Models provide knowledge on energy efficient vessels

​Fabian Tillig presents a model that facilitates the calculation of a ship's fuel consumption on a certain route in natural conditions, ie with regard to wind and waves. The model can be used to design energy efficient vessels, suitable for the conditions they will operate in.

The research conducted at the Department of Shipping and Marine Technology is committed to the UN sustainability goal Number 7 – Affordable and clean energy for all. This is done both through the development of the design and operation of vessels, and by sustainable energy production.

“It is about using existing technology in the best way, and develop methods – for example, by modeling which is the case with my project. But it can also be achieved by developing new technologies such as sails for large ships. We also work with renewable energy production, especially with wave energy”, says Fabian Tillig.

In January, Fabian Tillig and colleagues from the department will participate in the international conference Maritime Energy Management, MARENER 2017, held in Malmö at the World Maritime University. MARENER has announced the UN global sustainability goal number 7 as its theme: To ensure access to affordable, reliable sustainable and modern energy for all.

Fabian Tillig’s presentation is titled Ship energy systems modeling for energy efficient design and operation.
“We have developed a generic model for ship energy systems. That means we can calculate a ship's fuel consumption on a route in real conditions, ie with the wind and waves, and we just need to know the type of ship and the length/width/depth and displacement (the ship weight).”

The presentation shows how the model can be used for designing ships for the conditions they will operate in, and thus make them more energy efficient. The model can also be used to analyze whether the ship in service is running properly.

“It is therefore a tool for finding the best way to design and operate a vessel with the technologies we have. In the future we will also use the model to test new technologies such as sails”, says Fabian Tillig.

His colleague Shun Han Yang will also join the conference in January. She is researching the extraction of renewable marine energy, more specifically, wave energy which has great potential to contribute to the world's renewable energy supply. For the technology to be commercially viable there are still a few challenges, including ensuring long-term reliability and durability of mooring lines and power cables used in the conversion of wave energy system.

“Together we cover both the issues of energy saving in the shipbuilding industry, and efficient energy production”, says Fabian Tillig.


The International Conference on Maritime Energy Management (MARENER 2017), will be held from 24 to 25 January 2017 at the World Maritime University in Malmö, Sweden. MARENER 2017 will provide a forum for both researchers and practitioners to examine opportunities and challenges in the field of maritime energy with the aim of achieving an energy efficient and low carbon future for the maritime industry.

Published: Wed 07 Dec 2016. Modified: Thu 08 Dec 2016