A novel method for joint optimization of the sailing route and speed considering multiple environmental factors for more energy efficient shipping

Abstract

Energy saving and emission reduction have attracted a great deal of attention in the maritime industry. The optimization of a ship's energy efficiency can reduce energy consumption and CO2 emissions effectively. However, most of the available studies only focus on either the sailing speed or route optimization, and the interaction between speed and route under the influence of multiple environmental factors was not accounted properly. In this paper, a novel joint optimization method of the sailing route and speed, which considers the interaction between route and speed as well as multiple environmental factors, is proposed to fully exploit the energy efficiency's potential. Moreover, a joint optimization model of the sailing route and speed, which is based on an energy consumption model that considers multiple environmental factors, is established. Next, a solution algorithm for the joint optimization model is investigated in order to achieve joint decision-making with regard to the sailing route and speed. Finally, a case study is conducted that demonstrates the effectiveness of the proposed method. The results show that the proposed method can achieve the optimal sailing route and speed under complex environmental conditions, as well as a reduction in fuel consumption and CO2 emissions of about 4%.

Joint energy consumption optimization method for wing-diesel engine-powered hybrid ships towards a more energy-efficient shipping

“…Then, the fuel consumption of the main diesel engine per unit of sailing distance of the ship can be achieved by Eq. (17).…”

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Collaborative Optimization of the Battery Capacity and Sailing Speed Considering Multiple Operation Factors for a Battery-Powered Ship

“…An interval number programming method was constructed to solve the nonlinear optimization problem [25]. Kai Wang et al proposed a joint optimization model of the sailing route and speed for a sea ship, which is based on an energy consumption model [26].…”

Bunker fuel, commodity prices and shipping market indices following the COVID-19 pandemic. A time-frequency analysis

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