Speed Optimization for Container Ship Fleet Deployment Considering Fuel Consumption

Abstract

In recent years, low energy consumption has become the common choice of economic development in the world. In order to control energy consumption, shipping line speed optimization has become strategically important. to reduce fuel consumption, this study optimizes the container ship fleet deployment problem by adopting the strategy of adjusting each leg of each route’s sailing speed. To calculate fuel consumption more accurately, both sailing speed and the ship's payload are considered. A multi-objective mixed integer nonlinear programming model is established to optimize the allocation of liner routes with multiple ship types on multiple routes. A linear outer-approximation algorithm and an improved piecewise linear approximation algorithm are used for linearization. If segments of an interval increase, the results will be more accurate but will take more time to compute. As fuel prices increase, to make trade-offs among economic and environmental considerations, the shipping company is adopting the “adding ship and slow down its speed” strategy, which verifies the validity and applicability of the established model.

Application of Regression Analysis Using Broad Learning System for Time-Series Forecast of Ship Fuel Consumption

“…Results of four groups of cases corresponding to the two case ships are shown in Figure 11. It can be seen from observation that the optimal parameters (p, q) corresponding to Figure 11a-d are (1,3), (2,5), (3,4), and (2, 1). For the ARIMAX model, 𝑑 was set to the default value following the stability t The influence of 𝑝 and 𝑞 on forecast accuracy is discussed later in the section [12].…”

“…In a regression analysis of ship fuel consumption, Wang et al considered the convexity, non-negativity, and univariate properties of the fuel speed function, and proposed an exact outer-approximation algorithm to address the speed optimization problem by obtaining an ε-optimal solution [4]. Gao et al considered the influence of ship speed and ship payload on fuel consumption, and then built a mixed integer nonlinear rule for container transshipment [5]. An increasing number of factors related to fuel consumption have been collected.…”

Efficiency of Ship Operation in Transportation of Oversized and Heavy Cargo by Optimizing the Speed Mode Considering the Impact of Weather Conditions

“…Determination of the vessels optimal speed working on carriages of cargoes, freight transactions (Onyshchenko and Koskina, 2015). Ship speed optimization (Krata et al, 2019), considering ocean currents and speed optimization for container ship fleet deployment considering fuel consumption studied in (Yang et al, 2020;Gao and Hu, 2021). The investigation on how time in port affects efficient ship operation in terms of operating costs (Moon et al, 2014), CO2 emissions and externalities.…”

Determining the best ship loading strategy during military deployments

“…Finally, an ancillary effect of light-loaded ships, although not explicitly studied in this paper, may be that less fuel is consumed and thereby fewer emissions produced. Previous research suggests that a ship's fuel consumption is directly related to sailing speed and payload (Gao and Hu, 2021;Andersson et al, 2015;Psaraftis and Kontovas, 2014). Reductions in ship speed would be counter to the MSLP objective of faster cargo delivery; however, reduced payloads are a direct result of light loading ships during a military deployment.…”