HVAC System Modeling & Simulation

This class is intended for users with previous experience or users who participate in this free-of-charge Introduction Training.

This 1 day class will introduce the use of GT-SUITE software for modeling of air conditioning or heat pump systems, including the refrigerant circuit, HVAC ducting, and cabin.  The course is targeted towards engineers with responsibility for design and analysis of A/C systems, or for those who are responsible for overall vehicle energy management including an A/C system.

The class will consist primarily of interactive model building exercises.  The following are the primary topics to be covered:

• Modeling the refrigerant flow network: Basic flow system modeling and discretization concepts, usage of GEM3D for flow systems modeling.
• Modeling A/C system components: Building and calibration of the basic components of A/C systems, such as compressor, receiver/dryer, thermal expansion valve, and heat exchangers. Usage of COOL3D pre-processing tool to build and automatically discretize more complex scenarios (non-uniform inlet air flow, for example).
• Assembling the complete A/C system model for system level calculations: Assembling the refrigerant flow network and A/C components into a complete model of the A/C system. Steady state and transient system analysis. GT-POST post-processing tool for analysis of results.
• Modeling air circuits: Modeling of the HVAC ducting and the blower.
• Modeling the vehicle cabin: Different levels of modeling detail available for modeling the cabin within GT-SUITE.
• Integration with Cooling/Engine/Vehicle models: Introduction of integrating the A/C system models into vehicle system level simulations including cooling, engine, and driveline systems.  Cabin pulldown transient simulations, transient drive cycle analysis for fuel economy/energy management (i.e. US EPA SC03 cycle).