STUDIES CONFIRM DP RUDDER PROPELLER EFFICIENCIES

Independent studies have confirmed that Schottel’s dynamic rudder propeller SRP-D offers significant advantages for dynamic positioning operations in service vessels, the company has announced

The SRP-D was launched in 2022. In addition to the embedded electric main drive (LE-Drive) and a propeller shaft with an eight-degree tilt, the SRP-D features a number of improvements, including reduced propeller acceleration/deceleration times and a high-speed azimuth steering system with reinforced gear components, thus achieving double the rotational speed.

Efficiencies Assessed By Studies

A joint study with MARIN and Polish ship designer MMC investigated the effect of thruster response latencies on DP positioning. The study found that the SRP-D rudder propeller demonstrated much-improved position accuracy and enhanced operability of the vessel.

A separate study was conducted with DNV and Norwegian ship designer VARD in which the solution’s performance was simulated to assess the effect of the SRP-D on a service vessel’s operational performance and environmental impact. The study that the DP footprint can be significantly reduced, coupled with expected fuel savings of up to 30 percent depending on the operating point.

Michał Olko, Vice-President and Chief Designer, MMC Ship Design commented that “the results presented in MARIN’s dynamic DP simulations indicated a significant benefit as regards the operability of the vessel. We’re convinced that this fast responsive thruster will be the preferred choice for SOVs, allowing them to meet operational requirements in terms of DP accuracy and overall performance.”

Higher positioning accuracy

The dynamic properties of the SRP were investigated within a time domain level three analysis commissioned by classification society DNV. The simulation was performed on the numerical model of a real Service Operation Vessel (SOV) equipped with SCHOTTEL propulsion systems. Its positionholding capabilities were examined under extreme weather conditions: high winds, strong currents and effective wave heights of 2.5 metres and 3.2 metres. The results of the extensive simulations at DNV showed a significantly improved positioning accuracy while halving the DP footprint. This permits successful gangway landing operations even in rougher conditions, thus increasing the service life of the vessel throughout the year. Furthermore, every single landing is performed more efficiently, saving time and fuel.

Luca Pivano, Principal Specialist DP Simulations, DNV added “Our simulation results show that with faster thruster response the vessel’s station-keeping performance is greatly improved, resulting in smaller DP footprints compared to traditional thruster response. This benefit is even more obvious in harsh weather conditions.”

Increased propulsion efficiency

Thanks to the lower gearbox that has an additional eight degrees downward tilt, the interaction between propulsion unit and hull and the propeller flow interaction are reduced. As established in the simulations, these optimizations result in an increased thrust efficiency during DP. Depending on the thruster’s operational direction, simulation also revealed up to 50 percent less thrust loss and fewer forbidden zones.

Karl Randle, Principle Naval Architect, VARD: “The CFD results of the inclined gear box clearly show a significantly reduced thruster hull interaction or Coandă effect for zerospeed station-keeping. This is especially evident for inward flow directions and areas where the flow interacts with or flushes the skeg or other thrusters. The benefits of reduced thrust deduction could be significant for designers and owners in many applications when such considerations are included in detailed analysis procedures.”

Savings in fuel consumption

Furthermore, the implemented optimisations yield additional savings in fuel consumption. Thanks to the faster response time of the propulsion, the vessel can be quickly held in position with only minor corrections being necessary. This prevents major corrections in position having to be made which would require more power. Depending on the operating point and environmental conditions, this can save up to 30 percent in fuel during DP operation compared to standard rudder propellers.

8 The results of the extensive simulations show a significantly improved positioning accuracy while halving the DP footprint

8 The faster response time of the SRP-D prevents major corrections which would require more power

Hosted by:

Growing Sustainable Supply Chains: Short Sea Shipping & Intermodal Networks Conference Programme

Royal Liver Building, Liverpool, UK

Sponsor: Supporters:

A neutral pan-European network dedicated to the promotion of short sea and feeder shipping and the intermodal transport networks that support the sector.

Chairman: Nick Lambert, Co-Founder & Director, NLA International Ltd visit: coastlink.co.uk contact: +44 1329 825335 email: info@coastlink.co.uk

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DAY ONE – Wednesday 3th May 2023

08:30 Coffee & Registration

09:00 Chairman’s Welcome

Nick Lambert, Co-Founder and Director, NLA International Ltd

SESSION 1: MARKET SECTOR OVERVIEW - THE NEW NORMAL IN AN ADAPTING MARKET

Considering Trends, Market Forces, and emerging Opportunities for Short Sea Feeder Services and Logistics

09:10 Port’s Welcome Address

Claudio Veritiero, CEO, Peel Ports Group

09:25 Gold Sponsor’s Address

09:35 Keynote Presentation

Roger Megann, Managing Director, WEC Lines UK Ltd

09:50 Network Development & Appraisal in the Short Sea Sector

Mike Garratt, Chairman, MDS Transmodal

Considers the trend towards longer maritime crossings and the use of non-accompanied modes in short sea shipping to Great Britain and the case for incorporating the public interest cost benefits of such switching in the appraisal of road, rail and port infrastructure development.

10:05 Building a case for a greener transport alternative for smaller cargo volumes –

Short Sea Shipping and intermodal cargo flow

Michael Rosenkilde Lind, Senior Commercial Manager, Port of Aalborg

A presentation from the Port of Aalborg with the research and findings of the process of trying to establish a new Ro/Ro route with only smaller local stakeholders along with major cargo flows on rail in transit.

10:20 Q&A

10:40 Coffee & Networking

11:15 PANEL DISCUSSION: Post-Brexit & Post-Pandemic: Are we where we need to be?

Panel Moderator: Richard Ballantyne OBE, Chief Executive, British Ports Association

Panellists include:

Doug Bannister, CEO, Port of Dover

Howard, Knott, IEA Logistics Consultant, Irish Exporters Association

Andima Ormaetxe Bengoa, Director - Operations, Commercial, Logistics and Strategy, Port of Bilbao Authority

Sean Potter, Commercial Director, DFDS A/S

12:30 - 14:00 Lunch & Networking

SESSION 2: HOW TO PROMOTE GROWTH AND DELIVER RESILIENT END TO END SUPPLY CHAINS

A look at the changing landscape in end-to-end intermodal networks & the just in time supply chain.

14:00 Opening Address

Michelle Gardner, Deputy Director – Policy, Logistics UK

Logistics UK will highlight the opportunities in the supply chain for innovation and modal shift to benefit the environment and consumers as well as operators throughout the supply chain.

14:15 What mode of transport uses Ports?

Stephen Carr, Group Commercial Director, Peel Ports Group

We explore why the true answer to that question defines why both industry and consumers need to think differently about the role and the functions of modern ports.

14:30 Practical examples of building resilience into a supply chain using intermodal services

Geoff Lippitt, Chief Commercial Officer, PD Ports

How intermodal, short sea shipping, RoRo, LoLo and last mile delivery road haulage can interlink to provide resilience and enhance capacity for ports and operators

14:45 Port of Antwerp-Bruges – providing total intermodal connectivity solutions

Justin Atkin, UK & Ireland Representative, Port of Antwerp-Bruges

With excellent connections to the hinterland by estuary and inland barge, rail, road, and pipeline, discover how the Port of Antwerp-Bruges provides totally integrated transportation solutions, helping shippers ‘green’ their supply chains.

15:00 Q&A

15:20 Coffee & Networking

15:50 PANEL DISCUSSION: Freeports: Driving change for coastal shipping and the supply chain?

A discussion on the impacts and benefits of Freeports. How will supply chains adjust? Xx

Panel Moderator: Richard Ballantyne OBE, Chief Executive, British Ports Association

Panellists include:

Giles Jones, Project Manager, Liverpool City Region Freeport

Ben Harraway, General Manager, Portico Shipping

Nolan Gray, Freeport Director, Tees Valley Combined Authority

Arne Mielken, Managing Director, Customs Manager Ltd

17:15 Conference Day 1 Wrap-Up – Conference Chairman

17:30 Conference Close

17:30 Evening Drinks Reception at the Royal Liver Building

18:45 Conference Dinner at the Royal Liver Building

DAY TWO – Thursday 4th May 2023

08:45 Arrival: Coffee

SESSION 3: SUSTAINABILITY & THE ENERGY TRANSITION – A ROUTE TO SHIPPING FREIGHT SUSTAINABLY

The journey and challenges for ports, shipping & logistics in achieving net zero

09:10 Chairman’s Opening & Summary of Day 1

09:15 Keynote Presentation

David Browne, General Manager, MAERSK

09:30 A Green Port’s Journey to Net Zero

Tanya Ferry, Green Port Consultant, Royal Haskoning DHV

Learn how Royal HaskoningDHV is helping the world’s ports embrace digital innovation, decarbonisation, and new-found resilience. And discover the challenges, savings, and operational benefits to be found on the journey to Net Zero.

09:45 Port of Amsterdam – At the forefront of the transition

Mark Hoolwerf, Deputy Director, Port of Amsterdam International

The port of Amsterdam is a global energy hub, meaning that it stands for a significant decarbonisation challenge. This presentation will focus on how the Port of Amsterdam approaches the energy transition, with a focus on its overall strategy and recent initiatives and developments. This will include subjects such as the role of hydrogen, clean shipping, and the collaboration with different parts of the value chain.

10:00 Lessons learned with shore power

Jacob Bjarkam, Business Development Manager, PowerCon

Shore power is expected to be scaled tremendously. PowerCon will provide key insights and lessons learned on how to best to implement this technology successfully, by sharing hands-on experience from past projects plus the latest news and innovation.

10:15 Q&A

10:35 Coffee & Networking

11:10 PANEL DISCUSSION – Driving Efficiency through Data & Port Collaboration

Improving supply chain efficiency through data, collaboration, and digitalisation

Panel Moderator: Tim Morris, Head of Corporate Communications, Associated British Ports

Panellists include:

Richard Willis, Technical Director - Port Operations & Technology, Royal HaskoningDHV

Eleni Bougioukou, Innovation Manager for Energy & Sustainability, Port of Tyne

Grant Hunter, Director - Standards, Innovation and Research, BIMCO

Ross McKissock, Director of Unitised, Port of Tilbury London Limited

12:20 Conference Wrap up by Conference Chairman

12:30 Lunch & Networking

13:50 Working Group Session ‘What are the blockers governments need to remove to enable the industry to accelerate to Net Zero’

Facilitated by the Chairman Nick Lambert, & Stephen Carr, Group Commercial Director, Peel Ports

15:10 Coffee & Networking

15:30 Technical Visit at Port of Liverpool Hosted by Peel Ports Group, delegates can enjoy a tour of the Port of Liverpool encompassing Liverpool 2.

Conference Fee

Premium Package

£625GBP/ €750euro

Cost per delegate

Standard Package

£590GBP/ €710euro

Cost per delegate

Fee Includes

• Conference attendance including lunch & refreshments

• Electronic documentation

• Technical Visit 4 May 2023

• Conference Dinner 3 May 2023 (Premium Package)

• Presentation download (Premium Package)

Booking Online coastlink.co.uk/buy or complete and fax the booking form below to +44 1329 550192. On receipt of your registration, you will be sent confirmation of your delegate place