Combustion

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New Polarized-Depolarized Measurement Capability Extends Use of Raman/Rayleigh Methods to More Flame Types

Figure 1.  A second Raman/Rayleigh line-imaging detection unit allows researcher to simultaneously measure polarized and depolarized components of Raman scattering signals, helping to overcome fluorescence interference from soot precursors in hydrocarbon flames. Allowing single-shot measurements of all major species in nonsooting flames of simple fuels, such as H2 and CH4, spontaneous Raman scattering [...]

By | April 23rd, 2014|Capabilities, CRF, Energy, Facilities, News, News & Events, Research & Capabilities, Sensors & Optical Diagnostics, Transportation Energy|Comments Off on New Polarized-Depolarized Measurement Capability Extends Use of Raman/Rayleigh Methods to More Flame Types

New Conceptual Insights into Diesel Engine Fuel-Injection Processes

By combining advanced theory and high-fidelity large eddy simulation, Combustion Research Facility (CRF) researchers Rainer Dahms and Joe Oefelein (both in 8351) have provided new conceptual insights that promise to improve the understanding and prediction of fuel-injection processes in high-pressure diesel engine conditions. Their results, which experiments performed by CRF researchers Lyle Pickett and Julien [...]

By | April 15th, 2014|Capabilities, CRF, Energy, Facilities, News, News & Events, Research & Capabilities, Systems Analysis, Transportation Energy|Comments Off on New Conceptual Insights into Diesel Engine Fuel-Injection Processes

Two CRF Papers Named “Distinguished” for 34th International Symposium on Combustion

Two papers by CRF researchers have been named distinguished papers for the 34th International Symposium on Combustion held from July 29–August 3, 2012, in Warsaw, Poland. “Synchrotron photoionization measurements of fundamental autoignition reactions: Product formation in low-temperature isobutane oxidation” by Arkke Eskola, Oliver Welz, John Savee, David Osborn, and Craig Taatjes (all in Sandia’s Combustion [...]

By | October 22nd, 2013|Computational Modeling & Simulation, CRF, Energy, Facilities, News, News & Events, Partnership, Research & Capabilities, Transportation Energy|Comments Off on Two CRF Papers Named “Distinguished” for 34th International Symposium on Combustion

Northrop-Grumman, GE Partnerships Tap a Wide Range of Sandia Labs Experience

Sandia has signed a pair of umbrella cooperative research and development agreements (CRADAs) with Northrop Grumman Information Systems and General Electric Global Research that will broadly add to the Labs’ research. “These strategic agreements envision long-term partner­ships,” said Brooke Garcia, a Sandia business development specialist who helped negotiate the CRADAs. The Northrop-Grumman CRADA includes research [...]

Predictive Simulation of Engines

Focus areas for predictive simulation of advanced engines: Couple state-of-the-art Large-Eddy Simulation (LES) and optical engine experiments to provide significantly enhanced quantitative information and understanding. Spray modeling and experimentation in dense spray and nozzle internal flow regions, including physics like cavitation and flash boiling Spray Combustion Consortium (SCC) The Combustion Research Facility [...]

By | November 9th, 2010|Comments Off on Predictive Simulation of Engines

Stationary Power

Stationary Power Our work in stationary power includes the deployment of clean electricity, which requires integration with a modernized grid infrastructure, and enhancements in energy efficiency as a direct influence on energy productivity and economic competitiveness. Energy Conversion Efficiency High-efficiency conversion of low and  zero-carbon energy sources to electricity Grid [...]

By | November 4th, 2010|Comments Off on Stationary Power