Study of energy efficient navigation method for inland ship: A cruise ship case

According to the navigation characteristics of the inland ship, a multiple-constrained model of minimum fuel consumption is established. Some information collection sensors are amounted on this ship in order to obtain the research data. Through analysis and process of these data, the regression functions between main engine fuel consumption and shaft revolution speed and between ship speed to water and revolution speed are obtained. Take the typical navigation leg for example; the model is resolved using LINGO software. Next, the energy efficient methods are further studied in two aspects that is the optimization of the navigation time and the working number of the main engine. The research results indicate that ship´s fuel consumption can be efficiently reduced by extending the navigation time and reducing the working number of the main engine.