Abstract
According to the International Maritime Organization's regulations, there are factors that affect the energy efficiency of ship, cargo capacity and voyage distance. This document analyzes the information gathered from the detailed trials of the Energy Efficiency Operational Indicator of Taiwan’s bulk carrier and uses it to investigate the influence of various characteristics of voyage on the indicator value. The course of bulk carriers is mostly irregular because of chart; it is often difficult to estimate its navigation route in advance. Due to the cargo loading port or others, the course changes temporarily. Therefore, navigation distance is one of the main factors that influence EEOI value of bulk carrier. Other secondary factors are different to some extent, depending on the size of the ship. For Capesize bulk carrier, cargo loading capacity may be influenced by season, but for Panamax size and Handysize bulk carrier, it could be due to oil consumption. Therefore, to use the source (existing bulk carriers) effectively and to meet ships’ EEOI standard or the mutual recognition value, the optimum planning for navigation has to be reduced for it to be unexpectedly good. Key words: Energy efficiency operational indicator, bulk carrier, Grey relation.
Highlights
Increased CO2 content in the atmosphere leads to serious greenhouse effect, such as warming, melting glaciers, rising sea levels
When other greenhouse gases are absorbed by the original glacier, methane is released, which can form an uncontrollable positive feedback effect that will result in the entire human race drowning disaster
Ship energy efficiency operational index is reduced by reducing the fuel consumption of ships per nautical mile, improving ship load or using low CO2 emission factor of fuel
Summary
Increased CO2 content in the atmosphere leads to serious greenhouse effect, such as warming, melting glaciers, rising sea levels. In order to promote energy efficiency of ships and to reduce their greenhouse gas emissions, International EEOI is meant to enable operators to measure the energy efficiency of existing ships.
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