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Derek Johnson, PhD, PE
Associate Professor, Mechanical and Aerospace Engineering
College of Engineering and Mineral Resources
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Publications

Full Curriculum Vitae (8/19)

Peer Reviewed Journal Publications

Note: students denoted with *.

  1. Johnson, D., Heltzel, R.*, and Oliver, D.*, “Temporal Variations in Methane Emissions from an Unconventional Well Site,” ACS Omega, 2019. DOI: 10.1021/acsomega.8b03246.

  2. Darzi, M.*, Johnson, D., Ulishney, C.* and Oliver, D.*, “Gaseous Fuels Variation Effects on First and Second Law Analyses of a Small Direct Injection Engine for Micro-CHP Systems,” Energy Conversion and Management, 2019. DOI: 10.1016/j.enconman.2019.01.045.
  3. Zamani, N.*, Clark, N., Musho, T., Darzi, M.*, Johnson, D. and Famouri, P. “An Optimization Method for Flexural Bearing Design for High-stroke High-frequency Applications,” Cryogenics, 2018. DOI: 10.1016/j.cryogenics.2018.09.008.
  4. Darzi, M.*, Johnson, D., Ulishney, C.* and Clark. N., “Low Pressure Direct Injection Strategies Effect on A Small SI Natural Gas Two Stroke Engine’s Energy Distribution and Emissions,” Applied Energy, 2018. DOI: 10.1016/j.apenergy.2018.09.091.
  5. Johnson, D., Heltzel, R.*, Nix, A., Clark, N. and Darzi, M.*, “In-Use Efficiency of Oxidation and Threeway Catalysts Used in High-horsepower Dual Fuel and Dedicated Natural Gas Engines,” SAE Int. J. Engines, 2018. DOI: 10.4271/03-11-03-0026.
  6. Johnson, D., Heltzel, R.*, Nix, A., Darzi, M.* and Oliver, D.*, “Estimated Emissions from the Prime-movers of Unconventional Natural Gas Well Development Using Recently Collected In-use Data in the United States,” Environmental Science and Technology, 2018. DOI: 10.1021/acs.est.7b06694.
  7. Johnson, D., Heltzel, R.*, Nix, A., Clark, N. and Darzi, M.*, “Greenhouse Gas Emissions and Fuel Efficiency of In-use High Horsepower Diesel, Dual Fuel and Natural Gas Engines for Unconventional Well Development,” Applied Energy, 2017. DOI: 10.1016/j.apenergy.2017.08.234.
  8. Peng, Y., Nix, A., Li, H., Johnson, D. and Heltzel, R.*, “Derivation of A Representative Engine Duty Cycle from On-Road Heavy Duty Vehicle Driving Data,” Journal of Transportation Technologies, 2017. DOI: 10.4236/jtts.2017.74025.
  9. Clark, N., Johnson, D., McKain, D., Wayne, S., Li, H., Covington, A.*, Mongold, R.*, Hailer, T.*, Sandoval, C.* and Rudek, J., “Future Methane Emissions from the Heavy-duty Natural Gas Transportation Sector for Stasis, High, Medium and Low Scenarios in 2035,” Journal of the Air and Waste Management Association, 2017. DOI: 10.1080/10962247.2017.1368737.
  10. Johnson, D., Heltzel, R.*, Nix, A., Clark, N., and Darzi, M.*, “Regulated Gaseous Emissions from In-use High-horsepower Drilling and Hydraulic Fracturing Engines,” Journal of Pollution Effects and Control, 2017. DOI: 10.4176/2375-4397.1000187.
  11. Clark, N., McKain, D., Johnson, D., Wayne, S., Li, H., Akkerman, V., Sandoval, C.*, Covington, A.*, Mongold, R.*, Hailer, T.* and Ugarte, O.*, “Pump-to-Wheels Methane Emissions from the Heavy-duty Transportation Sector,” Environmental Science and Technology, 2016. DOI: 10.1021/acs.est.5b06059.
  12. Johnson, D., Covington, A.* and Clark, N., “Methane to Ethane Ratios of Emissions at Natural Gas Compressor Stations and Storage Facilities,” JJ Petro Natu Gas. 2016, 1 (1): 006. Open-Access. http://jacobspublishers.com/images/Petrol/J_J_Petro_Natu_gas_1_1_007.pdf.
  13. Johnson, D., Heltzel, R.*, Nix, A. and Barrow, R.*, “Development of Engine Activity Cycles for the Prime Movers of Unconventional, Natural Gas Well Development,” Journal of the Air and Waste Management Association, 2016. DOI: 10.1080/10962247.2016.1245220.
  14. Johnson, D. and Heltzel, R.*, “Methane Emissions Measurements of Natural Gas Components Using a Utility Terrain Vehicle and Portable Methane Quantification System,” Atmospheric Environment, DOI: 10.1016/j.atmosenv.2016.08.065.
  15. Johnson, D., Covington, A.* and Clark, N., “Design and Use of Full Flow Sampling System (FFS) for the Quantification of Methane Emissions,” Journal of Visualized Experiments, 2015. DOI: 10.3791/54179.
  16. Nathan, B., Golston, L., O’Brien, A., Ross, K., Harrison, W., Tao, L., Lary, D., Johnson, D., Covington, A.*, Clark, N. and Zondlo, M., “Near-field Characterization of Methane Emission Variability from a Compressor Station Using a Model Aircraft,” Environmental Science and Technology, 2015. DOI: 10.1021/acs.est.5b00705.
  17. Johnson, D., Covington, A.* and Clark, N., “Methane Emissions from Leak and Loss Audits of Natural Gas Compressor Stations and Storage Facilities,” Environmental Science and Technology, 2015. DOI: 10.1021/es506163m.
  18. Johnson, D., Covington, A.* and Clark, N., “Environmental and Economic Assessment of Leak and Loss Audits at Natural Gas Compressor and Storage Facilities,” Energy Technology, 2014. DOI: 10.1002/ente.201402086.
  19. Johnson, D., Heltzel, R.* and Nix, A., “Trends in Unconventional Well Development – Methane Emissions Associated with the Use of Dual Fuel and Dedicated Natural Gas Engines,” Energy Technology, 2014. DOI: 10.1002/ente.201402088.
  20. Johnson, D.*, Ayre, L.*, Clark, N., Balon, T. and Moynihan, P., “Diesel Exhaust After Treatment with Scrubber Process: NOx Destruction,” SAE Int. J. Engines, SAE Paper No. 2011-01-2440 , 2011. DOI: 10.4271/2011-01-2440.
  21. Johnson, D .*, Bedick, C.*, Clark, N. and McKain, D., “Design and Testing of an Independently Controlled Urea SCR Retrofit System for the Reduction of NOx Emissions from Marine Diesels,” Environmental Science and Technology, 2009. DOI: 10.1021/es900269p.

Peer Reviewed Conference Proceedings

  1. Zamani, N.*, Johnson, D., Darzi, M.*, Clark, N. and Famouri, P, “Semi-empirical Investigation of Engine Speed Effects on Trapping/Scavenging Efficiencies of a Natural Gas Two-stroke Free Piston Linear Engine Alternator,” 2019 SAE World Congress Experience , SAE 2019-01-0199, Under Review January 2019.
  2. Zamani, N.*, Clark, N., Subramanian, J.*, Heiskell, G.*, Johnson, D. , Mahmudzadeh, F.*, Musho, T., and Famouri, P., “Quantification of Windage and Vibrational Losses in Flexure Springs of a One kW Two-Stoke Free Piston Linear Engine Alternator,” 2019 SAE World Congress Experience , SAE 2019-01-0816, 2019. DOI: 10.4271/2019-01-0816. 
  3. Darzi, M.*, Johnson, D. , Bade, M.*, and Famouri, P., “Impacts of Gaseous Fuel Quality on Combustion and Regulated Engines for a Small, Low-Pressure Direct Injected Natural Gas Engine,” 2019 SAE World Congress Experience , SAE 2019-01-0560, 2019. DOI: 10.4271/2019-01-0560.

  4. Bade, M.*, Clark, N., Famouri, P., Guggilapu, P.*, Darzi, M.*, and Johnson, D. , “Sensitivity Analysis and Control Methodology for Linear Engine Alternator,” 2019 SAE World Congress Experience , SAE 2019-01-0230, 2019. DOI: 10.4271/2019-01-0230.

  5. Darzi, M.*, Johnson, D., Ulishney, C.*, Zamani, N.*, Bade, R.*, Thompson, G., Clark, N. and Famouri, P., “Quantification of Energy Pathways and Gas Exchange of a Small Port Injection SI Two-stroke Natural Gas Engine Operating on Different Exhaust Configurations,” 2018 SAE World Congress Experience, SAE 2018-01-1278, 2018. DOI: 10.4271/2018-01-1278.
  6. Darzi, M.*, Johnson, D., Bade, M.*, Ulishney, C.*, Zamani, N.*, Clark, N., Thompson, G., and Famouri, P., “Continuously Varying Exhaust Outlet Diameter to Improve Efficiency and Emissions of a Small SI Natural Gas Two-Stroke Engine by Internal EGR,” 2018 SAE World Congress Experience, SAE 2018-01-0985, 2018. DOI: 10.4271/2018-01-0895. 
  7. Johnson, D., Darzi, M.*, Zamani, N.*, Ulishney, C.* and Bade, M.*, “Methods to Improve Combustion Stability, Efficiency and Power Density of a Small, Port-injected, Spark-ignited, Two-stroke Natural Gas Engine,” Proceedings of the ASME Internal Combustion Engine Conference, ICEF2017-3557, 2017. DOI: 10.1115/ICEF2017-3557.
  8. Darzi, M.*, Johnson, D., Zamani, N.*, Ulishney, C.* and Bade, M.*, “Baseline Evaluation of Ignition Timing and Compression Ratio Configurations on Efficiency and Combustion Stability of a Small-bore, Two-stroke, Natural Gas Engine,” Proceedings of the ASME International Mechanical Engineering Congress and Exposition , IMECE2017-70078, 2017. DOI: 10.1115/IMECE2017-70078.  
  9. Johnson, D., Besch, M., Heltzel, R.* and Jammalamadaka, S.*, “Effects of Fuel Quality on Gaseous Emissions from an 8.9L Spark-ignited Natural Gas Engine Operated over Prime-mover Cycles for Unconventional Well Development,” Proceedings of the ASME Internal Combustion Engine Conference, ICEF2017-3556, 2017. DOI: 10.1115/ICEF2017-3556.
  10. Johnson, D., Besch, M., Fowler, N.*, Heltzel, R.* and Covington, A.*, “Addition of Exhaust Gas Recirculation onto a Large-bore, Two-stroke, Natural Gas Engine, and its Effects on Fuel Consumption, Emissions and Combustion,” Proceedings of the ASME Internal Combustion Engine Conference, ICEF2016-9457, 2016. DOI: 10.115/ICEF2016-9457.
  11. Johnson, D., Besch, M., Fowler, N.*, Heltzel, R.* and Covington, A.*, “Evaluation of Spark Plug and Timing Configurations on the Fuel Consumption, Combustion Stability and Emissions of a Large-bore, Two-stroke, Natural Gas Engine,” Proceedings of the ASME Internal Combustion Engine Conferenc, ICEF2016-9454, 2016. DOI: 10.115/ICEF2016-9454.
  12. Besch, M., Covington, A.*, Johnson, D., Fowler, N.* and Heltzel, R.*, "Effects of EGR Addition onto Combustion Stability and Alternator Performance Variability of a Small, Single-cylinder Diesel Generator," SAE Technical Paper 2016-32-0063, 2016. DOI: 10.4271/2016-32-0063.
  13. Johnson, D. and Covington, A.*, “Potential Reduction of Fugitive Methane Emissions at Compressor Stations and Storage Facilities Powered by Natural Gas Engines,” IMECE2014-38582, Proceedings of the ASME International Mechanical Engineering Congress and Exposition, 2014. DOI: 10.1115/IMECE2014-38582.
  14. Johnson, D. and Covington, A.*, “Methane Leak and Loss Audits of Natural Gas-Fueled Engine and Compressor Units,” ICEF2014-5626, Proceedings of the ASME Internal Combustion Engine Conference, 2014. DOI: 10.1115/ICEF2014-5626.
  15. Ayre, L.*, Johnson, D.*, Clark, N., England, J., Atkinson, R., McKain, D., Ralston, B., Balon, T. and Moynihan, P., “Novel NOx Emission Reduction Technology for Diesel Marine Engines,” Proceedings of the ASME Internal Combustion Engine Conference, ICEF2011-60182, 2011. DOI: 10.1115/ICEF2011-60182.
  16. Bedick, C.*, Clark, N., Johnson, D.*, Balon, T. and Moynihan, P., “Demonstration and Evaluation of a Retrofit Urea-SCR After-Treatment System for NOx Reduction in Marine Diesels,” Proceedings of IMarEST-Part A-Journal of Marine Engineering and Technology, 2011. DOI: 10.1080/20464177.2011.11020239.