Boundary Conditions: Supply

In this step, we'll assign the two supply boundary conditions for the Summer scenario. Basically, during the summer months, the idea is to maintain comfort by blowing cooling air through the exhibit hall.

1. Click Boundary Conditions from the Setup tab

2. Make sure all parts are visible by holding Ctrl, and middle clicking anywhere off the model.

3. Rotate the model so that the supply and return are visible.

Hold the Shift key, press the middle mouse button, and move the mouse. The supply and return surfaces should be visible, as shown:

4. Left click on the supply surface.

5. Click Edit from the Boundary Conditions context panel:

Note: We'll start by applying the volume flow rate condition...

6. On the Type row, select Volume Flow Rate.

7. On the Unit row, select ft3/min

8. On the Volume Flow Rate row, enter 550.

Note: This is the proposed flow for the space based on the air handler specifications.

9. Click Apply.

Note: Next is the temperature condition...

10. Right click anywhere off the model, and select, Previous.

Note: There are several ways to select the inlet surface, but we decided to go with the Previous menu item on the right click menu...

11. Right click anywhere near the model, and select Edit...

12. On the Type row, select Temperature.

13. Verify the Units are Fahrenheit. On the Temperature row, enter 64.

14. Click Apply.

What it should look like...

15. To verify that the two boundary conditions are properly assigned to the supply, check the Design Study Bar and the colored stripes on the supply surface:

Note: In the next step we'll apply the return condition...

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