Heavy Duty Natural Gas Single Cylinder Research Engine Installation, Commissioning, and Baseline Testing
- 1 Colorado State University, Fort Collins, CO, USA
- 2 Cummins Inc., Columbus, IN, USA
- 3 Woodward Inc., Loveland, CO, USA
- 4 Colorado State University, Fort Collins, CO, USA
- 5 Colorado State University, Fort Collins, CO, USA
- 6 Colorado State University, Fort Collins, CO, USA
Abstract
Natural Gas (NG) Internal Combustion Engines (ICE) are a promising alternative to diesel engines for on-road heavy-duty applications to reduce greenhouse gas and harmful pollutant emissions. NG engines have not been widely adopted due to the lower thermal efficiency compared with diesel engine counterparts. To develop the base knowledge required to reach the desired efficiency, a Single Cylinder Engine (SCE) is the most effective platform to acquire reliable and repeatable data. A SCE test cell was developed using a Cummins 15-liter six-cylinder heavy-duty engine block modified to fire one cylinder (2.5-liter displacement). A Woodward Large Engine Control Module (LECM) is integrated to permit implementation of real-time advanced com bustion control. Intake and exhaust characteristics, fuel composition, and exhaust gas recirculated substitution rate (EGR) are fully adjustable. A high-speed data acquisition system acquires in-cylinder, intake, and exhaust pressure for combustion analysis. The baseline testing shows reliable and consistent results for engine thermal efficiency, indicated mean effective pressure (IMEP), and coefficient of variance of the IMEP over a wide range of operating conditions while achieving effective control of all engine control and operation variables. This test cell will be used to conduct a research program to develop new and innovative control algorithms and CFD optimized combustion chamber designs, allowing ultra-high efficiency and low emissions for NG ICE heavy-duty on-road applications.
- Liu, J. and Dumitrescu, C.E. (2020) Limitations of Natural Gas Lean Burn Spark Ignition Engines Derived from Compression Ignition Engines. Journal of Energy Resources Technology, 142, Article ID: 122308. https://doi.org/10.1115/1.4047404
- Kalghatgi, G. (2014) The Outlook for Fuels for Internal Combustion Engines. International Journal of Engine Research, 15, 383-398. https://doi.org/10.1177/1468087414526189
- Heywood, J. (1998) Internal Combustion Engine Fundamentals. McGraw-Hill, New York.
- Dumitrescu C.E., Padmanaban, V. and Liu, J.L. (2018) An Experimental Investigation of Early Flame Development in an Optical SI Engine Fueled with Natural Gas. Journal of Engineering for Gas Turbines and Power, 140, Article ID: 082802. https://doi.org/10.1115/1.4039616
- Olsen, D.B. and Mitchell, R.H. (2018) Extending Substitution Limits of a Diesel-Natural Gas Dual Fuel Engine. Journal of Energy Resources Technology, 140, Article ID: 052202. https://doi.org/10.1115/1.4038625
- Mohr, J., Zdanowicz, A., Tryner, J., Gustafson, K., Venegas, J., Windom, B., Olsen, D. and Marchese, A. (2019) Ignition, Flame Propagation, and End-Gas Autoignition Studies of Natural Gas/EGR Blends in a Rapid Compression Machine. 2019 WSSCI Fall Technical Meeting, Albuquerque, New Mexico, 14-15 October 2019.
- Bestel, D., Windom, B., Olsen, D., Marchese, A., Bayliff, S. and Xu, H. (2019) 3-D Modeling of the CFR Engine for the Investigation of Knock on Natural Gas. 2019 Fall Meeting of the Western States Section of the Combustion Institute, Albuquerque, New Mexico, 14-15 October 2019.
- Bayliff, S., Marchese, A., Windom, B. and Olsen, D. (2019) The Effect of EGR on Knock Suppression, Efficiency, and Emissions in a Stoichiometric, Spark Ignited, Natural Gas Engine. 2019 WSSCI Fall Technical Meeting, Albuquerque, New Mexico, 14-15 October 2019.
- Bayliff, S. (2020) Evaluation of Controlled End Gas Auto Ignition with Exhaust Gas Recirculation in a Stoichiometric, Spark Ignited, Natural Gas Engine. Colorado State University, Fort Collins, CO, USA. https://doi.org/10.1115/1.0003702V
- Kirkpatrick, A.T. (2020) Internal Combustion Engines: Applied Thermosciences. Wiley, Hoboken. https://doi.org/10.1002/9781119454564
- Turns, S.R. (2012) An Introduction To Combustion Concepts and Applications. McGraw Hill, New York.
- Kaiadi, M., Tunestal, P. and Johansson, B. (2010) Improving Efficiency, Extending the Maximum Load Limit and Characterizing the Control-Related Problems Associated with Higher Loads in a 6-Cylinder Heavy-Duty Natural Gas Engine. ASME Internal Combustion Engine Division 2010 Fall Technical Conference, San Antonio, 12-15 September, 885-892. https://doi.org/10.1115/ICEF2010-35012