Thursday, June 1, 2017

New Container Vessel and Cargo Ship Designs and Green Corridor Details Revealed

Environmental Ocean Freight Matters Top Agenda at Shipping Trade Fair
Shipping News Feature
NORWAY – WORLDWIDE – The Nor-Shipping trade fair in Oslo today has given vessel classification and shipping expert advisory group DNV GL the opportunity to release news of the company's latest, mostly environmentally linked, projects and, as is the current trend, everything is about advancing the cause of leaner, greener ocean transport. The exhibition this week is right on the Norwegian headquartered group's doorstep and it has been working with partners from around the globe on several exciting and innovative schemes affecting container ships, general cargo vessels and impacting on everything from emissions to fuel consumption.

Firstly a host of companies, ABB, OMT, GTT, Caterpillar’s Solar Turbines, CMA CGM, its subsidiary CMA Ships together with DNV GL presented the results of phase II of the PERFECt joint industry project (JIP). Phase II of the project looked to validate the phase I results and develop the concept to a ‘ready to order’ stage. The PERFECt JIP examined the potential of developing an electric-driven 20,000 TEU ultra large container vessel (ULCV) with an LNG-fuelled combined cycle gas and steam turbine (COGES) electric power plant. The goals for the project were to utilise LNG as a primary fuel for an ultra-low emissions profile, in a design with at least the same carrying capacity and efficiency as existing ULCVs.

The assembled group says the use of a highly efficient combined gas and electric steam turbine (COGES) system, in combination with an all-electric design, offers exceptional performance with several advantages. Propelling the ship with electrical motors enables the power generation and propulsion systems to be placed in separate sections of the ship. And with the COGES system providing power for both propulsion and auxiliary systems, an engine room is not needed any more. So, the power plant, together with the integrated LNG tanks, could be moved below the deck house, freeing up considerable space for more container slots.

In addition to the improved overall arrangement of the vessel, a tailored hull shape and new propeller design adds to the overall efficiency. The novel hull form with vertical bow is tailor made to the operational profile of the vessel, and with a high efficiency propeller in combination with a contra-rotating pod, the total propulsive efficiency is increased by around 5%. Full details of the PERFECt II are viewable HERE.

The Oslo show also meant the opportunity for DNV GL and Oshima Shipbuilding to announce a new state-of-the-art 65,000 deadweight tonne open-hatch general cargo carrier design. The design concept was developed by both companies in a joint project and the design is Intended to suit a wide range of project cargoes and packaged goods. The design includes composite tween decks to maximize space utilization and save weight and this tween deck solution was also awarded an Approval in Principle (AiP) by DNV GL.

The new design features a high cubic and deadweight capacity at a shallow draught, enabled by an increased breadth without compromising performance. This allows the ship to enter a large number of ports. It has eight box-shaped cargo holds with full-width hatch openings, including two long holds for larger project cargoes. The vessel is 210 metres overall with a 35 metre beam and a maximum draught of 13.1 metres. Cubic capacity for cargo stands at 77,000 m3.

One of the design’s most prominent features is the use of tween decks to maximizes the vessel concept’s space utilization. Jointly developed by Oshima, DNV GL, CompOcean and IKNOW Machinery, the tween decks are made of composite material, which also makes them 50% lighter than steel versions, without sacrificing any of the functionality, service or safety. In addition, the design boasts battery assisted crane operations, a propulsion arrangement with a PTO/PTI shaft generator and the possibility to select different fuel and technology options to meet current and future emissions regulations.

Yet another announcement today told of how project partners BHP, Fortescue, Mitsui O.S.K. Lines (MOL), Rio Tinto, SDARI, U-Ming, Woodside together with DNV GL presented the results from stage one of their ‘Green Corridor’ joint industry project (JIP). The JIP has demonstrated the commercial potential and technical feasibility of LNG-fuelled bulkers in a ‘green corridor’ iron ore and coal trade between Australia and China. The result is an LNG-fuelled Newcastlemax design which is in the process of receiving Approval in Principle (AiP) from DNV GL.

The idea of developing LNG-fuelling infrastructure for the vessels operating on the Australia–China iron ore and coal trade route has been contemplated by major charterers, ship owners and operators for many years. As LNG production has climbed, especially in Australia, and in recognition of the upcoming IMO restrictions on sulphur emissions, the option of LNG as a single-system solution for emissions compliance has become ever more attractive. Chinese ship designer SDARI developed the design of the 210,000 dead weight tonne Newcastlemax bulk carrier based on their highly energy efficient Green Dolphin design. Dual fuel engines were quickly decided upon by the JIP partners, as this is a mature technology with multiple suppliers offering solutions, and the dual fuel design providing operational redundancy.

Based on fuel consumption analyses an LNG fuel tank size of approximately 6,000 m3 was found to be optimal, with bunkering in Australia for the round-trip. Several locations for the LNG fuel tank were considered, and finally the optimal solution was found, placing the two LNG fuel tanks directly above the engine room and submerged a few metres below the main deck. This innovative design offers protection for the fuel tanks, enhances fire protection, and does not reduce the cargo carrying capacity, even for volumetric cargoes such as coal.

Dimensions for the new vessel see her with a 300 metre overall length, a 50 metre beam and a depth of 25.2 metres with a scantling draught (maximum safe loading draught)set at 18.5 metres and a cargo holds volume of 225,000 m3.

A collaboration between NYK and DNV GL, supported by engine manufacturer MAN Diesel & Turbo, which began in November 2015 has produced the first results of an ongoing maritime data centre pilot project. The data centre collects operational data from NYK vessels on DNV GL’s recently launched Veracity industry data platform, for monitoring vessel performance and condition-based maintenance schemes. Over the past 18 months, four NYK container vessels have been uploading operational data to the platform. An extensive amount of engine data has been collected, for use in vessel performance analysis and a condition-based maintenance and survey scheme. The pilot project has been run in several phases. The first phase has been to build the required components, such as data collection and data management.

The second phase focuses on testing data quality, security, access rights and curation of data for use in various applications such as predictive maintenance and vessel performance. And the upcoming third phase will look to pilot new digital business models. As part of the pilot project, a hierarchical data model is developed, creating a digital twin, which links sensor signals from equipment on board the vessels to support both simple queries and advanced analytics. Machine learning algorithms evaluate the data quality in terms of uniqueness, completeness, and a variety of other parameters. By drilling down into the data, the ship manager can see if all sensors on board the vessel are working properly and easily identify non-performing sensors which may lead to low data quality or missing data during a voyage. Knut Ørbeck-Nilssen, CEO DNV GL – Maritime, commented:

“We are honoured that NYK and MAN Diesel & Turbo have entrusted us with their valuable data and worked to explore the future of maritime big data infrastructure, value creation and business models. As a classification society our main role is to assess the condition of the hull and critical components. With this pilot project we are able to test a sensor-based class concept where condition-based surveys may be performed. Furthermore, the project has allowed us to test how Veracity functions in terms of data quality, security and access rights. The pilot project has also been a valuable test bed for data standardisation and data quality, including curation of the data for further use.”

Finally DNV GL has also published a report ‘Low Carbon Shipping towards 2050’ assessing the potential for greenhouse gas (GHG) emissions reduction from shipping towards 2050, based on a new computational model. The model can evaluate various scenarios for both individual ship segments and the industry as a whole. It can also evaluate the effectiveness of various solutions for reducing GHGs.