GT-POWER includes various solutions for modeling combustion and emissions. These solutions play an integral role for engine simulations to accurately predict performance, fuel consumption and engine-out emissions. Various models are available to predict combustion and pollutant formation based on in-cylinder conditions, knock, cycle-to-cycle variation (CCV) and other related processes. These models enable successful analysis at full and part load, as well as real-time capable transient operation for traditional and advanced combustion concepts.
We also offer an Advanced Combustion Toolset, a collection of productivity tools that enable both increased model fidelity and faster runtimes. It includes a state of the art chemical kinetics solver that offers significantly improved computational times, enabling usage of more detailed mechanisms. Potential applications for detailed kinetics include:
- Chemistry in Cylinder Unburned Zone (Knock)
- Chemistry in Cylinder Burned Zone (Emissions)
- Chemistry in Pipes/Flowsplits (Exhaust Manifold Oxidation)
The toolset also includes a pre-processing tool that predicts ignition delay time for mixtures of air, fuel, and residual gases using detailed kinetics. This tool enables the user to create custom correlations for ignition delay (CI) or knock (SI) that consider the effect of pressure, temperature, equivalence ratio, residual gas fraction, fuel composition, etc.