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DNV GL reduces variations in ship construction to save fuel
DNV GL has launched a new service, named Build2Design, to help shipyards and shipowners improve the fuel economy of their ships by reducing variations in ships being built of the same design.
"We have compiled data that shows there is a large variation in fuel consumption between ships of the same design. This has led us to develop a new service, Build2Design, which aims at ensuring that the actual ship delivered is as good as its design," said business director for bulk carriers, Michael Aasland, in a company statement.
Said hydrodynamics chief Olav Rognebakke: "Build2Design is based on a solid theoretical foundation combined with the latest technology and uses advanced CFD calculations to identify the parameters that affect fuel consumption and the effect of each individual parameter."
In developing the new service, the company undertook a sensitivity analysis of over 20 parameters and considered both the complexity of addressing the parameter and the impact on fuel consumption of each parameter.
"We have taken a cost/benefit approach when selecting the parameters so that the shipowner obtains the maximum benefit with the minimum impact on the shipyard," said Mr Aasland.
From the first pilot project carried out on the Green Dolphin 38 design, a conservative estimate shows that a saving of two per cent can be achieved, which equates to 80 tonnes of fuel per year and a saving of US$50,000 per year.
Corresponding figures for a typical Capesize bulk carrier are 200 tonnes of fuel/year and a saving of $120,000/year.
The new service is being rolled out this spring, both through the Green Dolphin 38 pilot project for Goldenport at CSI Jiangsu and the first commercial project based on a Seahorse 35 design for Graig Shipping at Jiangdong SY.
"We have compiled data that shows there is a large variation in fuel consumption between ships of the same design. This has led us to develop a new service, Build2Design, which aims at ensuring that the actual ship delivered is as good as its design," said business director for bulk carriers, Michael Aasland, in a company statement.
Said hydrodynamics chief Olav Rognebakke: "Build2Design is based on a solid theoretical foundation combined with the latest technology and uses advanced CFD calculations to identify the parameters that affect fuel consumption and the effect of each individual parameter."
In developing the new service, the company undertook a sensitivity analysis of over 20 parameters and considered both the complexity of addressing the parameter and the impact on fuel consumption of each parameter.
"We have taken a cost/benefit approach when selecting the parameters so that the shipowner obtains the maximum benefit with the minimum impact on the shipyard," said Mr Aasland.
From the first pilot project carried out on the Green Dolphin 38 design, a conservative estimate shows that a saving of two per cent can be achieved, which equates to 80 tonnes of fuel per year and a saving of US$50,000 per year.
Corresponding figures for a typical Capesize bulk carrier are 200 tonnes of fuel/year and a saving of $120,000/year.
The new service is being rolled out this spring, both through the Green Dolphin 38 pilot project for Goldenport at CSI Jiangsu and the first commercial project based on a Seahorse 35 design for Graig Shipping at Jiangdong SY.
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