Ship performance and efficiency Through-life energy efficiency solutions
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Old ships
Charter rates
New ships
2009-12
2013
2014
2015
Timeline
At Lloyd’s Register (LR), we have a unique set of capabilities in the area of energy efficiency. This means we can develop individual solutions appropriate to any stage of a vessel’s lifecycle. We understand that the drivers behind energy efficiency are not the same for everyone. This is why we don’t have a ‘one size fits all’ suite of products but a promise to deliver solutions designed with you in mind.
Working together for a safer world
A through-life process Ship performance and efficiency is a process, not an event. This process starts at the earliest stage of establishing fleet requirements and continues through the life of the ship. Our capability and solutions support you at each of the following four stages:
1 Techno-commercial evaluation
2 Concept design
3 Energy efficiency design optimisation
4 Energy efficiency operational optimisation
The ship performance and efficiency process, which starts at the earliest stage of establishing fleet requirements and continues through the life of the ship
1 Techno-commercial evaluation A strategic look at your current and future fleet requirements Your challenge
Our capability
Our solutions
Making the correct vessel and investment choices in the face of changing market conditions and advancing technology.
Our ability to use state-of-the art market models, financial databases and regulatory scenarios, and our technical insight, mean we are uniquely placed to determine how changing market conditions (trade volumes, fuel availability, price volatility and regulatory landscapes) might impact your future fleet strategy.
We work with you to validate the assumptions behind your fleet strategies, including adoption of new technologies, and develop performance specifications that will help ensure your assets remain competitive into the future.
Our solutions
Work we have done for clients Helping safeguard future investment decisions A client previously involved in tanker owning was looking to re-enter the market. They were faced with the decision to build new ships or buy second-hand tonnage in order to meet their operational and trade requirements. Our understanding of the regulatory and commercial issues that can affect route into market, as well as our knowledge of ‘state-of-the-art’ tanker
designs, helped the client make a decision that would help safeguard their investment into the future. Our discussions focused around a set of requirements to maximise profit versus cost throughout the intended life of the vessels, and the subsequent development of a high-level roadmap of options into the market. The support and knowledge we provided helped the client decide with confidence to build new tonnage.
“ Our understanding of the regulatory and commercial issues that can affect route into market helped the client make a decision that would help safeguard their investment into the future.”
2 Concept design Optimising your ship’s design to meet requirements Your challenge
Our capability
Our solutions
Ensuring operational flexibility while optimising performance over a range of operating conditions.
Our unique capability and 25 years of experience in computer modelling provide the best correlation possible between complex studies performed at full-scale and the real operational performance of ships. This is underpinned by our strength in supporting maintenance and propulsion systems’ optimisation.
Based on either pre-determined requirements or a performance specification, we deliver integrated hull and propulsion solutions which are optimised to meet the intended operational profile of your ship while maintaining flexibility against changing market conditions and helping ensure assest value into the future.
Our solutions
Work we have done for clients Assessing the latest sailpower technology Our innovation and experience is reflected in the technology projects we support. One of these is Windship Technology Ltd, a sail power concept being developed by a consortium of five key players in the shipping industry. We were asked by the consortium to independently assess the new concept, known as an Auxiliary Sail Propulsion System (ASPS), to validate its performance and find out its potential for fuel savings. The ASPS uses fixed wing sail technology, whereby two 35-metre high masts are installed on the deck of a vessel, each with three aerodynamic wings. The masts rotate automatically to exploit the power of the prevailing wind, allowing engine power to be reduced in order to achieve fuel savings.
We carried out computational fluid dynamics (CFD) analysis of the ASPS masts on a supramax bulk carrier in varying wind directions and speeds to determine the thrust they would generate at the optimum angle. These showed that ASPS has the potential to provide more than 50% of the required propulsive thrust a vessel needs, depending on conditions. In the right conditions this could save a typical bulk carrier 30% of its fuel costs on a voyage. Windship Technology Director, Simon Rogers, said: “We commissioned LR to evaluate the Windship design in a range of conditions so that we could have an independent appraisal of our design. The results produced were a few percent better than we had expected and has given Windship and our clients increased confidence in our
solution. Working with LR was a quick and efficient way of evaluating our design and produced cost-effective data that could then be used in our weather routing software.” LR is working closely with Windship Technology to provide concept through to full-scale support, covering classification, installation, integration and design approval, as well as performance verification and operational assurance at a time when the system is fitted for full-scale application. For more information, visit www.windshiptechnology.comt Images: Left: Simulated flow between the ASPS rigs graph Right: Impression of the Windship ASPS installed on a bulk carrier
3 Energy efficiency design optimisation (EEDO) Efficiency solutions throughout the advanced design and build stages Your challenge
Our capability
Our solutions
Achieving maximum performance benefit against specified operational profiles through evaluation of third-party designs and equipment options.
Our experience working with third parties such as yards and design-houses, together with our advanced modelling capabilities and specialist expertise, mean we are uniquely positioned to provide optimisation support and appraisal throughout the design and build stages.
From design and machinery appraisal to performance evaluation of energy saving technologies and independent verification and witnessing of model tests or sea trials, we can support the optimisation of your assets to help ensure return on your investment.
Our solutions
Work we have done for clients Creating fuel savings through hull-form modification A container ship owner implementing slow-steaming approached us for advice on how to make further fuel savings. We advised that the hull shape might not be optimised for slow-steaming. Using our expertise in computational fluid dynamic (CFD) modelling, we evaluated the scope for fuel savings through modification of the underwater hull form.
flow for the operational condition. This helped optimise its performance and design the new optimum bow shape. The work was carried out in two phases. In phase one we assessed the extent of feasible savings and the scope of modifications and in phase two we carried out the design modifications leading to the maximum savings identified in phase one. Savings up to three tonnes of fuel a day were achieved as a result.
First, using the ship’s model available in our Ship Emergency Response (SERS) database, we carried out CFD calculations based on the bare hull for two operational conditions.
The owner is planning to carry out the modification in the next drydocking.
Next, we analysed the bulbous bow by varying seven of the design parameters in an iterative process to improve the
Right: bulbous bow variations: original (blue), best (green), worst (red)
Images: Left: suggested bow modifications
“ Using our expertise in computational fluid dynamic (CFD) modelling, we can evaluate the scope for fuel savings through modification of the underwater hull form.”
4 Energy efficiency operational optimisation (EEOO) Bespoke solutions to optimise vessel performance and efficiency in service Your challenge
Our capability
Our solutions
Reducing operating costs and de-risking ‘compliance solutions’ in a changing market with changing regulatory requirements.
Our global expertise in fuel management and ship energy evaluation means we are uniquely positioned to respond to the fluid nature of shipping and meet your requirements. Our technical specialists have the expertise to validate your ship’s performance through computer modelling and onboard measurement.
Our solutions help you achieve fuel and efficiency savings, covering all operational areas, from bunker manifold to exhaust, and from propulsion to maintenance management. From identifying efficiency gaps and applying best practice to finding the right retrofit technology options for your cost model, we provide confidence that your assets will continue to perform in our demanding industry.
Our solutions
Work we have done for clients Applying fuel management optimisation A ship operator client had ventured into an innovative fuel management programme, selecting one ship as a test platform. By installing a diesel switch, water-in-fuel emulsion and an ultrasonic device, and by adding a stand-alone homogeniser to one of the fuel conditioning modules, they hoped to reduce exhaust emissions, visible smoke and fuel consumption, and improve the cleanliness of postcombustion spaces. The client wanted independent guidance on their plans. They initally asked LR to review them and provide recommendations, and then asked for our assistance in putting a sea trial schedule together and directing the fuel management programme on board. The programme ran from August 2012 to November 2013, with three
sea trial trips using various fuel system configurations. The programmes were able to be remotely set up with the crew and data was sent every week to LR for assessment. Using data collected from the engine management system and emissions monitors, we were able to compute the data and demonstrate the degree to which their objectives were met. In view of this, the client has now progressed to six ships on which they will include an exhaust gas treatment system to complete the full cycle from loading fuel to exhaust emissions. LR has been asked to oversee this programme too. We are now helping the client with a more continuous programme of analysis , monitoring, reporting and verification of their fleet’s fuel management programme. Image: The water-in-fuel emulsifier in situ
“ From identifying efficiency gaps and applying best practice to identifying the right retrofit technology options for your cost model, we provide the confidence that your assets will continue to perform in an ever more demanding industry.”
Your challenge, our solution Search the table for our full range of ship performance and efficiency solutions Your challenge
Lifecycle stage Technocommercial evaluation
What market factors and scenarios will impact my fleet composition and criteria?
Concept EEDO design
Review fleet strategies and develop performance specification x
Do I have the best propulsion and engine combination for my design?
x
x Can I improve above water efficiency?
Integrated hull design optimisation x
Machinery and propulsion matching
x
Propeller wake-field optimisation
x
Propeller-rudder hydrodynamic optimisation
x
x
Hull-form optimisation
x
x
x
x
Can I improve underwater efficiency?
Is there a low-cost, quick win to ensure the best operating efficiency? How can I reduce my maintenance costs and reduce the risk of downtime?
x
How can I demonstrate my environmental credentials?
Efficiency improvement assessment Aerodynamic optimisation Onboard ship energy efficiency evaluation
x
Company and fleet energy efficiency gap analysis
x
Ship energy management training
x
x
Trim optimisation
x
x
Maintenance management optimisation
x
Ship energy efficiency management plan review
x
ISO 50001 gap analysis and certification
How do I get value from energy management beyond just compliance?
x
x
x
x
How can we build a culture of understanding regarding ship energy efficiency?
How can I minimise technology risk and ensure return on investment?
EEOO
x
How do I tailor the hull design to suit my specific operating profile?
How can I improve fleet efficiency and implement ‘best practice’?
Our solution
x
x
x
Technology selection and risk management
x
x
x
Technology performance verification
x
Environmental performance verification services
To find out more about how we can help you please visit us at: www.lr.org/environment or contact us at marine-environment@lr.org
www.lr.org May 2014 Lloyd’s Register and variants of it are trading names of Lloyd’s Register Group Limited, its subsidiaries and affiliates. Copyright © Lloyd’s Register Group Limited. 2014. A member of the Lloyd’s Register group.