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Darrell Herling

Darrell Herling

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352

PNNL Patents

PNNL Publications


  • Szanyi J, AM Karim, LR Pederson, JH Kwak, D Mei, DN Tran, DR Herling, GG Muntean, CHF Peden, K Howden, G Qi, and W Li. 2014. "Investigation of Mixed Oxide Catalysts for NO Oxidation." Chapter 3 in FY 2014 Progress Report for Advanced Combustion Engine Research and Development, vol. DOE/EE-1156, ed. G Singh, pp. III-25 - III-29.  US Department of Energy, Energy Efficiency and Renewable Energy, Vehicle Technologies Office, Washington, DC. 


  • Devarakonda MN, DR Herling, DH Kim, JH Kwak, CHF Peden, ML Stewart, A Strzelec, J Szanyi, DN Tran, and JH Lee. 2012. "CLEERS Aftertreatment Modeling and Analysis." Chapter II.B.1 in FY 2011 Progress Report for Advanced Combustion Engine Research and Development: Energy Efficiency and Renewable Energy Vehicle Technologies Program, vol. DOE-ACE-2011AR, ed. G Singh, pp. 176-181.  US Department of Energy, Washington DC. 


  • Devarakonda MN, RG Tonkyn, DN Tran, JH Lee, and DR Herling. 2011. "Modeling Species Inhibition of NO Oxidation in Urea-SCR Catalysts for Diesel Engine NOx Control." Journal of Engineering for Gas Turbines and Power. 133(9):Article No. 092805. 


  • Devarakonda MN, JD Holladay, KP Brooks, SD Rassat, and DR Herling. 2010. "Dynamic Modeling and Simulation Based Analysis of an Ammonia Borane (AB) Reactor System for Hydrogen Storage." ECS Transactions 33(1):1959 - 1972.  doi:10.1149/1.3484687
  • Devarakonda MN, RG Tonkyn, and DR Herling. 2010. "Hydrocarbon Effect on a Fe-zeolite Urea-SCR Catalyst: An Experimental and Modeling Study." In Diesel Exhaust Emission Control, SP-2287: SAE 2010 World Congress & Exhibition, April, 2010, Detroit, Michigan, pp. Paper No.: 2010-01-1171.  SAE International, Warrendale, PA.  doi:10.4271/2010-01-1171
  • Devarakonda MN, RG Tonkyn, DN Tran, JH Lee, and DR Herling. 2010. "MODELING COMPETITIVE ADSORPTION IN UREA-SCR CATALYSTS FOR EFFECTIVE LOW TEMPERATURE NOX CONTROL." In Proceedings of ASME 2010 International Mechanical Engineering Congress and Exposition (IMECE 2010), pp. Paper No. IMECE 2010-39977.  ASME, New York, NY. 
  • Devarakonda MN, RG Tonkyn, DN Tran, JH Lee, and DR Herling. 2010. "Modeling Species Inhibition of NO oxidation in Urea-SCR Catalysts for Diesel Engine NOx Control." In Proceedings of the ASME 2010 Internal Combustion Engine Division Fall Technical Conference, pp. Paper No. ICEF2010-35054.  American Society of Mechanical Engineers, New York, NY. 
  • Brooks KP, MN Devarakonda, SD Rassat, DA King, and DR Herling. 2010. "SYSTEMS MODELING OF AMMONIA BORANE BEAD REACTOR FOR OFF-BOARD REGENERABLE HYDROGEN STORAGE IN PEM FUEL CELL APPLICATIONS." In Proceedings of the ASME 2010 Eighth International Fuel Cell Science, Engineering and Technology Conference (FuelCell2010), vol. 1, pp. 729-734.  American Society of Mechanical Engineers, New York, NY. 


  • Devarakonda MN, DH Kim, JH Kwak, JH Lee, CHF Peden, ML Stewart, J Szanyi, RG Tonkyn, DN Tran, A Zelenyuk, and DR Herling. 2009. "CLEERS Aftertreatment Modeling and Analysis." Chapter II.B.1 in FY 2009 Progress Report for Advanced Combustion Engine Research and Development, pp. 155-163.  Energy Efficiency and Renewable Energy, Washington, D.C.. 
  • Rohatgi A, DR Herling, and EA Nyberg. 2009. "CHARACTERIZATION AND FORMABILITY OF CONTINUOUS-CAST AZ31B MAGNESIUM ALLOY SHEETS." In Magnesium Technology 2010, ed. SR Agnew, NR Neelameggham, EA Nyberg and WH Sillekens, pp. 573-578.  TMS , Warrendale, PA. 
  • Rappe KG, DR Herling, JL Male, L Li, Y Su, and JD Holladay. 2009. Low-Temperature Oxidation Catalyst Development Supporting Homogeneous Charge Compression Ignition Development: Final ReportPNNL-18883, Pacific Northwest National Laboratory, Richland, WA. 
  • Yang J, M Stewart, GD Maupin, DR Herling, and A Zelenyuk. 2009. "Single Wall Diesel Particulate Filter (DPF) Filtration Efficiency Studies Using Laboratory Generated Particles." Chemical Engineering Science 64(8):1625-1634. 


  • Ozensoy E, DR Herling, and J Szanyi. 2008. "NOx Reduction on a Transition Metal-free ?-Al2O3 Catalyst Using Dimethylether (DME)." Catalysis Today 136(1-2):46-54. 


  • Hong S, and DR Herling. 2007. "Aluminum Foam-Phase Change Material Composites as Heat Exchangers." In SAE 2007 World Congress & Exhibition, vol. SP-2105, pp. 2007-01-0419.  Society of Automotive Engineers, Warrendale, PA. 
  • Hong S, and DR Herling. 2007. "EFFECTS OF SURFACE AREA DENSITY OF ALUMINUM FOAMS ON THERMAL CONDUCTIVITY OF ALUMINUM FOAM-PHASE CHANGE MATERIAL COMPOSITES." Advanced Engineering Materials 9(7):554-557.  doi:10.1002/adem.200700023
  • Jana , RS Mishra, HN Chou, and DR Herling. 2007. "FRICTION STIR MICROSTRUCTURAL MODIFICATION OF INVESTMENT CAST F357." In Friction Stir Welding and Processing IV, pp. 439-448.  TMS , Warrendale, PA. 
  • Mishra RS, S Webb, TA Freeney, YL Chen, X Gayden, GJ Grant, and DR Herling. 2007. "FRICTION STIR SPOT WELDING OF 6016 ALUMINUM ALLOY." In Friction Stir Welding and Processing IV, pp. 341-348.  TMS , Warrendale, PA. 


  • Grant GJ, DR Herling, WJ Arbegast, CD Allen, and CM Degen. 2006. "Superplastic Forming of Aluminum Multisheet Structures Fabricated Using Friction Stir Welding and Refill Friction Stir Spot Welding." In 6th International Symposium on Friction Stir Welding, October 10-13, 2006 Saint-Sauveur, Canada, vol. 52, no. 4, TWI Limited, Cambridge, United Kingdom. 
  • Hong S, and DR Herling. 2006. "Open-Cell Aluminum Foams Filled With Phase Change Materials as Compact Heat Sinks." Scripta Materialia 55(10):887-890. 


  • Howard SM, BK Jasthi, WJ Arbegast, GJ Grant, SK Koduri, DR Herling, and DS Gelles. 2005. "Friction Stir Welding Of Ma957 Oxide Dispersion Strengthened Ferritic Steel." In Fusion Materials Semi-Annual Report for the period ending December 31, 2004, DOE/ER-0313/37 , pp. 55-60.  Oak Ridge National Laboratory, Oak Ridge, TN. 


  • Herling DR, and W Hunt. 2004. "Low Cost Cast Aluminum Metal Matrix Composites Have Arrived." In Affordable Metal Matrix Composites for High Performance Applications II; Chicago, 9-12 November 2003., pp. 13-23  Minerals, Metals & Materials Society, Warrendale, PA. 
  • Muntean GG, DR Rector, DR Herling, MA Khaleel, and DL Lessor. 2004. "Lattice-Boltzmann Diesel Particulate Filter Sub-Grid Modeling - A Progress Report." In Diesel Emission Measurement and Modeling : SAE 2003 World Congress & Exhibition, March 2003, Detroit, MI, USA., vol. SP-1755 , pp. 2003-01-0835 .  SAE International, Warrendale, PA. 
  • Hunt W, and DR Herling. 2004. "Aluminum Metal Matrix Composites." Advanced Materials & Processes 162(2):39-44. 
  • Hunt W, and DR Herling. 2004. "Metal Matrix Composites." Advanced Materials & Processes 162(2):39-42. 
  • Sun X, EV Stephens, and DR Herling. 2004. "Static and Fatigue Strength Evaluations for Bolted Composite/Steel Joints for Heavy Vehicle Chassis Components." In 4th Annual SPE Automotive Composites Conference, Commercial Transport Session, Paper No. 3, pp. 1-14.  Society of Plastics Engineers, Brookfield, CT. 


  • Herling DR, and L Klett. 2003. "Joining Composite Chassis Components on Heavy Trucks." In 3rd Annual SPE Automotive Composites Conference, September 9-10, 2003, Troy, Michigan, p. 4 pages.  Society of Plastics Engineers, Newton, CT. 


  • Grant GJ, DE Mccready, DR Herling, and MT Smith. 2001. "Interfacial Reactions at Elevated Temperatures in New Low-Cost AL/SiC Metal Matrix Composite." In Affordable metal-matrix composites for high performance applications, ed. Ab Pandey, KL Kendig, TJ Watson, pp. 233-250.  The minerals, metals and materials society, Warrendale, PA. 


  • Herling DR, MR Smith, and MD Hemingway. 2000. "Cylindrical Corona Reactors for a Plasma Assisted Nitrogen Oxide Emission Reduction Device." In Advanced Propulsion & Emission Technology: Proceedings of the Global Powertrain Congress, vol. 15, ed. D Roessler, pp. 91-102.  Global Powertrain Congress, Ltd., Warren, MI. 
  • Herling DR, MR Smith, MD Hemingway, D Goulette, and TW Silvis. 2000. "Evaluation of Corona Reactors of Several Geometries for a Plasma Assisted Nitrogen Oxide Emission Reduction Device." In SAE International Fall Fuels & Lubricants Meeting & Exposition, pp. 2000-01-2899.  Society of Automobile Engineers, Warrendale, PA. 
  • Herling DR, MR Smith, S Baskaran, and J Kupe. 2000. "Application of Non-Thermal Plasma Assisted Catalyst Technology for Diesel Engine Emission Reduction." In Future engines. Future Transportation Technology Conference, Costa Mesa, California, August 21-23, 2000, no. SAE/SP-1559, pp. 61-68.  Society of Automtove Engineers, Warrendale , PA. 
  • Lessor DL, DR Herling, AK Sharma, and C Speck. 2000. "Development of a Non-Thermal Plasma Reactor Electrical Model for Optimum NOx Removal Performance." In International Fall Fuels and Lubricants Meeting and Exposition, pp. 7-18.  Society of Automotive Engineers, Warrendale, PA. 
  • Herling DR, and MT Smith. 2000. "SUPERPLASTIC MICROSTRUCTURE OF MODIFIED AA-5083 ALUMINUM ALLOY PROCESSED BY EQUAL CHANNEL ANGULAR EXTRUSION." In Ultrafine Grained Materials: Proceedings of a Symposium held during the 2000 TMS Annual Meeting, ed. RS Mishra, pp. 411-420.  TMS , Warrendale, PA. 

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