The “Vectis Falcon”, one of four Super Green 8500 vessels for Carisbrooke Shipping. Image: GL
Germanischer Lloyd (GL) has presented UK-based shipper Carisbrooke Shipping with energy efficiency design index (EEDI) certificates for four low emission dry cargo vessels, the German classification society said in a statement today. The four 8500 DWT vessels – Vectis Eagle, Falcon, Harrier and Osprey – are built by Chinese shipyard Jiangsu Yangzijiang Shipbuilding and incorporate a number of innovative features, including the distinctive Groot Cross-Bow®.
Each vessel has been built to Finnish Swedish Iceclass 1A and have been designed and constructed to optimize energy efficiency in almost every facet of operation.
The Groot Cross-Bow® has been incorporated to minimize vessel pitching and reduce the load fluctuations on machinery and speed loss in heavy weather – resulting in less wasted energy and fuel consumption. Meanwhile the high bow cuts down on the amount of water shipped on deck in heavy weather. The extremely large and efficient ducted propeller has been designed to work with the hydro-dynamically optimized hull form to match the performance of similar vessels with significantly reduced power requirements. As a result of this a derated 2400 kW main engine has been fitted which further reduces exhaust emissions & fuel consumption.
“At GL we see the EEDI as a powerful driver of innovation within the maritime industry, both in terms of shipyards and designers focusing more on energy efficiency and taking advantage of new computational tools and ship owners who now have a clear guide to rely on in ordering new ships,” said Dr Pierre C. Sames, SVP Research and Rule Development of GL Maritime Services. “Our calculations show that these new vessels are some 30% below the reference EEDI line, which is a reflection of the commitment that Carisbrooke has made to invest in an extremely efficient vessel.”
As well as the focus on propulsive efficiency the vessels have equipment and operational features that have been included to further reduce their environmental impact. The two 80t cranes are fully electric and use 30% less power than similar sized electro-hydraulic cranes, all winches on the vessels are also electric – further reducing power consumption and the risks of pollution. The sterntubes are water lubricated and the oils used above decks are fully biodegradable.
“Carisbrooke Shipping has always been proud of the vessels that we have built and with our new super green 8500 vessels we have never been more so. Since entering service the ships have proven to be extremely efficient and we have significantly reduced our carbon footprint,” said Simon Merritt, Technical Manager Carisbrooke Shipping Ltd. “The fuel savings and shorter passages are always attractive to charterers and the eco-efficiency of the vessels really is a credit to the company and those who have been involved. Carisbrooke shipping will continue to look into new ways to ensure that their ships remain at the top of the Premier League of Environmentally Friendly Low Emission ships.”
“Our goal at Groot Ship Design is to design and optimize the complete vessel together with the owner intensively; we call it ‘Co-Creation in Shipdesign’. Working together with all the parties involved, like classification society GL, research institutes and the manufacturers of the main and auxiliary engines and propeller, we are able to deliver the design which best fit the owner’s requirements,” said Jan Willem Cuperus, spokesman for Groot Ship Design.
“We are very pleased the final vessels show the very positive EEDI and prove the results from the calculations and tests we made during the design. We are sure these vessels will set the benchmark in this market segment giving Carisbrooke an advantage compared to others.”
The EEDI, which will come into force in 2013, seeks to spur design innovation in ship building, thereby reducing CO2 emissions. Certification acts not only as a good signifier of the vessel’s efficiency and quality but can serve a useful benchmarking function for comparing vessels within a fleet.
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