船舶へのLCAの適用に関する調査研究

概要

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In order to analyze the environmental effects of products, a life cycle assessment (LCA) method has been proposed and widely used. However, LCA of ships has not been performed probably because of a large number of components and complicated operation of ships. In this study, some fundamental problems in conducting LCA of ships are investigated. First, all of the constituent processes of the shipbuilding, operating and dismantling of ships are investigated in detail and inventory, quantitative data of inputs and outputs through each process, is estimated. Based on this inventory data, a life cycle inventory of a model ship, which is an oil tanker of 85,000DWT, is then analyzed, where quantity of carbon dioxide emission is calculated. The total emission of carbon dioxide is obtained as 1.4 × 10 (+6) ton, consisting of 2.0 × 10 (+4) ton from shipbuilding phase (1.5%), 1.3 × 10 (+6) ton, from operating phase and 3.6 × 10 (+2) ton from dismantling phase. This method is also applied to fishing boats (an aluminum and FRP ship), a container and a cargo ship. Finally, a piece of software for LCA of ships is also prepared.
独立行政法人海上技術安全研究所の論文
2002-12-26