CFD Modeling of the injection, the mixing, the combustion and the emission formation processes in a high pressure direct injection (HPDI) natural gas engine is presented in this paper. KIVA3V was used together with an injector model. Two sub-models had been developed that the concurrent injection, ignition and combustion of natural gas and diesel could be simulated. The gas injection was simulated with the injector model. In the injector model, the electromagnetism, the hydraulics and the mechanics were computed by solving a set of ordinary differential equations. Based on the engine experimental data, a combustion model was built in which premixed combustion of natural gas was excluded and the natural gas ignition was initiated by the pilot diesel combustion rather than a spontaneous process. The model calibration and validation are discussed. The model parameters were tuned against one set of engine test data. For the model validation, 30 engine test data were applied. The data were from HPDI engine tests at varied engine speeds, loads and injection timings with and without EGR. The model gave good agreement with the engine tests having no EGR. However, the model, in general, under-predicted the burning rate. With EGR, the model prediction errors were large and the NOx were under-predicted, though the trends were still captured.
Skip Nav Destination
ASME 2005 Internal Combustion Engine Division Fall Technical Conference
September 11–14, 2005
Ottawa, Ontario, Canada
Conference Sponsors:
- Internal Combustion Engine Division
ISBN:
0-7918-4736-5
PROCEEDINGS PAPER
Modeling HPDI Natural Gas Heavy Duty Engine Combustion Available to Purchase
Guowei Li,
Guowei Li
Westport Innovations, Inc., Vancouver, BC, Canada
Search for other works by this author on:
Tim Lennox,
Tim Lennox
Westport Innovations, Inc., Vancouver, BC, Canada
Search for other works by this author on:
Dale Goudie,
Dale Goudie
Westport Innovations, Inc., Vancouver, BC, Canada
Search for other works by this author on:
Mark Dunn
Mark Dunn
Westport Innovations, Inc., Vancouver, BC, Canada
Search for other works by this author on:
Guowei Li
Westport Innovations, Inc., Vancouver, BC, Canada
Tim Lennox
Westport Innovations, Inc., Vancouver, BC, Canada
Dale Goudie
Westport Innovations, Inc., Vancouver, BC, Canada
Mark Dunn
Westport Innovations, Inc., Vancouver, BC, Canada
Paper No:
ICEF2005-1307, pp. 405-413; 9 pages
Published Online:
November 11, 2008
Citation
Li, G, Lennox, T, Goudie, D, & Dunn, M. "Modeling HPDI Natural Gas Heavy Duty Engine Combustion." Proceedings of the ASME 2005 Internal Combustion Engine Division Fall Technical Conference. ASME 2005 Internal Combustion Engine Division Fall Technical Conference (ICEF2005). Ottawa, Ontario, Canada. September 11–14, 2005. pp. 405-413. ASME. https://doi.org/10.1115/ICEF2005-1307
Download citation file:
17
Views
Related Proceedings Papers
Related Articles
The Effects of High-Pressure Injection on a Compression–Ignition, Direct Injection of Natural Gas Engine
J. Eng. Gas Turbines Power (April,2007)
A Computational Investigation of Nonpremixed Combustion of Natural Gas Injected Into Mixture of Argon and Oxygen
J. Eng. Gas Turbines Power (August,2019)
Effect of Swirl Number on Combustion Characteristics in a Natural Gas Diffusion Flame
J. Energy Resour. Technol (December,2013)
Related Chapters
Introduction
Consensus on Operating Practices for Control of Water and Steam Chemistry in Combined Cycle and Cogeneration
Conclusions
Clean and Efficient Coal-Fired Power Plants: Development Toward Advanced Technologies
Expert System Technology for Natural Gas Resource Development
Computerization and Networking of Materials Databases: Fifth Volume