DELIVERABLES
Public (PU)
Sensitive (SEN)
In this deliverable the database serving as the backbone of the decision support system developed within RETROFIT55 is documented. It consists of:
- the ship model describing the vessel and its components in a way usable by the web-based catalogue, and,
- parameter tables describing the input and output parameters of the methods developed in the other work packages to describe the properties of the vessel and its (retrofitted) systems.
Multiple approaches to numerically describe the system “ship” and its components have been developed. These numerical descriptions are a fundamental requirement to evaluate and optimize for actual operating conditions and minimize the fuel consumption.
While it is perfectly feasible to set up numerical simulations evaluating the individual components, usually their usage in optimization, particularly of a global system comprising multiple components, is significantly compromised by the computational effort – and time – required to run them.
As one approach to facilitate global optimization the concept of surrogate models (“Computational Methods”) has been introduced. These surrogate models (and some other computational methods) allow fast and sufficiently accurate evaluation of components and global systems for proper
optimization.
Another approach presented to assess a ship’s characteristics and possible modifications is to train an artificial intelligence (AI) or machine learning (ML) based system on actual operational data of a particular vessel. This approach already implicitly includes extraneous effects like the weather
conditions on typical routes.
Finally, efficient ways to efficiently generate the input data for surrogate model by multi-fidelity simulations and design space reduction are presented.
Application examples both for the ML-based approach as well as for surrogate data generation are shown.
The Advanced Wing Systems (AWS) collapsible wing sail system is based on experience in soft wing sail development and testing over many years. To date the AWS wing sail technology has been used on craft from 2 to 22 m. It has been used in competitive sailing, including the 36 America’s Cup, and a 7,500 nautical mile ocean voyage. The technology allows aerodynamically efficient wing sails with variable wing geometry to be produced using existing materials and construction methods.
The innovation applied here is to make the wing sail system completely collapsible such that a large wing sail can be stowed to a small deck footprint. This allows larger wing sails to be deployed while having minimal impact on docking and loading operations. Further, the AWS wing sails can be
designed to collapse into a housing that is a suitable size and weight for transport as container cargo. This coupled with the ability to make the wing system completely self-contained simplifies production and optimizes maintenance operations.
A deck mounting frame is the only part customized to the vessel. With appropriate design, the deck mounting frame can be fitted to the vessel without the need for dry docking and welding. The AWS wing sail technology allows large cross section mast sections to be used with little or no
aerodynamic penalty. The resulting wing sections can produce very high lift and excellent lift-to-drag characteristics.
This document describes the major components of the wing sail. The document has been produced in parallel with the development of a detailed CAD model of a 1:7.5 scale model of a 100m wing sail test module. The scale model will be constructed ahead of the test module to allow operation to be
explored. The scale model will be fully functional, allowing control systems to be developed and tested ahead of the test module build.
The document also describes the 300 m module. This module is discussed as it is the proposed system for a Kamsarmax bulk cargo carrier and will be used as an example for numerical modelling. There is a strong dependency between the wing sail geometry and the design of the sub systems.
To allow this to be better explored, an Excel model which predicts wing section geometries for different mast and sail size configurations has been developed. The shape model is described in this document.
This document, combined with the scale CAD model and the shape model provide information to
support the detailed design process and also as a basis for Class Approval in Principle.
The Advanced Wing Systems (AWS) collapsible wing sail system is based on experience in soft wing sail development and testing over many years. To date the AWS wing sail technology has been used on crafts from 2 to 22 m. It has been used in competitive sailing, including the 36 America’s
Cup, and a 7,500 nautical mile ocean voyage. The technology allows aerodynamically efficient wing sails with variable wing geometry to be produced using existing materials and construction methods.
The innovation applied here is to make the wing sail system completely collapsible, such that a large wing sail can be stowed to a small deck footprint. This allows larger wing sails to be deployed while having minimal impact on docking and loading operations. Further, the AWS wing sails can be
designed to collapse into a housing that is a suitable size and weight for transport as container cargo. This coupled with the ability to make the wing system completely self-contained simplifies production and optimizes maintenance operations. A deck mounting frame is the only part customized to the
vessel. With appropriate design, the deck mounting frame can be fitted to the vessel without the need for dry docking and welding.
The AWS wing sail technology allows large cross section mast sections to be used with little or no aerodynamic penalty. The resulting wing sections can produce very high lift and excellent lift-to-drag characteristics.
This document describes the results and leanings from the development of a detailed CAD model of a 1:7.5 scale model of a 100m wing sail module. The scale model was constructed to allow operation of the full-scale system to be explored and also to support dissemination activities for the project.
The model was successfully displayed at the Retrofit55 booth at Posidonia in Athens from 3 to 7 June 2024. The scale model is fully functional, allowing control systems to be developed and tested ahead of the test module build.
There is a strong dependency between the wing sail geometry and the design of the subsystems. To allow this to be better explored, an Excel model which predicts wing section geometries for different mast and sail size configurations was developed. The shape is model is confirmed in the operation of the scale model. Further, operational aspects of the control system were explored by the model’s control systems, allowing the order of action to be validated and constraints explored.
The aim of D9.1 – Project Management Guidance Handbook is to support the RETROFIT55 consortium in the day-by-day execution of project activities, to introduce the technical and financial monitoring tools, to define templates to be used within the project, to specify the procedures for the preparation and review of the deliverables and the authorization process for the publications as well as some aspects concerning the communication and dissemination.
This deliverable summarizes the main features of the project website private area. In Section 1 the objectives of the private area are outlined, whereas in Section 2 the main features of the private area are summarized with the help of a few screenshots.
