[bldg-sim] Horizontal shading in EQUEST

[Jaya Mukhopadhyay <jaya_mukho@xxxxxxxxx>]

I am examining several options for Horizontal shading for an office building using EQUEST.

A synopsis of the answers is as follows:

	Total Annual Energy MBTU	Space Cooling MBTU	Space Heating MBTU
Unshaded Option	8380	2411.9	308.1
2.5 ft Horizontal shading on East West and South	7936.8	2178.8	284.2
5 ft Horizontal shading on East West and South	7835	2158	269.7

 

The Questions:

1. Its very baffling to see the heating consumption go down too. I wanted to see an increase in heating on implementing the shading devices. How can I justify that decrease?

 

2. The building has a total area of 210273 sqft. with 15 ft deep perimeter zones. The shading reduces the energy consumption by 5 to 6 %. Is that acceptable?

 

Any help is greatly appreciated.

Thank you

Jaya Mukhopadhyay

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