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…

35th International Combustion Symposium a Resounding Success

The 35th International Combustion Symposium, the premier conference on combustion science and application held on August 3–8 in San Francisco, was a resounding success thanks to Sandia’s Combustion Research Facility (CRF). More than 1,500 researchers gathered from around the world to discuss the latest innovations in understanding and predicting combustion-related phenomena, approximately 250 more than…

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…