Unit Model

Unit models represent pieces of equipment and their processes. They include any unit performance constraints and associated variables, such as:

• constraints relating balance terms to physical phenomena or properties (e.g. relating extent of reaction to reaction rate and volume)
• constraints describing flow of material into or out of unit (e.g. pressure driven flow constraints)
• unit level efficiency constraints (e.g. relating mechanical work to fluid work)

Unit models are composed of the following components:

1. Control Volume Blocks, which represent volume of material over which we wish to perform material, energy and/or momentum balances
2. State Blocks and Reaction Blocks, which represent the thermophysical, transport and reaction properties of the material at a specific point in space and time
3. Inlets and Outlets, which allow Unit models to connect to other Unit models