WARM UP #3C: WINDOW- SHADING


OBJECTIVES: In this warm up you will

Learn about Energy Scheming:

• enter sun angle dependent shading devices
  
• rule of thumb parameter setting
  
  

Learn about energy:

• effect of orientation on solar radiation gain
  
• the performance of various shade types
  
• effect of window size and placement on ventilation
  
• the effect of sun position on radiation gain
  
• the effect of night insulation on heat loss
  
  

Learn about architectural design implications:

• the role of shading devices in facade composition (SWL #65, #66, #68)
  
• contrasts and similarities in building and glazing orientation (SWL #31, #33, #34, #35)
  
• glazing area and facade composition (SWL #41, #58, #60, #63)
  
• plan openness and cross ventilation (SWL #32, #63, #64)
  
  
  

PROCEDURE:
1) Resize the internet browser window to a 2" wide narrow strip on the right hand side of the monitor.







2) In this exercise you will modify a file created in Warm Up
3 Intro. Open Energy Scheming by double clicking the folder and application icon, then open the file (your last name) - Bldg 1 South 100.



3) Arrange the Energy Scheming window and the internet browser window like this.




4) Under the file menu, choose Save Building File As.... Save the file as "(your last name) - Bldg. 1 S & W 100 Shaded".




5) Select the take off layer and create a west elevation with 100 sf of double pane fixed glazing with no internal or external shading. Save.




6) Select overhang/awning for the external shade. Then choose Detailed Window Design.



7) In the External Shades window, select Review Angles button under Sun Angle Dependent.




8) This table shows the percent the west window is shaded with an external horizontal overhang.

Questions

Please answer the following questions using the graphic reports and the review angles chart (remember to close the spec window between calculations):

10) Click here if you would like to see the correct answers.

Warm Up #3 Intro
Warm Up #3A: Orientation
Warm Up #3B: Solar Savings Fraction

Go to:

Warm Up #3D: Ventilation

Exercise #3A

Cool Down #3A

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