A Path towards High Efficiency Using Argon in an HCCI Engine
Published April 2, 2019 by SAE International in United States
Downloadable datasets for this paper availableAnnotation of this paper is available
Argon replacing Nitrogen has been examined as a novel engine cycle reaching higher efficiency. Experiments were carried out under Homogeneous Charge Compression Ignition (HCCI) conditions using a single cylinder variable compression ratio Cooperative Fuel Research (CFR) engine. Isooctane has been used as the fuel for this study. All the parameters were kept fixed but the compression ratio to make the combustion phasing constant. Typical engine outputs and emissions were compared to conventional cycles with both air and synthetic air. It has been found that the compression ratio of the engine must be significantly reduced while using Argon due to its higher specific heat ratio. The resulting in-cylinder pressure was lower but combustion remains aggressive. However, greater in-cylinder temperatures were reached. To an end, Argon allows gains in fuel efficiency, in unburned hydrocarbon and carbon monoxide, as well as in indicated efficiency.
- Abdulrahman Magdy Mohammed - King Abdullah University of Science & Technology
- Jean-Baptiste Masurier - King Abdullah University of Science & Technology
- Ali Elkhazraji - King Abdullah University of Science & Technology
- Robert Dibble - King Abdullah University of Science & Technology
- Bengt Johansson - King Abdullah University of Science & Technology
CitationMohammed, A., Masurier, J., Elkhazraji, A., Dibble, R. et al., "A Path towards High Efficiency Using Argon in an HCCI Engine," SAE Technical Paper 2019-01-0951, 2019, https://doi.org/10.4271/2019-01-0951.
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