The present invention relates to a power-saving type liquefied-gas-fueled ship that can reduce power consumption of a reliquefaction system in treatment of boil-off gas generated by spontaneous vaporization of liquefied gas in a ship using liquefied gas as fuel, and a method for processing boil-off gas in such a liquefied gas-fueled ship. The power-saving type liquefied-gas-fuel ship includes: a liquefied gas storage tank storing liquefied gas; an engine using the liquefied gas stored in the liquefied gas storage tank or boil-off gas generated by spontaneous vaporization of the liquefied gas as fuel; a fuel feeder supplying the liquefied gas as fuel for the engine; a compressor compressing the boil-off gas to a pressure required for the engine; a heat exchanger cooling the remaining boil-off gas not supplied to the engine among the boil-off gas compressed by the compressor; a refrigerant circulation line in which the refrigerant supplied to the heat exchanger circulates; a refrigerant compressor provided to the refrigerant circulation line and compressing the refrigerant discharged from the heat exchanger after heat exchange in the heat exchanger; and a cold heat recovery device recovering cold heat of the liquefied gas supplied as fuel for the engine to cool the refrigerant compressed by the refrigerant compressor.
POWER-SAVING TYPE LIQUEFIED-GAS-FUEL SHIP AND METHOD FOR PROCESSING BOIL-OFF GAS FOR LIQUEFIED-GAS-FUEL SHIP
STROMSPARENDES FLÜSSIGGAS-BRENNSTOFFSCHIFF UND VERFAHREN ZUR VERARBEITUNG VON BOIL-OFF-GAS FÜR EIN FLÜSSIGGAS-BRENNSTOFFSCHIFF
NAVIRE À COMBUSTIBLE À GAZ LIQUÉFIÉ DE TYPE À ÉCONOMIE D'ÉNERGIE ET PROCÉDÉ DE TRAITEMENT DE GAZ D'ÉVAPORATION POUR NAVIRE À COMBUSTIBLE À GAZ LIQUÉFIÉ
2024-03-27
Patent
Electronic Resource
English
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES |
European Patent Office | 2022
|Power-Saving Liquefied Gas Fueled Ship and Boil-Off Gas Proceeding Method
European Patent Office | 2022
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