News tagged with electrical power
Japan inches towards restarting nuclear reactors
Japan on Wednesday inched closer to re-starting idle nuclear reactors, just weeks after the last one was switched off amid public disquiet following the disaster at Fukushima.
Technology / Energy & Green Tech
8 hours ago |
5 / 5 (2) |
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Grid realities cancel out some of wind power's carbon savings
(Phys.org) -- Wind energy lowers carbon emissions, but adding turbines to the current grid system does not eliminate emissions proportionally, according to a report by researchers at the Argonne National Laboratory.
Technology / Energy & Green Tech
13 hours ago |
2.8 / 5 (4) |
4
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A way to reduce the Internet's energy drain
(Phys.org) -- Swiss researchers at EPFL have developed a device intended for monitoring and saving the energy consumed by large data centers. It was developed in collaboration with Credit Suisse, which has ...
Technology / Energy & Green Tech
May 28, 2012 |
4.8 / 5 (5) |
0
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Sci-fi no longer, NREL engineers smart homes
Thanks to TV shows such as The Jetsons and Star Trek, many Americans grew up dreaming that homes of the future would be equipped with fantastic high-tech features. From automatic food dispensers to sliding do ...
Technology / Energy & Green Tech
May 28, 2012 |
5 / 5 (1) |
0
Scotland passes turbine test to harness tidal power
(Phys.org) -- An underwater turbine being used for harnessing tidal power to generate electricity for homes and businesses has successfully completed its testing period in the island of Eday, one of Orkney’s ...
Technology / Energy & Green Tech
May 20, 2012 |
4.6 / 5 (18) |
41
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LED's efficiency exceeds 100%
(PhysOrg.com) -- For the first time, researchers have demonstrated that an LED can emit more optical power than the electrical power it consumes. Although scientifically intriguing, the results won’t ...
Mar 05, 2012 |
4.4 / 5 (65) |
60
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Researchers develop technique to keep cool high-power semiconductor devices used in wireless applications, electric cars
A group of researchers at the University of California, Riverside Bourns College of Engineering have developed a technique to keep cool a semiconductor material used in everything from traffic lights to electric cars.
May 08, 2012 |
4.8 / 5 (6) |
0
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Rational design can improve hydrogen fuel cell efficiency
(PhysOrg.com) -- Hydrogen fuel cells, in which the chemical energy of hydrogen is converted into electricity, offer the potential for a wide variety of applications, especially in transportation and power ...
Feb 29, 2012 |
4.4 / 5 (12) |
0
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Getting in tune: Researchers solve tuning problem for wireless power transfer systems
Researchers from North Carolina State University have developed a new way to fine-tune wireless power transfer (WPT) receivers, making the systems more efficient and functional. WPT systems hold promise for charging electric ...
May 15, 2012 |
4.7 / 5 (6) |
1
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Physicists demonstrate conditions for laser-driven fusion
(PhysOrg.com) -- Currently, commercial nuclear power plants generate electricity using nuclear fission, in which an atom’s nucleus is split into lighter nuclei. But scientists are also researching the ...
Mar 15, 2011 |
4.3 / 5 (27) |
26
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Rechargeable lithium-sulfur batteries get a boost from graphene
(PhysOrg.com) -- By wrapping tiny sulfur particles in graphene sheets, researchers from Stanford University have synthesized a promising cathode material for rechargeable lithium-sulfur batteries that could ...
Nanotechnology / Nanomaterials
Jul 13, 2011 |
4.2 / 5 (22) |
53
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Tiny heat engine may be world's smallest
(PhysOrg.com) -- Steam engines, combustion engines, and diesel engines are all different types of heat engines, which operate by converting heat energy into mechanical work. Although heat engines have existed ...
Feb 02, 2011 |
4.7 / 5 (29) |
10
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Folding light: Wrinkles and twists boost power from solar panels
Taking their cue from the humble leaf, researchers have used microscopic folds on the surface of photovoltaic material to significantly increase the power output of flexible, low-cost solar cells.
Apr 27, 2012 |
4.9 / 5 (15) |
8
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Solving the solar cell power conversion dilemma
(PhysOrg.com) -- "There is a lot of interest in creating more efficient solar cells that are also simpler than many of the designs common now," Wladek Walukiewicz tells PhysOrg.com. "We think that, throug ...
Jan 24, 2011 |
4.6 / 5 (25) |
19
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Revealing how a battery material works
Since its discovery 15 years ago, lithium iron phosphate (LiFePO4) has become one of the most promising materials for rechargeable batteries because of its stability, durability, safety and ability to deliver ...
Nanotechnology / Nanomaterials
Feb 08, 2012 |
5 / 5 (7) |
0
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