摘要:
A ship includes: a boil-off gas heat exchanger which heat-exchanges a compressed boil-off gas (“a first fluid”) by means of a boil-off gas discharged from the storage tank as a refrigerant; a compressor installed on the downstream of the boil-off gas heat exchanger and compressing a part of the boil-off gas discharged from the storage tank; first and second extra compressors provided in parallel with the compressor on the downstream of the boil-off gas heat exchanger and compressing the other part of the boil-off gas discharged from the storage tank; a refrigerant heat exchanger which additionally cools the first fluid cooled by means of the boil-off gas heat exchanger; a refrigerant decompressing device which expands a second fluid, which has been sent to the refrigerant heat exchanger and cooled by means of the refrigerant heat exchanger, and then sending the expanded second fluid back to the refrigerant heat exchanger.
摘要:
A ship including a liquefied gas storage tank includes: first and second compressors which compresse a boil-off gas discharged from a storage tank; a boost compressor which compresses one part of the boil-off gas that is compressed by at least any one of the first compressor and/or the second compressor; a first heat exchanger which heat exchanges the boil-off gas compressed by the boost compressor and the boil-off gas discharged from the storage tank; a refrigerant decompressing device which expands the other part of the boil-off gas that is compressed by at least any one of the first compressor and/or the second compressor; a second heat exchanger which cools, by a fluid expanded by the refrigerant decompressing device as a refrigerant; and an additional compressor which is compresses the refrigerant that passes through the refrigerant decompressing device and second heat exchanger.
摘要:
A ship including a storage tank for storing a liquefied gas includes: a boil-off gas (BOG) heat exchanger installed on a downstream of a storage tank and heat-exchanges a compressed BOG (“a first fluid”) by a BOG discharged from the storage tank as a refrigerant, to cool the BOG; a compressor installed on a downstream of the BOG heat exchanger and compresses a part of the BOG discharged from the storage tank; an extra compressor installed on a downstream of the BOG heat exchanger and in parallel with the compressor and compresses the other part of the BOG discharged from the storage tank; a refrigerant heat exchanger which additionally cools the first fluid cooled by the BOG heat exchanger; and a refrigerant decompressing device which expands a second fluid sent to the refrigerant heat exchanger, and then sends the second fluid back to the refrigerant heat exchanger.
摘要:
A method of continuously conveying compressed gas to a plurality of vehicles, where the plurality of vehicles includes at least a first vehicle having a higher tank pressure and a second vehicle having a lower tank pressure that are simultaneously seeking compressed gas from the same delivery conduit. The method includes compressing gas using at least one compressor, conveying the compressed gas from the at least one compressor to a backpressure apparatus, conveying a non-bypass fill portion through the backpressure apparatus, diverting a bypass fill portion through a bypass conduit to at least one distributor, conveying the bypass fill portion through the at least one distributor to at least one of the one or more delivery conduits and subsequently to at least the first vehicle, and conveying the non-bypass fill portion through at least one of the one or more the delivery conduits to at least the second vehicle.
摘要:
A method for filling at least one buffer container of a hydrogen filling station, the station comprising a fluid circuit linked to said at least one buffer container, the circuit of the filling station comprising a first end linked to at least one source of hydrogen gas, the circuit comprising a second end provided with a transfer conduit intended to be removably connected to a tank, the method being characterized in that it comprises a step of determining the current concentration of at least one impurity in the hydrogen in the buffer container during the filling of same, a step of comparing said current concentration of the impurity relative to a predefined threshold concentration and, when the current concentration of the at least one impurity reaches said threshold concentration, stopping the filling of said buffer container.
摘要:
A compressed gas delivery system includes a control system and at least one compressor fluidly connected to the control system for providing a compressed gas to the control system. The system also has a backpressure apparatus that is fluidly connected between the at least one compressor and the control system. The backpressure apparatus conveys a portion of the compressed gas to the control system. The compressed gas delivery system also includes a bypass conduit that is fluidly connected between the at least one compressor and the backpressure apparatus. The bypass conduit conveys a portion of the compressed gas through the flow limiting distributor directly to one or more vehicles during a dispensing operation.
摘要:
A compressed natural gas storage and dispensing system having bulk storage tanks in fluid communication with a natural gas supply source; a primary compressor delivering the natural gas to the bulk storage tanks; dispensing storage tanks in fluid communication with the bulk storage tanks and in fluid communication with fuel dispensers; a secondary compressor delivering the natural gas to the dispensing storage tanks from the bulk storage tanks; wherein when the pressure within the dispensing storage tanks falls below a predetermined minimum pressure, natural gas is delivered from the bulk storage tanks to the dispensing storage tanks, and wherein when the pressure in the bulk storage tanks falls below a predetermined minimum pressure, natural gas is delivered from the supply source to the bulk storage tanks.
摘要:
A vessel of a heat storage and release apparatus, the vessel comprises a shell comprising a metallic material, the shell having an elongated shape with a first end region and a second end region remote from the first end region, and an internal surface defining a cavity configured to contain a heat storage and release device and to guide gas-flow; a first opening through the shell for a flow of gas at high temperature and high pressure, the first opening being located in the first end region; a second opening through the shell for a flow of gas at low temperature and high pressure, the second opening being located in the second end region; and a lining of thermally insulating material adjacent to the internal surface and only partially covering the internal surface, the lining being located at least in the first end region.
摘要:
A system and method of receiving field gas from a compressor station pipeline, and compressing the gas at a remote location with a modular compressor. The compressed gas is collected in a container and transported to a wellsite for use at the wellsite. The gas from the pipeline is directed to the container, and diverted to the modular compressor when pressure in the container approaches pressure in the pipeline. The modular compressor discharge is piped to the container, so that the container is filled with additional gas and at the discharge pressure of the modular compressor.
摘要:
An apparatus and method for supplying gaseous fuel from a tender car to an internal combustion engine on a locomotive comprising storing the gaseous fuel at a cryogenic temperature in a cryogenic storage tank on the tender car; pumping the gaseous fuel to a first pressure from the cryogenic storage tank; vaporizing the gaseous fuel at the first pressure; and conveying the vaporized gaseous fuel to the internal combustion engine; whereby a pressure of the vaporized gaseous fuel is within a range between 310 bar and 575 bar.