A Feasibility Study on a Podded Propulsion LNG Tanker in Arun, Indonesia ¨C Osaka, Japan Route

摘要

In the present paper, an economical-environmental model for the evaluation of a marine transportation system is proposed. In the model, a transportation system is evaluated based on an economical environmental index. The index is determined by dividing an economical impact by an environmental impact. The economical impact is calculated by multiplying an economical ratio by a weight of economical impact. The environmental impact is calculated by summing up of multiplying each element of environmental ratio by weight of each element of environmental impact, respectively. The economical ratio consists of economic margin and return ratios and business impact. The environmental ratio includes annual volumes of CO{sub}2, NO{sub}x, and SO{sub}x emitted per annual cargo capacity. These economical and environmental ratios are determined by using technical data including cargo capacity, engine power, and building cost of a ship. The weights of economical and environmental impacts depend on public opinion. These weights are determined by using the Analytical Hierarchy Process (AHP) model on the basis on public opinion. Using the model, a feasibility study on a podded propulsion Liquefied Natural Gas (LNG) tanker is accomplished in Arun, Indonesia-Osaka, Japan route by comparing with a conventional one for 20 years operation. A short abstract (50 to 100 words) in a single paragraph should be included here.