Purpose
This feature allows the user to define an engineering unit. This can be an SI unit or any other unit that is required for your model. As the conversion to and from SI units must always be added, consistency in the equations can always be ensured.
Explanation of the editor
A new unit is defined in the “Miscellaneous” section of MOSAICmodeling as shown below in Figure 1. The editor might look confusing at first, but with the details and explanation provided in Table 1, the definition of new units should be fairly easy.
| Element | Explanation |
|---|---|
| File | Filename of your engineering unit once you have saved or loaded it |
| Unit identifier | Short form of the unit (usually consisting of the symbols used for the unit) |
| Unit name | Name of the unit spelled out |
| is relative | Check here if the unit is to be used for relative dimensions, e.g., a temperature difference in °C is equal to the difference in K |
| Dimension name | Length, time, temperature, etc. |
| Unit description | Longer explanation of what this unit is used for |
| Dimension description | Longer explanation of what the dimension of this unit is |
| Dimension Exponents | Adapt these units to match its definition. If the unit only consists of integer variables, only the numerator is required. For units with fractions, e.g., the F factor in distillation with the unit  , the denominator is required |
| Load Unit | Load the definition of a certain unit to speed up definitions of new units |
| Load Dimension | Load the definition of a certain dimension to speed up definitions of new units |
| Conversion to SI | Defines the conversion equation from the given unit to the SI unit |
| Conversion from SI | Defines the conversion equation from the SI unit to the given unit |