Abstract

International Maritime Organization (IMO) proposed the Ship Energy Efficiency Operational Indicator (EEOI) to evaluate the energy efficiency of ships in service. During the implementation of the EEOI, the effective monitoring and optimization management of ship energy efficiency is very important. In this paper, the ship energy efficiency monitoring and control system considering the environmental factors was designed. The system can calculate the EEOI of ship and have real-time displays to monitor current energy efficiency level of the ship by collecting environmental factors and engine fuel consumption data. In addition, the system can automatically output corresponding control signal to make the propulsion system run at the optimum energy efficiency status by running the energy efficiency optimization control model with the consideration of the environmental factors. The designed system can achieve the ship energy efficiency monitoring and optimum control of propulsion system under different environmental factors, thus making the ship run at the optimum energy efficiency level, thereby enhancing the ship energy efficiency and reducing emissions.

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