METHOD FOR CALCULATING LNG BOIL OFF RATE IN CARGO SYSTEM

摘要

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.