The present invention relates to a boil-off gas reliquefaction method for an LNG vessel. The boil-off gas reliquefaction method includes: a step (1) of compressing boil-off gas; a step (2) of cooling the boil-off gas compressed in the step (1) by heat exchange with a heat exchanger using the boil-off gas as a refrigerant; a step (3) of expanding a fluid that results from cooling in the step (2); and a step (4) of stably maintaining a reliquefaction performance even when a flow rate of the boil-off gas to be reliquefied changes, the boil-off gas being supplied to the heat exchanger after being compressed in the (1) compressing of the boil-off gas, wherein the amount of boil-off gas reliquefied through the steps (1) to (3) is maintained equal to or greater than 50% of a calculated value by HYSYS.

    LNG 선의 증발가스 재액화 방법이 개시된다. 상기 LNG 선의 증발가스 재액화 방법은, 1) 증발가스를 압축시키는 단계; 2) 증발가스를 냉매로 상기 1)단계에서 압축된 증발가스를 열교환기에 의해 열교환시켜 냉각시키는 단계; 3) 상기 2)단계에서 냉각된 유체를 팽창시키는 단계; 및 4) 상기 1)단계에서 압축된 후 상기 열교환기로 공급되는 재액화 대상 증발가스의 유량이 변동되어도 재액화 성능을 안정적으로 유지하는 단계;를 포함하고, 상기 1)단계 내지 3)단계를 거쳐 재액화된 증발가스의 양이 HYSYS에 의한 계산값의 50% 이상으로 유지된다.


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    Titel :

    LNG Boil-Off Gas Reliquefaction Method and System for LNG Vessel


    Weitere Titelangaben:

    LNG 선의 증발가스 재액화 방법 및 시스템


    Beteiligte:
    JUNG HAE WON (Autor:in) / KANG DONG EOK (Autor:in) / LEE JOON CHAE (Autor:in) / CHOI DONG KYU (Autor:in)

    Erscheinungsdatum :

    2018-07-19


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES



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