Sustainable mobility is one of the most challenging issues for passenger transport inside environmental protected areas and ecologically fragile environments. To reduce the pollutant emissions, the adoption of electric or hybrid-electric solutions for crafts propulsion is a suitable option for green navigation. However, the operation in restricted basin leads also to specific critical issues for the vessel sailing, as dealing with shallow or restricted waters and transit under low air-gap bridges. The combination of these constraints with the adoption of a hybrid-electric propulsion system increases the design difficulties also for a small craft, requiring the use of advanced simulation models to assess the vessel performances. This work presents a simulation model for a small passenger craft that will operate in the Grado Lagoon. The model combines the hydrodynamic issues of manoeuvring and propulsion in restricted water with the simulation of the electric loads and capacity of the energy storage system installed onboard. The simulations performed with the developed simulation system are in accordance with data measured during trials on a prototype of the vessel. The developed model is a powerful tool for designers in order to rapidly assess the green capabilities of new projects since the early design stages.

中文翻译：

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受限水域中混合动力电动艇的仿真模型

可持续交通运输是环境保护区内和生态脆弱环境内的旅客运输最具挑战性的问题之一。为了减少污染物排放，采用绿色或电动解决方案推动手工艺品推进是绿色航行的合适选择。但是，在受限流域中的操作还导致了船舶航行的特定关键问题，因为要处理浅水或受限水域以及在低气隙桥下运输。这些限制因素与采用混合动力推进系统的结合也增加了小型船舶的设计难度，因此需要使用高级仿真模型来评估船舶性能。这项工作为将在Grado泻湖中运行的小型客船提供了一个仿真模型。该模型将受限水中机动和推进的水动力问题与船上安装的储能系统的电负载和容量的仿真相结合。使用开发的仿真系统执行的仿真是根据在船只原型上进行试验期间测得的数据进行的。从设计初期开始，开发的模型就对设计师而言是一个强大的工具，可以快速评估新项目的绿色能力。