GT-SUITE simulation software includes advanced solvers and components for modeling the entire Evaporative Emission Control System (EVAP), including the flow network, carbon canister, and canister purge valve (CPV). An activated carbon canister is used to capture hydrocarbon vapor emissions from the fuel tank as part of an EVAP system. The user has full control over defining the heterogeneous reaction mechanism for modeling the hydrocarbon adsorption and desorption in the carbon canister. There is increasing interest in optimizing the carbon canister size for hydrocarbon storage, and optimizing the CPV control strategy, especially for turbocharged gasoline direct injection (GDI) engines and hybrid electric vehicles (HEV/PHEV).
GT-SUITE allows you to evaluate how a purge event affects engine performance and emissions. You can also choose when and where to purge during a drive cycle, for example, in an intake manifold under vacuum conditions or upstream of the compressor during boosted conditions. EVAP system components can be modeled in isolation or together with vehicle, engine, thermal management, and control systems, making this tool uniquely suitable for system level optimization and collaborative engineering. The most important features of this application are as follows: