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Graphene Membranes May Lead To Enhanced Natural Gas Production, Less CO2 Pollution, Says CU Study

By Guest PostOctober 16, 2012Environment, Science2010, andre geim, argon, atomic crystal, atomic scale, carbon atom, carbon dioxide, chicken wire, colorado boulder, diameter, emission, energy-efficient, engineering faculty, England, exhaust pipe, gas molecule, graphene membrane, hexagonal, hydrogen, industrial scale, john pellegrino, konstantin novoselov, lattice, luda wang, manchester university, membrane, methane, molecular sieve, molecular size, nanometer, natural gas, nature nanotechnology, nitrogen, nobel prize, oxidative etching, pore, power plant, production, scott bunch, sieving, size selective, steven koenig, sulphur hexafluoride, ultraviolet light, university

Engineering faculty and students at the University of Colorado Boulder have produced the first experimental results showing that atomically thin graphene membranes with tiny pores can effectively and efficiently separate gas molecules through size-selective sieving.

The findings are a significant step toward the realization of more energy-efficient membranes for natural gas production and for reducing carbon dioxide emissions from power plant exhaust pipes.

Mechanical engineering professors Scott Bunch and John Pellegrino co-authored a paper in Nature Nanotechnology with graduate students Steven Koenig and Luda Wang detailing the experiments. The paper was published Oct. 7 in the journal’s online edition. (more…)

Report: IBM Supercomputers Are Most Energy Efficient in the World

By Guest PostNovember 19, 2010Technologybladecenter, blue gene, China, dona crawford, energy-efficient, green500, green500 list, high-performance computing, hpc, hybrid clusters, ibm, ibm next generation blue gene supercomputer, particle physics, qcd, quantum chromodynamics, rick stevens, supercomputers, system x idataplex

*Next Generation Blue Gene prototype judged most efficient by Green500.org*

ARMONK, N.Y., – 19 Nov 2010: IBM supercomputers are the most energy efficient supercomputers in the world, according to the latest Supercomputing ‘Green500 List’ announced by Green500.org. A prototype of IBM’s next generation Blue Gene supercomputer is #1 on the list.

The list shows that 15 of the top 25 most energy efficient supercomputers in the world are built on IBM high-performance computing technology. The list includes supercomputers from China to Germany and the United States that are being used for a variety of applications such as astronomy, climate prediction and pharmaceutical research. IBM also holds over half of the top 100 positions on this list. (more…)

Main Climate Threat from CO2 Sources Yet to Be Built

By Guest PostSeptember 10, 20102 commentsEnvironmentcarbon dioxide, carbon-free technologies, carnegie institution for science, clean energy, climate change, coal-fired power plant, damon matthews, emissions, energy-efficient, ken caldeira, steven davis

Stanford, CA — Scientists have warned that avoiding dangerous climate change this century will require steep cuts in carbon dioxide emissions. New energy-efficient or carbon-free technologies can help, but what about the power plants, cars, trucks, and other fossil-fuel-burning devices already in operation? Unless forced into early retirement, they will emit carbon dioxide into the atmosphere for decades to come. Will their emissions push carbon dioxide levels beyond prescribed limits, regardless of what we build next? Is there already too much inertia in the system to curb climate change?

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The Salp: Nature’s Near-Perfect Little Engine Just Got Better

By Guest PostAugust 10, 2010Environment, Natureair, appendicularians, atmosphere, automobiles, caltech, carbon dioxide, CO2, eclectic eaters, energy-efficient, jellyfish, kelly rakow sutherland, larry madin, laurence p madin, mathematical model, mesh, microscopic, MIT, ocean-dwelling salps, phytoplankton, protozoans, roman stocker, salp, self-propelling, tom kleindinst, whoi, woods hole oceanographic institution

What if trains, planes, and automobiles all were powered simply by the air through which they move? Moreover, what if their exhaust and byproducts helped the environment?

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Tag Archives: energy-efficient

Graphene Membranes May Lead To Enhanced Natural Gas Production, Less CO2 Pollution, Says CU Study

Report: IBM Supercomputers Are Most Energy Efficient in the World

Main Climate Threat from CO2 Sources Yet to Be Built

The Salp: Nature’s Near-Perfect Little Engine Just Got Better