본 발명은 LNG 운반선 내의 LNG를 저장하는 화물창 내에서의 LNG 자연 기화율(BOR, boil off rate)을 계산하는 방법에 관한 것이다. 본 발명의 실시예에 따르면, 화물창 내의 LNG BOR을 계산하는 방법에 있어서, 상기 화물창의 횡단면과 상기 횡단면의 주변부를 유한 요소법을 이용하여 모델링하여 상기 횡단면에 대한 유입 열량을 계산하는 단계; 상기 화물창의 종단면과 상기 종단면의 주변부를 유한 요소법을 이용하여 모델링하여 상기 종단면에 대한 유입 열량을 계산하는 단계; 상기 횡단면에 대한 유입 열량 및 상기 종단면에 대한 유입 열량을 이용하여 상기 화물창에 유입된 총 유입 열량을 계산하는 단계; 및 상기 총 유입 열량을 이용하여 BOR을 계산하는 단계를 포함하는, 화물창 내의 LNG BOR 계산 방법이 제공된다.
The present invention relates to a method to calculate an LNG boil off rate (BOR) in a cargo system to which the LNG is stored in an LNG carrier. According to an embodiment of the present invention, the method to calculate the LNG BOR in a cargo system comprises: a step of calculating an inflow quantity of heat against a horizontal cross section of the cargo system by modeling the horizontal cross section and the perimeters of the horizontal cross section of the cargo system with a finite element method; a step of calculating the inflow quantity of heat against a vertical cross section of the cargo system by modeling the vertical cross section and the perimeters of the vertical cross section of the cargo system with the finite element method; a step to calculate the total inflow quantity of heat using the inflow quantity of heat for the horizontal and vertical cross sections; and a step to calculate the BOR using the total inflow quantity of heat.
LNG BOR METHOD FOR CALCULATING LNG BOIL OFF RATE IN CARGO SYSTEM
화물창 내의 LNG BOR을 계산하는 방법
12.01.2016
Patent
Elektronische Ressource
Koreanisch
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES / B65D Behältnisse zur Lagerung oder zum Transport von Gegenständen oder Materialien [Container], z.B. Säcke, Beutel, Fässer, Flaschen, Dosen, Kästen, Büchsen, Schachteln, Packkörbe, Tonnen, Gläser, Flüssigkeitsbehälter, Trichtersilos, Transportbehälter , CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
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