Numerical investigation into natural gas–diesel dual-fuel engine configuration
Paper
Paper/Presentation Title | Numerical investigation into natural gas–diesel dual-fuel engine configuration |
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Presentation Type | Paper |
Authors | Jing, Baocong (Author) and Wandel, Andrew P. (Author) |
Editors | Masri, A. R., Cleary, M., Dunn, M., Kourmatzis, A., Hawkes, E., Kook, S. and Chan, Q. N. |
Journal or Proceedings Title | Proceedings of the 11th Asia-Pacific Conference on Combustion |
ERA Conference ID | 42433 |
Number of Pages | 4 |
Year | 2017 |
Place of Publication | Australia |
Web Address (URL) of Paper | http://www.anz-combustioninstitute.org/ASPACC2017/index.php |
Conference/Event | 11th Asia-Pacific Conference on Combustion |
Asia Pacific Conference on Combustion | |
Event Details | Asia Pacific Conference on Combustion Rank B B B B B B B B B |
Event Details | 11th Asia-Pacific Conference on Combustion Event Date 10 to end of 14 Dec 2017 Event Location Sydney, Australia |
Abstract | Natural gas is used as an additive to a Diesel engine in a dual-fuel configuration. The natural gas is port injected with the charge, while the Diesel is directly injected. The effect of increasing the energy content contributed by the natural gas (to 11% and 22%) is tested for two engine speeds (2000 and 2500 rpm) using ANSYS Forte with n-heptane as the surrogate fuel for Diesel and methane as the surrogate fuel for natural gas. It was found that the main combustion phase was retarded by additional amounts of natural gas, with 22% methane approaching misfire at 2500 rpm. The thermal efficiency for the other methane cases was higher than Diesel at the corresponding engine speeds, with 11% methane the highest at both engine speeds. Increasing the amount of natural gas significantly reduced the emissions of CO and NOx. Because the natural gas is separately regulated, in practice the amount can be dynamically controlled by the ECU to satisfy the desired performance/emissions levels. The current results suggest that small amounts of natural gas can have a significant positive influence on the emissions profile. |
ANZSRC Field of Research 2020 | 400201. Automotive combustion and fuel engineering |
Public Notes | No evidence of copyright restrictions preventing deposit. |
Byline Affiliations | School of Mechanical and Electrical Engineering |
Computational Engineering and Science Research Centre | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4885/numerical-investigation-into-natural-gas-diesel-dual-fuel-engine-configuration
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