Stephen Garner
Stephen W. Garner, Ph.D., P.E., CFEI
Senior Engineer
Thermal Sciences
  • Warrenville

Dr. Garner applies his expertise in mechanical engineering to combustion chemical kinetics, premixed/partial premixed flames, liquid fuel injectors and nozzles, lean burn fuel/air premixers, combustion acoustics, combustion dynamics, and liquid fuel gas turbine propulsion engines to accident investigation and prevention. In addition, Dr. Garner has expertise in 1D and 2D gas chromatography mass spectrometry, turbo molecular high vacuum pumps, rotary vane pumps, high pressure piston gas pumps, high pressure/vacuum systems, compressible flow gas dynamics, and fundamental combustion principles. He applies these skills during product and system assessments, engineering analysis, and incident investigations.

Since joining Exponent, Dr. Garner has assisted in the investigation and analysis of incidents involving fires, explosions, and failures of combustion and mechanical systems. These investigations have involved petroleum products, combustible dusts, consumer products, residential appliances, and turbine equipment in combined cycle power generation facilities. Dr. Garner also consulted on aspects of OSHA Process Safety Management (PSM) compliance.


Prior to joining Exponent, Dr. Garner focused his expertise on developing next generation aviation propulsion systems, mainly partial premixed lean burning combustors for gas turbine engines (jet engines) at General Electric. During his time at GE-Aviation he routinely designed and tested jet engine combustors and combustor components as well as performed root cause analyses on failed hardware and tests.

In addition to his gas turbine expertise, Dr. Garner’s doctoral thesis focused on fuel rich bio- diesel pollutant emission combustion kinetics, specifically NOx production pathways and precursors. His doctoral work was comprised of both theoretical and experimental studies employing a very high pressure and high vacuum experimental shock tube apparatus. Dr. Garner also applies his knowledge of mechanical engineering to the failure analysis and investigation of incidents involving turbomachinery, fires, explosions, and a variety of combustion devices.

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Mechanical Engineering, University of Illinois, Chicago, 2011
  • B.S., Mechanical Engineering, University of Illinois, Chicago, 2006
  • Art Adamson Award Nominee for fuel nozzle design and combustor testing (GE), 2012

LICENSES & CERTIFICATIONS

Licensed Professional Engineer, Illinois, # 062066403

Certified Fire and Explosion Investigator (CFEI) in accordance with the National Association of Fire Investigators (NAFI) National Certification Board, #18573-10959

Alternate Member: Technical Committee on Internal Combustion Engines, NFPA 37 Standard for the Installation and Use of Stationary Combustion Engines and Gas Turbines, National Fire Protection Association International, effective April 2015

LANGUAGES

  • French

Publications

Garner S, Ibrahim Z. Gas Turbine Common Issues, Failure Investigations, Root Cause Analyses, and Preventative Actions. 016 ASME Power & Energy Conference, June 26-30, 2016, Charlotte, North Carolina, USA; 59352.

Fecke M, Garner S, Cox B. Review of Global Regulations for Anhydrous Ammonia Production, Use, and Storage. Institution of Chemical Engineers, Proceedings of Hazards 26, 2016.

Cox BL, Garner SW, Carpenter AR, Fecke M. Hazards Inherent to Control Systems: Case Studies and Lessons Learned. American Institute of Chemical Engineers, 2016 Spring National Meeting, 12th Global Congress on Process Safety, Houston, TX, April 10-14, 2016.

Ibarretta A, Marr K, Garner S, O’Hern S, Myers T. On the Use of Laminar Burning Velocities in Process Safety. American Institute of Chemical Engineers, 2015 Spring National Meeting, 11th Global Congress on Process Safety, Austin, TX, April 27–April 29, 2015.

Fu X, Garner S, Aggarwal S, Brezinsky K. Numerical study of NOx emissions from n-Heptane and 1-Heptene counterflow flames. Energy Fuels 2012; 26:879–888.

Garner S, Dubois T, Chaumeix N, Dagaut P, Brezinsky K. Biologically derived diesel fuel and NO formation: Part 2, model development and extended validation. Combustion and Flame 2011; 158:2302–2313.

Garner S, Brezinsky K. Biologically derived diesel fuel and NO formation: An experimental and chemical kinetic study, Part 1. Combustion and Flame 2011; 158:2289–2301.

Garner S, Sivaramakrishnan R, Brezinsky K. The high-pressure pyrolysis of saturated and unsaturated C7 hydrocarbons. Proceedings, Combustion Institute 2009; 32:461–467.

Garner S, Brezinsky K. Possible chemical sources of increased NOx from biodiesel. Poster presentation, 33rd International Symposium on Combustion, Beijing, China, 2010.

Garner S. Combustion of components of biodiesel surrogates in a high pressure shock tube and jet stirred reactor. University of Illinois at Chicago, February 2010.

Garner S, Sivaramakrishnan R, Brezinsky K. High pressure pyrolysis of saturated and unsaturated C7 hydrocarbons. Poster presentation, 32rd International Symposium on Combustion, Montreal, Canada, 2008.

Garner S. Combustion of biodiesel surrogates in a high pressure shock tube. Centre National de la Recherche Scientifique, Institut de Combustion Aerothermique Reactivite et Environnement, Orleans, France, May 2008.

Garner S. High temperature and high pressure pyrolysis and oxidation of saturated and unsaturated C7 hydrocarbons. Centre National de la Recherche Scientifique, Institut de Combustion Aerothermique Reactivite et Environnement, Orleans, France, Aug. 2007.

Prior Experience

Engineer/Technologist, GE-Aviation, 2011–2013

Research/Teaching Assistant, University of Illinois at Chicago, 2006–2011

Visiting Researcher, Centre National de la Recherche Scientifique, Orleans, France, 2007 and 2008

Professional Affiliations

NFPA

NAFI

ASME

AIChE

News & Events

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Mechanical Engineering, University of Illinois, Chicago, 2011
  • B.S., Mechanical Engineering, University of Illinois, Chicago, 2006
  • Art Adamson Award Nominee for fuel nozzle design and combustor testing (GE), 2012

LICENSES & CERTIFICATIONS

Licensed Professional Engineer, Illinois, # 062066403

Certified Fire and Explosion Investigator (CFEI) in accordance with the National Association of Fire Investigators (NAFI) National Certification Board, #18573-10959

Alternate Member: Technical Committee on Internal Combustion Engines, NFPA 37 Standard for the Installation and Use of Stationary Combustion Engines and Gas Turbines, National Fire Protection Association International, effective April 2015

LANGUAGES

  • French