Researchers explore advantages of ported shroud turbochargers

(Phys.org) —The federal government wants more fuel-efficient vehicles on the country's highways and back roads, which often comes at the cost of reduced engine size and power. That can be hard to reconcile with a population ...

Top-class biofuel from the depths of the forest

Tops and branches from tree-felling sites are reborn in the laboratory as compact pellets. However, the energy industry will not act until the price is right.

Reducing fuel consumption of truck engines

A new model to explore how new ideas affect fuel consumption in large diesel engines has been developed by a world-leading research group in tribology, at Luleå University of Technology. Tribology is the science of interacting ...

Model allows engineers to test fuel system efficiency on computers

(Phys.org) —Engineers will be able to design better fuel systems for everything from motorcycles to rockets faster and more inexpensively because of a mathematical fuels model developed at The University of Alabama in Huntsville.

Amazing engines promise 60 to 100 mpg

It would be a mistake to count out the internal-combustion engine as yesterday's technology, soon to expire in a puff of exhaust gas. Electrification is coming, but meanwhile engineers have offered more innovation for the ...

NASA surpasses test facility record with J-2X powerpack test

(Phys.org) -- NASA's Stennis Space Center near Bay St. Louis, Miss., broke its own record Friday when it conducted a test on the new J-2X powerpack. The test lasted for 1,150 seconds, surpassing the previous record by more ...

NASA's J-2X engine kicks off 2012 with powerpack testing

(PhysOrg.com) -- A new series of tests on the engine that will help carry humans to deep space will begin next week at NASA's Stennis Space Center in southern Mississippi. The tests on the J-2X engine bring NASA one step ...

First J-2X combustion stability test a success

(PhysOrg.com) -- NASA conducted a key stability test firing of the J-2X rocket engine Dec. 1, marking another step forward in development of the upper-stage engine that will carry humans farther into space than ever before. ...

Beaming rockets into space

Space launches have evoked the same image for decades: bright orange flames exploding beneath a rocket as it lifts, hovers and takes off into the sky. But an alternative propulsion system proposed by some researchers could ...

Volcanic ash affects airplanes, weather, sunsets

(AP) -- In 1989, all four engines of a Boeing 747 over Alaska conked out after it flew into a cloud of volcanic ash. The crew was able to restart them, but incidents like that dramatize why hundreds of flights every year ...

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