Specifying the Air Stream

The Streams | AIR | Input | Specifications sheet appears. Aspen Plus requires two thermodynamic specifications, and enough information to calculate the flow rate of each component.

1Enter the following thermodynamic specifications for the MIXED substream:

Temperature	77.0 F
Pressure	14.7 psi

2In the Composition box, click and select Mole-Frac.

3Enter the following mole fractions:

N2	0.79
O2	0.21

4 Enter a total mass flow of 90000 lb/hr.

5 Click to continue.

3-10 • Modeling Coal Combustion

Getting Started - Solids