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Yale Engineers Making Solar Power More Efficient

By Guest PostDecember 14, 2011Environment, Scienceandre d taylor, applied physicists, arrays, chinedum o osuji, clean energy technology, electricity, energy, engineers, flow of electrons, fraction of light, hybrid organic inorganic pv devices, lisa d pfefferle, magnetic fields, photovoltaic systems, photovoltaics, polymer coated nanowires, pv, pv systems, sohrab ismail beigi, solar cell, solar power technology, yale university

Innovations by a team of Yale University researchers could lead to improvements in basic solar power technology that result in lower-cost, higher-efficiency photovoltaic systems.

Photovoltaics (PV) directly convert sunlight into electricity. PV systems can be arrayed on rooftops to generate electricity for entire buildings, among other uses. Less expensive, more efficient systems could encourage broader use of this clean energy technology. (more…)

Exeter Physicist Advances Early Universe Theory

By Guest PostSeptember 25, 2011Scienceearly universe theory, extrasolar planets, intergalactic media, magnetic fields, star formation

Research by a University of Exeter astrophysicist has helped to explain how the first stars and galaxies formed

Research led by Professor Gilles Chabrier of the University of Exeter suggests that large magnetic fields were generated shortly after the Big Bang and played a key role in the formation of the first stars and galaxies

The international team of researchers, headed by Professor Chabrier and Dr Christoph Federrath of the Ecole Normale Supérieure de Lyon (France), used three-dimensional computer simulations to make their discovery. Their simulations show that even under extreme physical conditions, magnetic fields are efficiently amplified by turbulent flows. The findings are now published in the journal Physical Review Letters. (more…)

Look Ma, No Hands: Yale Engineers Invent a Magnetic Fluid Pump with No Moving Parts

By Guest PostSeptember 18, 2011Scienceadvertising industry, ferrofluids, ferrohydrodynamic pumping mechanism, hollywood, hur koser, leidong mao, liquid, liquid fuels, magical materials, magnetic, magnetic fields, magnetic nanoparticles, markus zahn, microfluidic devices, nasa scientists, national science foundation, non mechanical, outer space, shihab elborai, xiaowei he

Used in Hollywood and the advertising industry to create exotic special effects, ferrofluids are seemingly magical materials that are both liquid and magnetic at once. In a study published today in Physical Review B, Yale electrical engineering professor Hur Koser and colleagues from the University of Georgia and Massachusetts Institute of Technology demonstrate for the first time an approach that allows ferrofluids to be pumped by magnetic fields alone. The invention could lead to new applications for this mysterious material.

Developed in the 1960s by NASA scientists seeking a non-mechanical method for moving liquid fuels in outer space, ferrofluids are made up of magnetic nanoparticles suspended in liquids such as oil, water, or alcohol. Though numerous industrial, commercial, and biomedical applications for ferrofluids have since been created, the original goal-to pump liquids with no machinery-remained elusive, until now. (more…)

Tag Archives: magnetic fields

Yale Engineers Making Solar Power More Efficient

Exeter Physicist Advances Early Universe Theory

Look Ma, No Hands: Yale Engineers Invent a Magnetic Fluid Pump with No Moving Parts