Energy efficiency management is becoming increasingly important in the trend towards decarbonisation and intelligentisation of future ships. Establishing a verified energy efficiency model is essential in realising reliable assessment of various energy efficiency strategies. Based on a 53,000-tonne bulk carrier, modelling and verification of a ship’s energy efficiency with consideration of multiple factors is carried out. First, the existing ship’s energy efficiency regulation and its evaluation methods are introduced. Second, the onboard data collection system is introduced with the features of the measured data detailed. A ship energy efficiency model is developed from four main aspects, namely ship energy efficiency operational indicator, ship fuel consumption, ship main engine power, and ship resistance characteristics. Based on the Monte Carlo simulation method and utilising Matlab/Simulink, the energy efficiency model for the selected ship is simulated and measured fuel consumption data is used to verify the model. Finally, the simulation results are presented and discussed. The research results show that the devised model provides good enough accuracy to simulate ship energy efficiency with consideration to cargo loading, ship speed and the random impact of multiple natural environmental parameters. This study not only helps the ship manager assess the projected energy efficiency, but can also provide decision support for the optimisation of ship energy efficiency.

中文翻译：

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一种考虑随机环境参数的新型船舶能效模型

在未来船舶的脱碳和智能化趋势中，能效管理变得越来越重要。建立经过验证的能效模型对于实现对各种能效策略的可靠评估至关重要。以一艘53000吨散货船为基础，对船舶能效进行多因素建模验证。首先，介绍了现有船舶的能效规定及其评价方法。其次，介绍了车载数据采集系统，详细介绍了测量数据的特点。从船舶能效运行指标、船舶油耗、船舶主机功率、船舶阻力特性四个主要方面建立船舶能效模型。基于蒙特卡罗仿真方法，利用Matlab/Simulink，对所选船舶的能效模型进行仿真，并利用实测油耗数据对模型进行验证。最后，给出并讨论了仿真结果。研究结果表明，所设计的模型在考虑货物装载、船速和多种自然环境参数的随机影响的情况下，提供了足够好的模拟船舶能效的精度。该研究不仅可以帮助船舶管理者评估预计的能效，还可以为船舶能效的优化提供决策支持。模拟结果被提出和讨论。研究结果表明，所设计的模型在考虑货物装载、船速和多种自然环境参数的随机影响的情况下，提供了足够好的模拟船舶能效的精度。该研究不仅可以帮助船舶管理者评估预计的能效，还可以为船舶能效的优化提供决策支持。模拟结果被提出和讨论。研究结果表明，所设计的模型在考虑货物装载、船速和多种自然环境参数的随机影响的情况下，提供了足够好的模拟船舶能效的精度。该研究不仅可以帮助船舶管理者评估预计的能效，还可以为船舶能效的优化提供决策支持。