Christopher R. Shaddix
Manager, Combustion Research Facility, Plasma & Reacting Flow Science Department

Manager, Combustion Research Facility, Plasma & Reacting Flow Science Department
(925) 294-3840
Sandia National Laboratories, California
P.O. Box 969
Livermore, CA 94551-0969
Biography
Dr. Shaddix completed his PhD in Mechanical and Aerospace Engineering from Princeton University in 1993. He served as a National Research Council postdoctoral fellow at the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland. Since 1995, he has been employed as a research scientist and, more recently, as department manager at Sandia National Laboratories’ Combustion Research Facility (CRF) in Livermore, California. Dr. Shaddix has expertise in oxy-fuel combustion, the combustion and gasification of coal and biomass, the formation and oxidation of PAH and soot, and the application of optical and laser diagnostics.
Dr. Shaddix has collaborated extensively with university, industrial, and government research partners around the world. He is a past member of the Board of Directors of the Combustion Institute and is an Associate Editor of Combustion Science and Technology and Combustion Theory & Modelling. Dr. Shaddix helped initiate and has continued to actively serve on the organizing committees of the International Sooting Flames (ISF) workshop series and the Coal and Biomass Conversion (CBC) workshop series. Dr. Shaddix has authored or co-authored several book chapters and over 70 publications in major, peer-reviewed scientific journals.
Research Interests: Laser diagnostics, soot formation, coal and biomass combustion and gasification, oxy-fuel combustion, laminar and turbulent flames, and energy systems analysis. Google Scholar
Education
Degree | Major | Institution | Location | Year Completed |
---|---|---|---|---|
PhD | Mechanical and Aerospace Engineering | Princeton University | Princeton, New Jersey | 1993 |
MA | Mechanical and Aerospace Engineering | Princeton University | Princeton, New Jersey | 1990 |
BS | Mechanical Engineering | University of California, Davis | Davis, CA | 1988 |
Professional Organizations & Leadership
- Combustion Institute
- Fellow: 2020
- Member of the Board of Directors: 2016 to 2022
- Member, Executive Committee, U.S. Section: 2013 to 2017
- Member, Executive Committee of the Western States Section [Reprints Chair, Vice-Chair, Chair, and Past Chair]: 1997 to present
- Member: 1989 to present
- Tau Beta Pi, Engineering Honor Society
- Member: 1985 to present
Awards
Award | Year |
---|---|
CRF Bastress Award for Outstanding Industrial Combustion Research, Sandia National Laboratories | 2012 |
Honorable Mention Technical Paper, 22nd Annual International Pittsburgh Coal Conference | 2005 |
Richard A. Glenn Award, ACS Div. Fuel Chemistry, Most Outstanding Paper 207th National Meeting | 1994 |
Luigi Crocco Award for excellence in teaching, Princeton MAE Dept. | 1990 |
Grumman Award for excellence in academic performance, Princeton MAE Dept. | 1989 |
University of California Regents Scholar, UC Davis | 1986 |
Most Outstanding Sophomore Award, Phi Kappa Phi, UC Davis | 1985 |
Publications
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Quantifying the effect of CO2 gasification on pulverized coal char oxy-fuel combustion
Proceedings of the Combustion Institute. Published September 9, 2022 Publication ID: 80107 -
An Assessment of Current Understanding of the Greenhouse Gas Impacts from H2 Emissions
Published August 1, 2022 Publication ID: 80098 -
Soot Temperature Distributions in Turbulent Non-Premixed Ethylene and JP-8 Surrogate Jet Flames
Published May 1, 2021 Publication ID: 78667 -
Soot Temperature Distributions in Turbulent Non-Premixed Ethylene and JP-8 Surrogate Jet Flames
Published April 1, 2021 Publication ID: 78296 -
Analysis of laser focusing effect on quantification of LII images
Proceedings of the Combustion Institute. Published January 1, 2021 Publication ID: 65642 -
ISF Data Assessment
Published January 1, 2021 Publication ID: 75103 -
Experimental datasets on soot formation in turbulent non-premixed ethylene and JP-8 jet flames
Published January 1, 2021 Publication ID: 75109 -
Analysis of laser focusing effect on quantification of LII images
Published December 1, 2020 Publication ID: 72250 -
Pasteur?s Quadrant and Fundamental Insights into Oxyfuel Combustion
Published October 1, 2020 Publication ID: 71447 -
Computational fluid dynamics analysis of char conversion in Sandia’s pressurized entrained flow reactor
Review of Scientific Instruments. Published July 1, 2020 Publication ID: 74102 -
Soot Concentration Temperature and Radiant Emission Measurements in a Turbulent Ethylene Jet Flame
Published November 1, 2019 Publication ID: 66487 -
Analysis of Laser Focusing Effect on Quantification of LII Images
Published November 1, 2019 Publication ID: 66488 -
Analysis of Laser Focusing Effect on Quantification of LII Images
Published October 1, 2019 Publication ID: 65643 -
Single-shot Soot Particle Sizing in Turbulent Flames using Ultra-High-Speed Imaging
Published June 1, 2019 Publication ID: 69274 -
Soot Concentration Temperature and Radiant Emission Measurements in a Turbulent Ethylene Jet Flame
Published April 1, 2019 Publication ID: 68055 -
Towards Consistent and Reliable ISF Datasets
Published April 1, 2019 Publication ID: 68331 -
Soot Concentration Temperature and Radiant Emission Measurements in a Turbulent Ethylene Jet Flame
Published March 1, 2019 Publication ID: 67511 -
Planar Soot Particle Sizing via Ultra-High-Speed LII Imaging
Published December 1, 2018 Publication ID: 60648 -
Single-camera, single-shot, time-resolved laser-induced incandescence decay imaging
Optics Letters. Published November 1, 2018 Publication ID: 59859 -
High temperature gasification of high heating-rate chars using a flat-flame reactor
Applied Energy. Published October 1, 2018 Publication ID: 58189 -
The Effect of Bulk Gas Diffusivity on Apparent Pulverized Coal Char Combustion Kinetics
Published August 1, 2018 Publication ID: 63986 -
An intrinsic kinetics model to predict complex ash effects (ash film dilution and vaporization) on pulverized coal char burnout in air (O2/N2) and oxy-fuel (O2/CO2) atmospheres
Published August 1, 2018 Publication ID: 63987 -
The Effect of Bulk Gas Diffusivity on Apparent Pulverized Coal Char Combustion Kinetics
Published July 1, 2018 Publication ID: 63379 -
LII particle-size imaging with an ultra-high-speed CMOS camera
Published June 1, 2018 Publication ID: 62476 -
Turbulent flame LII particle sizing via ultra-high-speed imaging
Published June 1, 2018 Publication ID: 62478 -
Planar Soot Particle Sizing via Ultra-High-Speed LII Imaging
Published June 1, 2018 Publication ID: 62763 -
Exploring the Dark Side of Combustion: Soot Optical Properties and Coal Char Reactions
Published May 1, 2018 Publication ID: 62295 -
A NEW METHOD TO COMPUTE THE RADIANT CORRECTION OF BARE-WIRE THERMOCOUPLES
Published March 1, 2018 Publication ID: 61291 -
The Effect of Oxygen Penetration on Apparent Pulverized Coal Char Combustion Kinetics
Published March 1, 2018 Publication ID: 61393 -
The effect of oxygen penetration on apparent pulverized coal char combustion kinetics
2018 Spring Technical Meeting of the Western States Section of the Combustion Institute, WSSCI 2018. Published January 1, 2018 Publication ID: 61290 -
A NEW METHOD TO COMPUTE THE RADIANT CORRECTION OF BARE-WIRE THERMOCOUPLES
Published April 1, 2017 Publication ID: 56030 -
Validation and uncertainty quantification analysis (VUQ) of a char oxidation model
10th U.S. National Combustion Meeting. Published January 1, 2017 Publication ID: 56031 -
A new method to compute the proper radiant heat transfer correction of bare-wire thermocouple measurements
10th U.S. National Combustion Meeting. Published January 1, 2017 Publication ID: 56032 -
Kinetic modeling of the formation and growth of inorganic nano-particles during pulverized coal char combustion in O2/N2 and O2/CO2 atmospheres
Combustion and Flame. Published November 1, 2016 Publication ID: 52071 -
Highlights of the 2016 Summer Laboratory Student Intern Program at Sandia National Labs
Published September 1, 2016 Publication ID: 52279 -
The effect of oxygen enrichment on soot formation and thermal radiation in turbulent, non-premixed methane flames
Proceedings of the Combustion Institute. Published July 12, 2016 Publication ID: 45285 -
Oxyfuel Combustion: Basic Principles and Results from Small-Scale Investigations
Published July 1, 2016 Publication ID: 51390 -
The Effect of Oxygen Enrichment on Soot Formation and Thermal Radiation in Turbulent Non-Premixed Methane Flames
Published July 1, 2016 Publication ID: 51391 -
Measurements of soot concentrations soot temperatures and thermal radiation from a turbulent non-premixed pre-vaporized aviation fuel jet flame
Published July 1, 2016 Publication ID: 51392 -
High-Performance Computing Unlocks Science
Published May 1, 2016 Publication ID: 50064 -
Quantifying soot concentrations in turbulent non-premixed jet flames
2016 Spring Technical Meeting of the Western States Section of the Combustion Institute, WSSCI 2016. Published January 1, 2016 Publication ID: 48779 -
Novel metal-organic frameworks for efficient stationary sources via oxyfuel combustion
Published September 1, 2015 Publication ID: 45360 -
Efficient Light Gas Separations with MOFs via Predictive Modeling and Tuned Synthesis
Published August 1, 2015 Publication ID: 45049 -
Light Gas Separations with MOFs via
Published August 1, 2015 Publication ID: 45253 -
Effects of repetitive pulsing on multi-kHz planar laser-induced incandescence imaging in laminar and turbulent flames
Applied Optics. Published April 10, 2015 Publication ID: 42434 -
Soot Formation and its Impact on Flame RadiatioSoot Formation and its Impact on Flame Radiation during Turbulent Non-Premixed Oxygen-Enriched Combustion of Methane
Published April 1, 2015 Publication ID: 42988 -
Coal Combustion and Gasification Science
Published April 1, 2015 Publication ID: 43259 -
A sophisticated model to predict ash inhibition during combustion of pulverized char particles
Proceedings of the Combustion Institute. Published January 1, 2015 Publication ID: 31884 -
Separations with MOFs via Predictive Modeling and Tuned Synthesis
Published November 1, 2014 Publication ID: 39465 -
Efficient Light Gas Separations with MOFs via Predictive Modeling and Tuned Synthesis
Published October 1, 2014 Publication ID: 38916 -
Understanding the complexities of enhanced oxygen high temperature pulverized coal char combustion
Published October 1, 2014 Publication ID: 38929 -
Understanding the complexities of enhanced oxygen high temperature pulverized coal char combustion
Published October 1, 2014 Publication ID: 38930 -
Experimental Determination of the Kinetics of Pressurized Oxy-Fuel Char Combustion
Published October 1, 2014 Publication ID: 38983 -
EXPERIMENTAL DETERMINATION OF THE KINETICS OF PRESSURIZED OXY-FUEL CHAR COMBUSTION
Published September 1, 2014 Publication ID: 38358 -
Efficient Light Gas Separations with MOFs via Predictive Modeling and Tuned Synthesis
Published September 1, 2014 Publication ID: 38538 -
Experimental Determination of the Kinetics of Pressurized Oxy-fuel Char Combustion
Published August 1, 2014 Publication ID: 38043 -
Efficient Light Gas Separations with MOFs via Predictive Modeling and Tuned Synthesis
Published July 1, 2014 Publication ID: 37922 -
The Multifaceted Influence of CO2 on Oxy-fuel Combustion of Pulverized Coal
Published January 1, 2014 Publication ID: 36970 -
CRF Summer Undergraduate Internship and Visiting Faculty Opportunities
Published December 1, 2013 Publication ID: 31777 -
Joint Temperature-Volume Fraction Statistics of Soot in Turbulent Non-Premixed Jet Flames of Ethylene and a JP-8 Surrogate
Published December 1, 2013 Publication ID: 31885 -
Effect of torrefaction on physical properties and reactivity of high heating rate char of forest residue
Published December 1, 2013 Publication ID: 31886 -
A Sophisticated Model to Predict Ash Inhibition during Combustion of Pulverized Char Particles
Published September 1, 2013 Publication ID: 35737 -
The Influence of CO2 on Oxy-fuel Combustion of Pulverized Coal
Published August 1, 2013 Publication ID: 35291 -
Effect of CO2 Gasification Reaction on Char Particle Combustion in Oxy-fuel Conditions
Fuel. Published May 1, 2013 Publication ID: 33698 -
Experimental Considerations in Providing Benchmark Data on Pulverized Coal Ignition and Char Particle Burning Rates
Published April 1, 2013 Publication ID: 32948 -
Evaluation of Light-Off Limits for a Novel Oxy-Combustion Process for Advanced EOR
Energy&Fuels. Published April 1, 2013 Publication ID: 33143 -
The influence of CO2 on oxy-fuel combustion of pulverized coal
Published April 1, 2013 Publication ID: 33144 -
Numerical Validation of Tognotti Determination of CO2/CO Production Ratio during Char Oxidation
Combustion and Flame. Published April 1, 2013 Publication ID: 33145 -
ENG 505 Energy Technologies Systems and Applications: Coal and Biomass Combustion and Carbon Management
Published April 1, 2013 Publication ID: 33233 -
Pulverized Coal Char Combustion Rates in Different Diluent Gases: The Influence of Gas Diffusivity
Published March 1, 2013 Publication ID: 32524 -
Joint Temperature-Volume Fraction Statistics of Soot in Turbulent Non-Premixed Jet Flames
Published March 1, 2013 Publication ID: 32525 -
A mechanistic char oxidation model consistent with observed CO 2/CO production ratios
Proceedings of the Combustion Institute. Published January 11, 2013 Publication ID: 28885 -
Pulverized coal char combustion rates in different diluent gases: The influence of gas diffusivity
8th US National Combustion Meeting 2013. Published January 1, 2013 Publication ID: 33139 -
Joint temperature-volume fraction statistics of soot in turbulent non-premixed jet flames
8th US National Combustion Meeting 2013. Published January 1, 2013 Publication ID: 33140 -
Analysis of the errors associated with typical pulverized coal char combustion modeling assumptions for oxy-fuel combustion
Proposed for publication in Combustion and Flame.. Published November 1, 2012 Publication ID: 26264 -
Advanced inactive materials for improved lithium-ion battery safety
Published November 1, 2012 Publication ID: 30787 -
Coal Combustion Gasification and Beyond: Developing New Technologies for a Changing World
Proposed for publication in Combustion and Flame.. Published July 1, 2012 Publication ID: 29214 -
Coal
Published March 1, 2012 Publication ID: 27377 -
Evaluation of the Distinct Effect of CO2 Properties on the Oxy-Fuel Combustion of Pulverized Coal
Published February 1, 2012 Publication ID: 26654 -
Development of an Improved Semi-Global Intrinsic Char Oxidation Kinetics Model
Published February 1, 2012 Publication ID: 26655 -
Effect of CO2 and steam gasification reactions on the oxy-combustion of pulverized coal char
Combustion and Flame. Published February 1, 2012 Publication ID: 26656 -
Evaluation of Light-Off Limits for a Novel Oxy-Combustion Process for Advanced EOR
Published January 1, 2012 Publication ID: 25795 -
Effect of Physical and Transport Properties of CO2 on Oxy-Fuel Pulverized Coal Char Combustion
Published January 1, 2012 Publication ID: 25796 -
Predicting the CO2/CO Production Ratio during Char Oxidation: Capturing the Oxygen Dependence with Semi-Global Intrinsic Kinetics Models
Published January 1, 2012 Publication ID: 25885 -
Experimental investigations of pulverized coal char reactions with oxygen carbon dioxide and steam
Published September 1, 2011 Publication ID: 24437 -
Direct Measurement of High-Temperature CO2 Gasification Rate of Pulverized Coal Chars at 1 atm
Published September 1, 2011 Publication ID: 24438 -
Design of model-friendly turbulent non-premixed jet burners for C 2+ hydrocarbon fuels
Review of Scientific Instruments. Published July 1, 2011 Publication ID: 21902 -
On the use of single-film models to describe the oxy-fuel combustion of pulverized coal char
Journal of Applied Energy. Published July 1, 2011 Publication ID: 23696 -
Effect of CO2 and steam gasifcation reactions on the oxy-combustion of pulverized coal char
Combustion and Flame. Published July 1, 2011 Publication ID: 23697 -
Pulverized Coal Ignition Delay under Conventional and Oxy-Fuel Combustion Conditions
Published May 1, 2011 Publication ID: 22971 -
Research on Coal Combustion and Gasification Science at Sandia National Labs
Published April 1, 2011 Publication ID: 22443 -
On the use of single-film models to describe the oxy-fuel combustion of pulverized coal char
Published April 1, 2011 Publication ID: 22508 -
Pulverized Coal Stream Ignition Delay under Conventional and Oxy-Fuel Combustion Conditions
International Journal of Greenhouse Gas Control. Published February 1, 2011 Publication ID: 21534 -
Evaluation of Light-Off Limits for a Novel Oxy-Combustion Process for Advanced EOR
Published February 1, 2011 Publication ID: 21535 -
A Modified Single-Film Char Consumption Model for CFD Simulations of Oxy-Combustion of Pulverized Coal
Published February 1, 2011 Publication ID: 21543 -
Evaluation of the Combustion Rates of Lignin Residues from Cellulosic Ethanol Production
Published February 1, 2011 Publication ID: 21544 -
Pulverized coal ignition delay under conventional and oxy-fuel combustion conditions
Published January 1, 2011 Publication ID: 21252 -
Advances in Gasification for Biofuel Production
Published December 1, 2010 Publication ID: 21057 -
Effect of Particle Size on Oxy-Fuel Combustion Rates of Pulverized Coal
Published November 1, 2010 Publication ID: 20847 -
Understanding and predicting soot generation in turbulent non-premixed jet flames
Published October 1, 2010 Publication ID: 20325 -
Oxy-combustion of pulverized coal : modeling of char-combustion kinetics
Published September 1, 2010 Publication ID: 20025 -
Oxy-combustion of pulverized coal : modeling of char combustion kinetics
Published September 1, 2010 Publication ID: 20051 -
Thermo-chemical Conversion of Biomass and Coal: Research Efforts at Sandia National Labs
Published September 1, 2010 Publication ID: 20052 -
Development of efficient, integrated cellulosic biorefineries : LDRD final report
Published September 1, 2010 Publication ID: 20304 -
Combustion properties of biomass lignin residues
Published July 1, 2010 Publication ID: 19141 -
Effect of CO2 gasification reaction on oxycombustion of pulverized coal char
Published July 1, 2010 Publication ID: 19205 -
Fundamental investigation of NOx formation during oxy-coal combustion of pulverized coal
Published July 1, 2010 Publication ID: 19210 -
Effect of gasification reactions on oxy-fuel combustion of pulverized coal char
Published May 1, 2010 Publication ID: 18468 -
Effects of Particle Size on Oxy-Fuel Combustion of Pulverized Coal
Published February 1, 2010 Publication ID: 17305 -
Evaluation of effect of particle size on oxy-fuel combustion of pulverized coal
26th Annual International Pittsburgh Coal Conference 2009, PCC 2009. Published December 1, 2009 Publication ID: 16596 -
CRF News November/December
Published January 1, 2009 Publication ID: 15700 -
Advances in the Thermochemical Conversion of Coal and Biomass to Energy and Fuels
Published November 1, 2008 Publication ID: 15234 -
Measurements of the velocity field in laminar ethylene inverse jet diffusion flames
Proposed for publication in Combustion and Flame.. Published October 1, 2008 Publication ID: 15042 -
Evaluation of the irising effect of a slow-gating ICCD on laser-induced incandescence measurements of soot
Proposed for publication in Review of Scientific Instruments.. Published October 1, 2008 Publication ID: 15151 -
Effect of O2 and High CO2 Concentrations on PC Char Burning Rates during Oxy-Fuel Combustion
Published May 1, 2008 Publication ID: 13563 -
Effect of syngas composition and CO2-diluted oxygen on performance of a premixed swirl-stabilized combustor
Combustion Science and Technology. Published January 1, 2008 Publication ID: 8633 -
Soot formation and radiation in a laminar jet flame of prevaporized JP-8 surrogate burning in air
Published October 1, 2007 Publication ID: 11616 -
Coal and Clean Coal
Published September 1, 2007 Publication ID: 11365 -
NOx formation in laboratory investigations of oxy-coal combustion
Published September 1, 2007 Publication ID: 11409 -
IMPLEMENTATION OF OPTICAL TECHNIQUES AT LARGE SCALE AT SANDIA NATIONAL LABORATORIES
Published July 1, 2007 Publication ID: 10520 -
Soot: Giver and Taker of Light
American Scientist. Published March 1, 2007 Publication ID: 9208 -
Ignition and devolatilization of pulverized bituminous coal particles during oxygen/carbon dioxide coal combustion
Proceedings of the Combustion Institute. Published January 1, 2007 Publication ID: 7690 -
Simultaneous correction of flat-field and non-linearity response of intensified charge-coupled devices
Review of Scientific Instruments. Published January 1, 2007 Publication ID: 10622 -
Effect of furnace operating conditions on alkali vaporization, batch carryover, and the formation of so2and NO in an oxy-fuel fired container glass furnace
Glass Technology: European Journal of Glass Science and Technology Part A. Published December 1, 2006 Publication ID: 6663 -
Effect of syngas composition on emissions from an idealized gas turbine combustor
23rd Annual International Pittsburgh Coal Conference, PCC – Coal-Energy, Environment and Sustainable Development. Published December 1, 2006 Publication ID: 7571 -
Effect of Syngas Composition on Emissions from a Swirl Burner
Published August 1, 2006 Publication ID: 7688 -
Effect of Reactant Penetration on Inhibition of Coal Char Gasification
Published August 1, 2006 Publication ID: 7689 -
Structure of laminar inverse diffusion flames
Proposed for publication in Combustion and Flame.. Published July 1, 2006 Publication ID: 7649 -
Flame height measurement of laminar inverse diffusion flames
Proposed for publication in Combustion and Flame.. Published September 1, 2005 Publication ID: 6065 -
Effect of O2/CO2-firing on coal particle ignition
Published July 1, 2005 Publication ID: 5767 -
Interference of atomic alkali species with laser-induced breakdown spectroscopy of aerosols in high-temperature applications
Proposed for publication in Applied Optics.. Published June 1, 2005 Publication ID: 5583 -
Characteristics and sources of intermediate size particles in recovery boilers : final project report
Published February 1, 2005 Publication ID: 4334 -
Evaluation of alkali concentration in conditions relevant to oxygen/natural gas glass furnaces by laser-induced breakdown spectroscopy
Published January 1, 2005 Publication ID: 4404 -
Effect of HBr addition on NO production during char oxidation at pulverized coal combustion conditions
Published January 1, 2005 Publication ID: 4405 -
Measurement of the dimensionless extinction coefficient of soot within laminar diffusion flames
Published January 1, 2005 Publication ID: 4406 -
Effect of temperature and CO2 concentration on laser-induced breakdown spectroscopy measurements of alkali fume
Proposed for publication in Spectrocheimica Acta, Part B – Atomic Spectroscopy.. Published November 1, 2004 Publication ID: 4157 -
Soot formation, transport, and radiation in unsteady diffusion flames : LDRD final report
Published October 1, 2004 Publication ID: 3764 -
Effect of varied air flow on flame structure of laminar inverse diffusion flames
International Symposium on Combustion, Abstracts of Works-in-Progress Posters. Published January 1, 2004 Publication ID: 2850 -
LDRD report: Smoke effects on electrical equipment
Published March 1, 2000 Publication ID: 299