Real Gas Effects in High-Pressure Engine Environment

Event
SAE 2010 World Congress & Exhibition
Authors Abstract
Content
Real gas effects are studied during the compression stroke of a diesel engine. Several different real gas models are compared to the ideal gas law and to the experimental pressure history. Comparisons are done with both 1-D and CFD simulations, and reasons and answers are found out for the observed differences between simulations and experimental data. The engine compression ratio was measured for accurate model predictions. In addition, a 300bar extreme pressure case is also analyzed with the real gas model since an engine capable for this performance level is currently being built at the Aalto University School of Science and Technology. Real gas effects are even more important in these extreme conditions than in normal operating pressures. Finally, it is shown that the predicted pressure history during an engine compression stroke by a real gas model is more accurately predicted than by the ideal gas law.
Meta TagsDetails
DOI
https://doi.org/10.4271/2010-01-0627
Pages
10
Citation
Kaario, O., Nuutinen, M., Lehto, K., and Larmi, M., "Real Gas Effects in High-Pressure Engine Environment," SAE Int. J. Engines 3(1):546-555, 2010, https://doi.org/10.4271/2010-01-0627.
Additional Details
Publisher
Published
Apr 12, 2010
Product Code
2010-01-0627
Content Type
Journal Article
Language
English