9. September 2021 | Coach Solutions

Prediction of ships’ speed-power relationship at speed intervals below the design speed

Setting a correct performance benchmark is crucial for monitoring vessel hull performance efficiently. With more ships slow steaming in order to meet EEXI requirements, accurate benchmarking can become an issue because sea trials and model tests are typically performed in the design speed range, thus the benchmark in the slow steaming range has to be established using other methods.

Frederik Hammer Berthelsen, who worked here at COACH Solutions during his Naval Architecture studies, has looked at this exact problem in his Master Thesis from Technical University of Denmark – DTU, working on a robust method for extrapolating speed/power curves from a known design speed range to an unknown slow steaming range.

Abstract from Frederik’s article: This study investigates the speed-power relationship of ships, and is based on a combined econometric and naval architectural data-driven model fed with operational data from more than 50,000 Noon Reports obtained from 88 tankers. It is shown that the speed-power exponent is significantly lower than 3 at speed intervals below the design speed. This finding, including the study itself, affects the environmental discussions related to slow steaming, since it implies that slow steaming will not be as good as often stated. As such, the study imparts attention to speed optimisation, rather than reduction, in the political and environmental debate focused on the reduction of carbon emissions from shipping.

You can read the findings HERE in the article, which has just been published.

Contact us at sales@coachsolutions.com if you want to learn more about vessel performance monitoring or if you need help with improving your benchmarks.


21. December 2021 | Coach Solutions

What is CII and how can you stay compliant?

The IMO established its greenhouse gas (GHG) reduction strategy in 2018 to reduce emissions from the shipping industry. One of the main goals is to reduce carbon intensity with 40% by 2030 compared to the 2008 level and with 70% by 2050. To achieve this goal a number of energy efficiency and emission reduction regulators […]

1. December 2021 | Coach Solutions

COACH Solutions are opening offices in Singapore and Athens

We are very pleased to announce our Singapore and Athens offices are open for business! Singapore and Greece are both playing an important role in the shipping industry and we are truly excited to be opening offices in both locations. The new offices will help us get even closer to our valued clients and is […]

27. October 2021 | Coach Solutions

Meet a COACH – Christian Raae Holm

Here at COACH Solutions, we are very proud of our most valuable and greatest asset – our employees. Without them – no COACH Solutions. In our series of interviews of our employees we have this time been talking to Christian Raae Holm, who is Head of Performance. He has been with COACH since the early […]

19. October 2021 | Coach Solutions

Call to Action for Shipping Decarbonization

  COACH Solutions is a proud signatory to the Call to Action for Shipping Decarbonization: “Getting to Zero Coalition” with the hope that governments will deliver the policies needed to supercharge the transition, and make zero emission shipping the default choice by 2030. By joining the The Getting to Zero Coalition we join more than 170 […]

12. October 2021 | Coach Solutions

Why should the operator be in charge of Voyage Optimization?

In this “Position Article” Christian Råe Holm, Head of Performance Management, takes a look at Voyage Optimization. What are the aspects of Voyage Optimization? Why should it be the operator sitting in the driver seat when it comes to Voyage Optimization?   When approaching new potential users of the COACH Voyage Optimization service, we meet […]

18. November 2020 | Coach Solutions

Why is weather routing so important?

The aim of weather routing is to achieve optimum speed in order to perform the voyage as energy efficient as possible reducing bunker consumption while providing the safety of ship, crew and cargo. The IMO has publicly states that utilizing weather routing services reduces fuel consumption by up to 3% and even further with larger […]

1. July 2020 | Coach Solutions

Kongsberg Digital acquires COACH Solutions

Kongsberg Digital has acquired COACH Solutions, a leading supplier of software solutions for vessel performance and monitoring. COACH’s vessel performance monitoring system was developed by Danish shipping company Clipper Group. In 2016 COACH was established as an independent company – COACH Solutions ApS – which has grown rapidly. Its software currently has over 900 licenses […]

18. January 2021 | Coach Solutions

Monitor Cylinder lube oil consumption

Cylinder lube oil consumption is one of the most overlooked consumers in fleet performance management. With saving potentials anywhere between 5-10% and often higher there is great value in monitoring the consumption and taking action. Over-lubrication does not only directly impact your profit and loss it also has a negative technical impact on your equipment. […]

12. September 2019 | Coach Solutions

COACH Solutions releases IMO 2020 module

COACH Solutions releases IMO 2020 module COACH Solutions have, in close cooperation with our dedicated clients, developed a simple overview to help operators manage the increasing demands posed by the 2020 global Sulphur Cap. In short, it gives the operator a constantly updated overview of which fuel types are on board the vessel, in which […]

23. September 2019 | Coach Solutions

COACH Solutions launch updated web portal

COACH Solutions has launched an updated web portal to serve existing and new clients. The updated web portal helps the clients continue being updated on the performance and current status of their vessels. The site offers an even more user-friendly navigation platform as well as increased responsiveness. In addition, the back-end for the market leading […]

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