고효율 컨테이너 크레인의 개념 모델 및 적용효과 분석

Abstract

Scaling up in the container trade resulted in container vessels with a maximum capacity of 12,000 to 15,000 TEU. All over the world, terminal operators are very much interested in the introduction of container crane with high productivity. In order to improve the productivity, we present a HECC(High Efficiency Container Crane) with high productivity to respond a very large container vessel. In this study the conceptual model of the HECC using separated trolley is used to reduce the cycle time. It is focused on the move of containers between sea-side on a container vessel and land-side on an apron during the loading and unloading operation. We analyze the mechanical productivity, net productivity, and gross productivity of the HECC to handle a large quantity of containers in very large container vessel. The results of analysis show that under simplifying assumptions the developed concept of HECC satisfies the productivity requirements. In terms of the service level and the economic feasibility, the performance of the HECC is better and requires considerable lower costs.