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Efficiency

— Automotive

Mercedes A45 AMG gets powerful refresh

By - July 1, 2015 32 Pictures

At what point does a hot hatch become a pint-sized sports car? The Mercedes A45 AMG was already blurring the line, but the engineers over at AMG's Affalterbach headquarters decided that the pint-sized turbo terrier needed more power. Thanks to an extra 15 kW (20 hp) from its 2.0-liter motor, the updated A45 AMG will now hit 100 km/h (62 mph) in just 4.2 seconds.

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— Marine

Wärtsilä's new 31 becomes the most efficient 4-stroke diesel engine in the world

By - June 22, 2015 4 Pictures

Finnish engine manufacturer Wärtsilä must be a fascinating place to visit. The company manufactures some of the most mind-bendingly enormous marine diesel engines in the world, like the record-breaking, 89-foot high, 44-foot long, 110,000 horsepower RTA96-C we wrote about more than 10 years ago. Now, Wärtsilä has another entry in the Guinness Book of Records ... for the world's most efficient 4-stroke diesel engine.

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— Automotive

Freightliner SuperTruck shows other transport trucks how efficiency is done

By - April 6, 2015 3 Pictures
Back in 2009, the US Department of Energy issued its SuperTruck Challenge. The program provided funding for truck manufacturers to design and build a prototype vehicle that was at least 50 percent more freight-efficient than a baseline 2009 truck. Daimler Trucks North America recently unveiled its response – the Freightliner SuperTruck. It goes beyond the 50 percent figure, with a claimed efficiency increase of 115 percent. Read More
— Science

Device zaps oil to make it flow easier

By - March 2, 2015 1 Picture
It's a simple fact that the more fluid an oil is, the easier it is to pump. That's why oil companies typically heat sections of pipeline, to reduce the viscosity of the crude oil traveling within. Generating that heat still requires a fair amount of energy, however, plus the oil's reduced viscosity produces turbulence it its flow. Temple University's Prof. Rongjia Tao has developed what may be a better alternative – a device that electrifies the oil. Read More
— Electronics

New electrolyte to enable cheaper, less toxic magnesium-sulfur-based batteries

By - November 30, 2014 1 Picture
There's another promising contender in the race to supplant the dominance of lithium-ion and metal-hydride based batteries in the world of energy storage. New research from the Karlsruhe Institute of Technology's (KIT's) Helmholtz Institute Ulm (HIU) details the development of an electrolyte that can be used in new magnesium-sulfur battery cells that would be more efficient and inexpensive than the dominant types of batteries in use today. Read More
— Architecture

Green living: Top 10 sustainable houses

By - November 24, 2014 51 Pictures
The cost of a house can be counted in dollars, but the construction and running of a house takes a toll on the environment that's harder to measure. Increasing numbers of people are looking to minimize both environmental impact and financial outlay by outfitting their homes with sustainable technology, and the resulting boom in sustainable building is driving new levels of architectural innovation. With this in mind, Gizmag highlights ten remarkable sustainable houses. Read More
— Environment

Buddhist singing bowls could inspire highly efficient solar cells

By - September 14, 2014 1 Picture
While the unique shape of Buddhist singing bowls is vital to the creation of their signature sound, a researcher from Australia National University (ANU) has used their design as the inspiration for a new breed of solar cells. In completing his PhD at the University of Cambridge, Dr Niraj Lal found that just as the bowls cause sound to resonate, miniaturized versions can be made to interact with light in much the same way, inspiring solar cells better able to capture sunlight. Read More
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