Conference Proceedings

An optical and numerical characterization of directly injected compressed natural gas jet development at engine-relevant conditions

J Lacey, M Meulemans, F Poursadegh, M Brear, P Petersen, U Kramer, A Smith, M Hornby, D Cosby, P Czimmek

SAE Technical Paper Series | SAE International | Published : 2019

Abstract

© 2019 SAE International; Ford Motor Company. All rights reserved. Compressed natural gas (CNG) is an attractive, alternative fuel for spark-ignited (SI), internal combustion (IC) engines due to its high octane rating, and low energy-specific CO 2 emissions compared with gasoline. Directly-injected (DI) CNG in SI engines has the potential to dramatically decrease vehicles' carbon emissions; however, optimization of DI CNG fueling systems requires a thorough understanding of the behavior of CNG jets in an engine environment. This paper therefore presents an experimental and modeling study of DI gaseous jets, using methane as a surrogate for CNG. Experiments are conducted in a non-reacting, c..

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Funding Acknowledgements

This research was supported by the Ford Motor Company and the Australian Research Council. The authors would also like to thank Continental for providing the injection hardware and for support during the project