Double Compression Expansion Engine: A Parametric Study on a High-Efficiency Engine Concept
KAUST DepartmentPhysical Sciences and Engineering (PSE) Division
Mechanical Engineering Program
Clean Combustion Research Center
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AbstractThe Double compression expansion engine (DCEE) concept has exhibited a potential for achieving high brake thermal efficiencies (BTE). The effect of different engine components on system efficiency was evaluated in this work using GT Power simulations. A parametric study on piston insulation, convection heat transfer multiplier, expander head insulation, insulation of connecting pipes, ports and tanks, and the expander intake valve lift profiles was conducted to understand the critical parameters that affected engine efficiency. The simulations were constrained to a constant peak cylinder pressure of 300 bar, and a fixed combustion phasing. The results from this study would be useful in making technology choices that will help realise the potential of this engine concept.
CitationBhavani Shankar VS, Johansson B, Andersson A (2018) Double Compression Expansion Engine: A Parametric Study on a High-Efficiency Engine Concept. SAE Technical Paper Series. Available: http://dx.doi.org/10.4271/2018-01-0890.
JournalSAE Technical Paper Series
Conference/Event name2018 SAE World Congress Experience, WCX 2018