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Search results for “Fuel Cells”

1,000+ results for "Fuel Cells"

Roger scramjet

A new kind of cruise missile engine, called a scramjet, has been tested to achieve Mach 6.5 speeds in simulated hypersonic conditions, outperforming traditional ramjets. The engine is being developed for use in the HyFly joint DARPA/ONR Flight Demo program, aiming to launch missiles at speeds up to Mach 6 and ranges of 600 nautical miles.

X-ray camera images fuel injection in action

Researchers at Cornell University have developed a novel X-ray camera capable of capturing microsecond images of events hidden to optical cameras. The camera successfully imaged shock waves generated by high-pressure fuel sprays, providing new insights into the distribution and atomization of diesel fuel.

SourceCornell University·JournalScience·DateMar 4, 2002

Plankton power

Researchers at ONR and DARPA are developing OSCAR, an oceanic fuel cell that harnesses organic matter in sea sediments to generate electricity. The early versions of OSCAR have been generating about 50 milliwatts per square meter, sufficient power for small calculators.

Penn engineers develop fuel cell that uses liquid diesel, the first such device to run on a widely available fuel

The University of Pennsylvania team has developed a fuel cell that can run directly on liquid diesel, sidestepping the need to reform fuels into hydrogen. This breakthrough could enable wider adoption of fuel cells in transportation and other applications, offering a cleaner alternative to traditional energy sources.

SourceUniversity of Pennsylvania·JournalJournal of The Electrochemical Society·DateSep 4, 2001

Flying low-drag trucks: aerodynamic concepts & controls developed for aircraft will cut fuel use, improve control, in tractor-trailers

Researchers at Georgia Tech have applied aerodynamic concepts from aircraft to tractor-trailers, reducing drag by up to 50% and improving directional control, traction, and braking. The Circulation Control system uses compressed air to create lift and reduce rolling resistance, with potential fuel savings of up to 12%.

Lard-fired boiler cleaner than fuel oil

Researchers found that lard and choice white grease produce less nitrogen oxides, ash, and carbon monoxide when burned compared to No. 6 fuel oil. The study suggests that these alternatives could be a cleaner and more sustainable option for the food processing industry.

Cheapskate prize

The stern flap design has reduced the power required to propel Spruance and Ticonderoga-class destroyers, resulting in annual fuel savings of 3,600-4,700 barrels. The Navy plans to retrofit these ships with stern flaps, as well as Arleigh Burke and Oliver Hazard Perry classes, leading to an estimated $380 million in life cycle savings.

Coal-derived fuel burns cleaner

Researchers at Penn State have discovered that dimethyl ether (DME) produced from coal-derived syngas has lower carbon monoxide emissions compared to propane or butane. DME also exhibits similar or lower nitric oxide emissions in most cases, making it a viable alternative fuel.

Aviation fuel is best served well chilled

A simple cooling system can significantly reduce fuel vapour formation in aircraft tanks, minimizing the risk of explosion. The Polarjet system cools fuel to -1°C or below, reducing hydrocarbon vapours and oxygen levels, making planes safer without expensive modifications.

SourceNew Scientist·JournalThe New Scientist·DateSep 22, 1999

New Tests Show

Researchers have developed a new fuel formulation that produces 40-50 percent fewer unburned hydrocarbons and 20 percent less carbon monoxide compared to gasoline. The P-series fuel blend can power flexible fuel cars, offering an alternative to traditional gasoline.

Better Catalysts Could Bring Fuel Cells Down To Earth

Researchers develop new catalyst that significantly enhances methanol-air fuel cells' efficiency, enabling a more practical and sustainable power source. The breakthrough catalyst, composed of platinum, ruthenium, osmium, and iridium, presents a major improvement over existing platinum-ruthenium alloys.

SourcePenn State·JournalScience·DateJun 12, 1998

Too Hot To Handle

Researchers at Savannah River Technology Center found metal-munching bacteria thriving in sterile storage pond environments, threatening long-term nuclear fuel rod integrity. This ill-timed discovery comes as a global downturn in nuclear reprocessing leads to extended storage periods.

SourceNew Scientist·JournalThe New Scientist·DateMay 28, 1998

Future Supersonic Jets Pose Problems For Jet Fuel

Scientists are developing a solution to cool advanced supersonic jets by using jet fuel as a coolant, which can also circulate through the wings and fuselage. The research aims to address the problem of fuel degradation and carbon deposition that could cause maintenance issues with coal-derived jet fuels.

KU Researcher Adds A Dose Of Sugar To Diesel Fuel

A University of Kansas researcher has successfully demonstrated a method to convert grass, stalks, and farm byproducts into sugar for use as a primary component in fuel for diesel engines. The alternative fuel mixture is estimated to cost less than traditional diesel fuel and has already been tested in conventional diesel engines.

Kitchen Microwave Inspires Prototype Space Propulsion System

A prototype propulsion system powered by a kitchen microwave has the potential to reduce propellant needed by up to 50%, enabling longer satellite lifespans and cost savings. The microwave-powered thruster operates more efficiently than chemical systems and is safer, as it only produces thrust when microwaves are active.

Intelligent Computing Could Lower Price of Power

Researchers at Penn State have developed advanced computer techniques to improve the efficiency of nuclear and fossil fuel power plants. These new techniques can help extend the lifetime of fuel, increase operating efficiency, and save money, potentially leading to lower costs for consumers.