| Greenhouse gas emissions and fuel efficiency of in-use high horsepower diesel, dual fuel, and natural gas engines for unconventional well development DR Johnson, R Heltzel, AC Nix, N Clark, M Darzi Applied energy 206, 739-750, 2017 | 80 | 2017 |
| Energetic and exergetic analyses of a variable compression ratio spark ignition gas engine A Javaheri, V Esfahanian, A Salavati-Zadeh, M Darzi Energy conversion and management 88, 739-748, 2014 | 45 | 2014 |
| Low pressure direct injection strategies effect on a small SI natural gas two-stroke engine’s energy distribution and emissions M Darzi, D Johnson, C Ulishney, N Clark Applied energy 230, 1585-1602, 2018 | 32 | 2018 |
| Methods to improve combustion stability, efficiency, and power density of a small, port-injected, spark-ignited, two-stroke natural gas engine D Johnson, M Darzi, C Ulishney, M Bade, N Zamani Internal Combustion Engine Division Fall Technical Conference 58325, V002T07A008, 2017 | 26 | 2017 |
| An optimization method for flexural bearing design for high-stroke high-frequency applications NZ Meymian, NN Clark, T Musho, M Darzi, D Johnson, P Famouri Cryogenics 95, 82-94, 2018 | 21 | 2018 |
| Baseline evaluation of ignition timing and compression ratio configurations on efficiency and combustion stability of a small-bore, two-stroke, natural gas engine M Darzi, D Johnson, C Ulishney, M Bade, N Zamani ASME International Mechanical Engineering Congress and Exposition 58417 …, 2017 | 18 | 2017 |
| Regulated gaseous emissions from in-use high horsepower drilling and hydraulic fracturing engines D Johnson, R Heltzel, A Nix, N Clark, M Darzi Journal of Pollution Effects & Control 5, 187, 2017 | 17 | 2017 |
| Gaseous fuels variation effects on first and second law analyses of a small direct injection engine for micro-CHP systems M Darzi, D Johnson, C Ulishney, D Oliver Energy conversion and management 184, 609-625, 2019 | 15 | 2019 |
| Investigation of natural gas composition effects on knock phenomenon in SI gas engines using detailed chemistry A Javaheri, V Esfahanian, A Salavati-Zadeh, M Darzi, SM Mirsoheil Applied Mechanics and Materials 493, 239-244, 2014 | 15 | 2014 |
| Methane emissions from oil and gas production sites and their storage tanks in West Virginia D Johnson, N Clark, R Heltzel, M Darzi, TL Footer, S Herndon, ED Thoma Atmospheric Environment: X 16, 100193, 2022 | 13 | 2022 |
| Continuously varying exhaust outlet diameter to improve efficiency and emissions of a small SI natural gas two-stroke engine by internal EGR M Darzi, D Johnson, RMB Bade, C Ulishney, NZ Meymian, N Clark, ... SAE Technical Paper, 2018 | 12 | 2018 |
| Quantification of energy pathways and gas exchange of a small port injection SI two-stroke natural gas engine operating on different exhaust configurations M Darzi, D Johnson, C Ulishney, RMB Bade, NZ Meymian, G Thompson, ... SAE Technical Paper, 2018 | 12 | 2018 |
| Sensitivity analysis and control methodology for linear engine alternator M Bade, N Clark, P Famouri, PD Guggilapu, M Darzi, D Johnson SAE International Journal of Advances and Current Practices in Mobility 1 …, 2019 | 10 | 2019 |
| Quantification of windage and vibrational losses in flexure springs of a one kW two-stroke free piston linear engine alternator NZ Meymian, N Clark, J Subramanian, G Heiskell, D Johnson, ... SAE Technical Paper, 2019 | 9 | 2019 |
| Estimated emissions from the prime-movers of unconventional natural gas well development using recently collected in-use data in the United States D Johnson, R Heltzel, A Nix, M Darzi, D Oliver Environmental science & technology 52 (9), 5499-5508, 2018 | 6 | 2018 |
| Energy optimization of a micro-CHP engine using 1-D and 3-D modeling M Darzi, NZ Meymian, D Johnson Applied Thermal Engineering 191, 116904, 2021 | 5 | 2021 |
| A framework for energy optimization of small, two-stroke, natural gas engines for combined heat and power applications M Darzi West Virginia University, 2019 | 4 | 2019 |
| In-Use Efficiency of Oxidation and Three-Way Catalysts Used in High- Horsepower Dual Fuel and Dedicated Natural Gas Engines RH Derek Johnson, Mahdi Darzi, Nigel Clark, Andrew Nix SAE Int. J. Engines 11 (3), 2018 | 4 | 2018 |
| Pre-design investigation of resonant frequency effects on gas exchange efficiencies of a one-kw natural-gas linear engine alternator NZ Meymian, M Darzi, D Johnson, P Famouri SAE International Journal of Advances and Current Practices in Mobility 2 …, 2020 | 3 | 2020 |
| Quantification of Windage and Vibrational Losses in Flexure Springs of a One kW Two-Stroke Free Piston Linear Engine Alternator N Zamani Meymian, N Clark, J Subramanian, G Heiskell, D Johnson, ... SAE Technical Paper, 2019 | 1 | 2019 |
Derek JohnsonWest Virginia University's CAFEEVerified email at mail.wvu.edu
