METHOD OF EVALUATING SHAPE OF HEAT EXCHANGER

PROBLEM TO BE SOLVED: To provide a method of evaluating the shape of a heat exchanger which can obtain optimum outer and inner surface shapes in a heat exchanger to which a required object is set. SOLUTION: This method enables the computation of the change of external heat conductivity and heat conduction area due to the change of the shape of an outer surface, that is, the heat conductivity property, and also this enables the computation of the heat conductivity of an internal single phase area and the heat conductivity of an evaporation area by the internal form change. A heat exchanger which has inner and outer shapes capable of exhibiting performance geared to an object can be selected by executing calculation of heat transfer with varying shapes of the inner face and the outer face, calculating processing quantity of LNG (allowable load) as a target function and executing an optimizing analysis so as to maximize the processing quantity of LNG.