29 Dec '16, 6pm

Dolphin Tail More Efficient Than Propeller For Ships

Dolphin Tail More Efficient Than Propeller For Ships

Scientists and engineers in Norway have developed a new way of moving ships through the water that resembles how a dolphin tail or whale tail propels those animals forward. They say the new design is up to 90% efficient whereas a traditional propeller is only about 50% efficient. Once perfected, the so-called “Flapping Foil” could reduce fuel costs for ships dramatically. Shipping is vitally important to Norway’s economy. The nation is nearly surrounded by the sea. It also has hundreds of fjords and lakes that must be crossed regularly by people and cargo. Increasing the fuel economy of its many ferries and freighters would pay big dividends for the local economy, benefits that could apply to all ships eventually.

Full article: http://gas2.org/2016/12/29/dolphin-tail-more-efficient-pr...

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Reducing Emissions From Heavy Trucks And Ships Critical To Sustainability

Reducing Emissions From Heavy Trucks And Ships ...

gas2.org 31 Dec '16, 10pm

Once the containers arrive in port, heavy duty trucks take over the task of hauling them to market. Virtually all of those...