Combustion Chemistry

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35th International Combustion Symposium a Resounding Success
Post, September 22, 2014 • Elaine Oran, a professor of engineering at the University of Maryland, gave the keynote address on “Understanding explosions: From catastrophic accidents to the creation of the universe.” (Photos by Dino Vournas) The 35th International Combustion Symposium, the premier conference on combustion science and application held on August 3–8 in San...
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A New Concept for Time-Resolved Fourier-Transform Spectroscopy
Post, November 22, 2013 • In developing the dual etalon frequency comb (DEFCOM) spectrometer, CRF researchers Haifeng Huang and David Chandler are refining a new concept for time-resolved Fourier-transform (FT) spectroscopy based on the interference between two transient frequency combs. By opening the door to many potential uses—including time-resolved, high-resolution, broad-band spectroscopy with a microsecond...
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ACME: Climate Modeling Powered by DOE Supercomputers, Tamed by Uncertainty Quantification
Post, September 22, 2014 • 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...
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Ahren Jasper and Nils Hansen lead combustion panel at AAAS
Post, March 7, 2013 • On Saturday, Feb. 16, CRF researchers Ahren Jasper and Nils Hansen organized a panel, Predictive Model of the Internal Combustion Engine, at the annual American Association for the Advancement of Science (AAAS) meeting. The panel brought together world leaders from new and ongoing multi-institutional programs designed to address the challenges...
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Coal Use and Carbon Capture Technologies
Post, July 31, 2012 • Coal is one of the most abundant fossil fuels and thus has a long history of use, from heating to steel production to power generation. Though coal use is both reliable and inexpensive, it is also a major producer of carbon dioxide (CO2) emissions. Research into carbon capture and storage...
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Craig Taatjes To Be Awarded Polanyi Medal for Pioneering Work in Combustion Chemistry
Post, November 27, 2013 • Sandia combustion chemist Craig Taatjes, whose groundbreaking work on Criegee intermediates has provided scientific insight into hydrocarbon combustion and atmospheric chemistry, has been selected to receive the prestigious Polanyi Medal at the 23rd International Symposium on Gas Kinetics and Related Phenomena, which will be held on July 20–25, 2014, in...

CRF Article Chosen by The Journal of Chemical Physics to Commemorate 80th Anniversary
Post, October 18, 2013 • A 2012 article by CRF researchers David Chandler and the late Kevin Strecker, “Dual-etalon frequency-comb cavity ringdown spectrometer” was chosen by The Journal of Chemical Physics as one of 80 articles to highlight the 80 years of outstanding work published in the journal. Recently retired CRF researcher Steve Binkley is...

CRF Paper Among Most Cited Journal of Physical Chemistry Articles
Post, September 6, 2013 • An article by Oliver Welz, Judit Zádor, John D. Savee, Leonid Sheps, David L. Osborn, and Craig A. Taatjes, “Low-temperature combustion chemistry of n-butanol: Principal oxidation pathways of hydroxybutyl radicals,” was among the top 20 most-cited articles for the Journal of Physical Chemistry A for the month of July. In...
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CRF Research Seeks to Improve Confidence in Large Eddy Simulations
Post, May 30, 2014 • Allowing solutions unattainable with direct numerical simulation and offering far greater accuracy than conventional engineering methods, large eddy simulation (LES) is now widely used for studying complex thermophysics in propulsion and power systems. However, because LES demands extremely complex tools, predictive LES has been problematic, leading to sometimes ambiguous results...
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CRF Researcher on Organizing Committee for Turbulent (Non)Premixed Flames Workshop
Post, October 3, 2012 • CRF researcher Rob Barlow served on the organizing committee for the Turbulent (Non)Premixed Flames (TNF) workshop, held in Darmstadt, Germany from July 26-28, 2012. The TNF workshop, which was hosted by the Technical University of Darmstadt, was attended by several CRF researchers and focused on experimental and computation work in...

CRF Researchers Honored by DOE
Post, July 10, 2014 • Two Sandians received the DOE Hydrogen and Fuel Cell Program achievement award. Pictured (from left to right) are Erika Sutherland (DOE FCTO), Brian Somerday, Chris San Marchi, and Will James (DOE FCTO). The Annual Merit Review and Peer Evaluation Meeting held on June 17, 2014, gave two DOE groups, the...

CRF Researchers Make Direct Kinetic Measurements of Criegee Intermediate
Post, May 29, 2013 • Researchers at Sandia National Laboratories’ Combustion Research Facility, the University of Manchester, Bristol University, University of Southampton, and Hong Kong Polytechnic have successfully measured reaction rates of a second Criegee intermediate, CH3CHOO, and proven that the reactivity of the atmospheric chemical depends strongly on which way the molecule is twisted....
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CRF Reunion Luncheon Brings Together Staff, Retirees, Postdocs, and Visitors
Post, September 12, 2014 • With more than100 visiting researchers each year, many paths cross at the Combustion Research Facility. The CRF reunion luncheon, held during the 35th International Symposium on Combustion in San Francisco the first week of August, brought together a number of current staff, retirees, past and present postdocs, and other visitors....
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CRF Visitors, March 2014
Post, May 5, 2014 • Xinyu Zhao Xinyu Zhao 1/13/14-3/7/14 Host: Jackie Chen Xinyu Zhao is a roving postdoctoral fellow at the Combustion Energy Frontier Research Center (a DOE-funded center led by Princeton University focused on predictive modeling to improve the design of advanced engines) who is co-mentored by Dan Haworth of Pennsylvania State University...

Criegee intermediate research featured in Science Roundup
Post, May 14, 2013 • Craig Taatjes and Davis Osborn’s paper, “Direct Measurements of Conformer-Dependent Reactivity of the Criegee Intermediate CH3CHOO,” was one of 12 papers featured in the April Science Roundup, a monthly review of highlights for AAAS members. The paper was published in the April 12 edition of Science magazine. In the paper,...

David Chandler Named IAMS Advisory Board Member
Post, October 18, 2013 • Sandia chemist David Chandler has been named to the 7th Advisory Board of the Institute of Atomic and Molecular Sciences (IAMS). Dr. Chandler’s term will run from September 2013 through August 2016. Advisory Board members review research programs at IAMS and recommend scientific directions. IAMS is one of 24 research...

David Osborn Receives Lockheed Martin NOVA Award
Post, September 7, 2013 • David Osborn Chemist David Osborn was recently awarded a Lockheed Martin NOVA Award. This award honors individuals who have made outstanding contributions to Lockheed Martin’s mission and business objectives in the four categories of exceptional service, leadership, teamwork, and technical excellence. David received a Technical Excellence Award for his groundbreaking...

Dennis Siebers Leaves Behind a Lasting Legacy in Engine Combustion Research
Post, July 8, 2014 • Dennis Siebers Nearly 40 years ago, Dennis Siebers was drawn to Sandia for the opportunity to perform “exceptional service in the national interest.” In July, his 38-year career at Sandia, most of it spent in the CRF, came to a close with his retirement. “It’s difficult to measure the impact...
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EERE Officials Visit CRF
Post, May 21, 2014 •   Paul Miles leads David Danielson, on the far left, and the rest of the group through the small-bore diesel/light-duty diesel laboratory. On April 14, officials from the DOE’s Office of Energy Efficiency and Renewable Energy (EERE) visited the Combustion Research Facility. The guests included David Danielson, EERE Assistant Secretary;...
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ExaCT offers “proxy apps”
Post, May 22, 2012 • This month, we debuted the new website for The Center for Exascale Simulation of Combustion in Turbulence (ExaCT). The ExaCT group is actively developing a number of “proxy apps” that represent key aspects of structured-grid adaptive PDE-based combustion simulations. A subset of these proxy apps are available to the public....

ExaCT offers "proxy apps"
Post, May 22, 2012 • This month, we debuted the new website for The Center for Exascale Simulation of Combustion in Turbulence (ExaCT). The ExaCT group is actively developing a number of “proxy apps” that represent key aspects of structured-grid adaptive PDE-based combustion simulations. A subset of these proxy apps are available to the public....

ExaCT Website Debuts
Post, May 8, 2012 • Last month we talked about Exascale Computing and Sandian Dr. Jackie Chen’s collaborative grant with Dr. John Bell of Lawrence Berkeley National Laboratory to establish the Center for Exascale Simulation of Combustion in Turbulence (ExaCT). Our new ExaCT website is now live and full of detailed information on the people,...
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Faculty and Students Pursue CRF Research under DOE Programs
Post, July 17, 2014 • Under the supervision of mentor Ethan Hecht, Samira Iqbal of Las Positas College works on a reactor that is used to characterize the kinetics of pulverized coal oxy-combustion under pressure. The DOE Office of Science Workforce Development for Teachers and Scientists (WDTS) initiative maintains a decades-long legacy of developing the...
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February CRF Visitor Departures
Post, April 17, 2014 • Xiaoying Han Xiaoying Han 2/3/2014-2/14/2014 Host: Habib Najm As part of an ongoing collaboration with Habib Najm, Professor Xiaoying Han of Auburn University (Alabama) returned to the CRF to continue research on methods for model reduction in stochastic chemical systems. Prof. Han’s work is focused on developing a theoretical framework...
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