprises a portable chassis for holding the natural gas discharge system and all subcomponents, an inlet port for receiving the natural gas at an inlet pressure higher than a pressure of the receiving location, an expansion valve for regulating pressure of the natural gas to a stable intermediate pressure, a heat exchanger for heating up the cooled natural gas stream as a result of cooling due to expansion, a regulator for regulating a flow of the heated natural gas stream through the heat exchanger and out of the portable natural gas discharge system, and a discharge port for discharging the heated natural gas stream into the receiving location.

Abstract: A boil-off gas (BOG) stream (15) from a liquefied hydrocarbon storage tank is split into a BOG heat exchanger feed stream (25) and a BOG bypass stream (35). The BOG heat exchanger feed stream (25) is heat exchanged in a BOG heat exchanger (40) against a process stream (135), thereby providing a warmed BOG stream (45) and a cooled process stream (195). The warmed BOG stream (45) is combined with the BOG bypass stream (35) to provide a temperature controlled BOG stream (55).

Abstract: A method for reliquefying boil-off gas generated in a cargo tank of a liquefied natural gas ship generally includes the steps of compressing boil-off gas generated in the cargo tank with a compressor, sub-cooling the compressed boil-off gas in a heat exchanger, feeding the liquefied gas to a gas phase separator, venting flash gas generated in the gas phase separator through a first pipe, feeding the vented flash gas from the gas phase separator to a gas combustion unit of the ship via the first pipe, oxidizing the vented flash gas in the gas combustion unit, diverting a portion of the compressed boil-off gas from the compressor through a second pipe, feeding the diverted portion of compressed boil-off gas from the compressor to an upper region of the gas-phase separator and returning liquefied gas from the gas-phase separator to the cargo tank.

Abstract: A superconducting magnet assembly and method of cooling a superconducting magnet assembly.

Abstract: A fuel tank safety system includes a heat exchanger in flow communication with a cabin conditioning system, a blower configured to withdraw a quantity of ullage gas from a vehicle fuel tank for routing through the heat exchanger, and conduit interconnecting the fuel tank, the blower, and the heat exchanger. The heat exchanger is configured to reduce a temperature of the ullage gas using cooling providing by the cabin conditioning system and thus reduce the fuel content (or fuel-air ratio) of the ullage below threshold required for combustion.

Abstract: A method for storage and transport of LPG on LPG carriers, in particular two cargoes of different LPG types on same shipment, having reliquefaction units (300, 400) in which vaporized gases are condensed and then returned into at least one cargo tank (100) for the respective LPG cargo type. The method is further comprising: using the reliquefaction units (300, 400), at a minimum one running, as to condense vapour from the first cargo type; passing the condensed vapour through a heat exchanger (500); simultaneously flowing vapour from the second cargo type through the heat exchanger (500) as to condense vapour by means of heat exchanging with the condensed vapour; and returning the condensed vapours leaving the heat exchanger back into the respective cargo types. The present invention is also disclosing a system for storage and transport of LPG on LPG carriers.

Abstract: A method and apparatus for the controlled storage of liquefied gases such as liquefied natural gas in an enclosed insulated container, in which part of the liquid is withdrawn and fed to an external refrigeration unit for subcooling and the subcooled liquid is reintroduced into the container via one or more valve-controlled headers under the control of a control system operated in response to pressure and temperature signals from within the container, wherein the level of subcooling is matched to the heat inleak into the container and most or all of the subcooled liquid is reintroduced directly into the stored liquid so as to maintain stable conditions in the stored liquid and to minimise evaporation thereof.

Abstract: A cryogenic system comprises: a liquid helium vessel containing liquid helium (LHe) in which are immersed superconducting magnet windings (20); a helium condenser (30); a neck (32) providing fluid communication between the liquid helium vessel and the helium condenser; a heater (42) disposed outside of and not surrounding the neck; and a thermally conductive passive deicing member (50) disposed in the neck, the thermally conductive passive deicing member thermally coupled with the heater to conduct heat from the heater into the neck. A deicing method for deicing a neck (32) of a liquid helium vessel of a superconducting magnet system comprises generating heat at a location (30, 42) outside of the neck and conducting an amount of the generated heat effective for deicing the neck from outside of the neck through an opening of the neck and into the neck to deice the neck.