I used this model to analyze energy efficiency of the building
1.b
First result is the below (75.6 kBtu/ ft2/ yr)
![image](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F78829327-e8ca-492d-9aae-e4f7fe24dfba%2FUntitled.png?id=24af2d5d-5455-48d2-95de-e1cc22fa6ece&table=block)
1.c
Second result after setting Operating Schedule (12/5) and Roof Construction (R38)
I got 54.1 (kBtu/ ft2/ yr).
![image](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Fcafa6629-8a89-4061-b34b-1deef2329dc9%2FUntitled.png?id=7715c49f-5b59-4ae8-ad68-1782e04b6f28&table=block)
- I arranged Building Envelope parameters as below and got the result, 49.0 (kBtu/ ft2/ yr).
The factors which I put the star mark (★) have meaningful impact on the results, and the others have no or only slight impact on that.
![image](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F03e3a82c-99d5-41e2-8aeb-29933d821ab3%2FUntitled.png?id=be2ea654-3a8c-4a5b-8919-f35b6351417a&table=block)
b.i ★Wall Construction: R38 Wood
b.ii WWR
- Southern Walls: 0%
- Northern Walls: 50%
★ Western Walls: 15%
★ Eastern Walls: 30- 15%
b.iii Window Glass
- South: Dbl LoE
- North: Dbl LoE
- West: Dbl LoE
- East: Dbl LoE
b.iv Window Shades
- South: 1/6 window height
- North: 1/6 window height
★ West: 1/3 window height
★ East: 1/3 window height
- I also coordinated Power and Lighting Measures and got the result, 44.6 (kBtu/ ft2/ yr).
Compared to Building Envelope parameters, it can achieve almost same reduction in the Predicted Mean EUI, -4.4 (kBtu/ ft2/ yr). The factors which I put the star mark (★) have meaningful impact on the results.
![image](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F6c95bb98-3dd2-4425-bc2a-8c26417a36eb%2FUntitled.png?id=32d23c19-6762-4ff1-93a7-2104ae9f7abe&table=block)
a.i ★Plug Load Efficiency: 1.3W/sf
a.ii ★Lighting Efficiency: 0.7W/sf
a.ii -Daylighting & Occupancy Controls: Daylighting Controls
- PV panels can be said that crucial to improve energy efficiency of the building. Through the experiments, I found the best combination of these factors and got the result as shown in below. I put the star mark (★) for all the factors because they have significant impacts on the results. Therefore, how to utilize PV panels can be the key strategy for achieving the desired goal.
![image](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F8d6f357f-9a56-4eef-93fd-7c54a1ecacd1%2FUntitled.png?id=087bdf73-4884-4455-a871-ab566ed80a65&table=block)
a.i ★PV - Surface Coverage: 90%
a.ii ★PV - Payback Limit: 20year
a.iii ★PV - Panel Efficiency: 20.4%