MASSIMO FIGARI

The harvesting of wind energy and its transformation into a thrust force for the ship propulsion is the basics of Wind-Assisted Ship Propulsion (WASP). The concept has been gaining in popularity in the last years due to the expected benefits in emission reduction. To exploit the benefits, a proper integration between the conventional diesel...

Energy efficiency is a crucial issue in ship management and operation. A proper fuel saving oriented routing strategy can be helpful in reducing running costs and pollutant emissions, as well as increasing the voyage safety and comfort. This paper presents a methodology for ship voyage planning based on 3D dynamic programming. It aims to select...

Code for the preliminary sizing of a ship propulsion plant based on a diesel engine, a controllable pitch propeller, and one or more Flettner rotors. The mathematical model describing the behaviour of the rotor in terms of propulsive thrust and power is presented in the publications. The rotor model has been integrated into an existing diesel...

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The harvesting of wind energy and its transformation into a thrust force for the ship propulsion is gaining popularity due to the expected benefit in emission reduction. To exploit the benefit, a proper integration between the conventional diesel engine-screw propeller propulsion plant and the wind assisted plant is mandatory. This paper aims...

The harvesting of wind energy and its transformation into a thrust force for the ship propulsion is gaining popularity due to the expected benefit in emission reduction. To exploit the benefit, a proper integration between the conventional diesel engine-screw propeller propulsion plant and the wind assisted plant is mandatory. This paper aims...

Emissions restrictions are growing worldwide due to climate change concern. In the maritime sector different fuels are under scrutiny to identify the best option toward a carbon free transport. Methanol, the simplest alcohol, is one of the most discussed alternative fuels. This work aims at investigating the use of this chemical as fuel on...

The harvesting of wind energy and its transformation into a thrust force for ship propulsion are gaining in popularity due to the expected benefit in fuel consumption and emission reductions. To exploit these benefits, a proper matching between the conventional diesel engine-screw propeller propulsion plant and the wind-assisted plant is key....

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The propulsion system of modern conventional submarines features multiple energy conversion and storage devices and users, which operate closely interconnected. The basic design and sizing of the components commonly rely on steady-state calculations, neglecting the interactions between the propulsion system components. An adequately tailored...

Maritime Autonomous Surface Ships (MASS) have great potential, representing a significant advancement in maritime technology with promises of enhanced efficiency, safety, and operational flexibility. The primary technical objective is to improve life safety by reducing human error. This paper contributes by developing a simplified...

The scientific analysis presented in this paper aims at studying some maritime technical solutions for the electric energy generation and delivery to ships moored in port by means of LNG fueled generators installed onboard a floating unit. Two different scenarios regarding the LNG supply chain are supposed and some options for producing cleaner...

In the present work, a simulation model, integrating a path planning algorithm in the presence of obstacles with a track keeping controller, is developed. The path planning is based on a modified version of the Rapidly-exploring Random Tree (RRT*) algorithm. The track keeping is based on the Line-of-Sight (LOS) waypoints navigation for...

In the last years, global warming and climate change concerns led the United Nations - and thus IMO about shipping - to set ever-higher goals in order to reduce polluting emissions. Many researchers focused their efforts on ship operational efficiency by proposing different approaches to weather routing problems. Following this research...

Fishing is an energy-intensive economic activity. Research in several fields is conducted to improve the energy and environmental profile of fishing vessels. As regards the technical measures, the assessment of benefits is often hampered by boundary conditions that are difficult to quantify and side effects that are difficult to unravel. This...

The virtual prototyping of the ship has been used for many years, starting at the beginning of the century. The main idea was to implement a Virtual representation of the ship and her systems able to behave reliably through simulation. A 3D virtual reality environment was the background for this virtual prototype which behaved realistically to...