Free-Piston Engines: A Possible Route to Hybrid-Electric Vehicles

A Sandia team is pursuing a novel route to hybrid-electric vehicles: the free-piston engine. So called because the piston is not mechanically linked to other engine systems, such as the crankshaft, the free-piston engine may provide greater efficiency than its conventional diesel and gasoline counterparts. Fueled by renewably sourced hydrogen, it also could one day…

ACME: Climate Modeling Powered by DOE Supercomputers, Tamed by Uncertainty Quantification

Facing increasing evidence of climate change, scientists around the world are working to improve climate modeling, hoping to provide decision makers solid projections to guide the development of mitigating policies. Khachik Sargsyan is leading a Sandia effort to strengthen climate models through uncertainty quantification (UQ) for the Accelerated Climate Model for Energy (ACME) program. The…

Robert Barlow Awarded Combustion Institute’s Alfred C. Egerton Gold Medal

Sandia National Laboratories scientist Robert Barlow was awarded the Alfred C. Egerton Gold Medal at the 35th International Symposium on Combustion in San Francisco on August 6. Given every two years by the Combustion Institute, the award recognizes “distinguished, continuing, and encouraging contributions to the field of combustion.” Lawrence Harding of Argonne National Laboratory won…