PART I Refined Model
3D views:
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*Walls in green = green walls
The floor plans for the building haven’t changed since Module 6.
Click this Link to access my updated model.
First-floor 3D view
Second-floor 3D view
Third-floor 3D view
Wall systems:
External shear wall
Composition and resistance values are shown below:
Exterior Wall
Composition and resistance values are shown below:
Interior Wall
Composition and resistance values are shown below:
Glazing & Shading Systems:
I used curtain walls a lot to ensure that the users inside the building could enjoy the surrounding environment. I also added operable windows for offices, classrooms, and conference rooms.
I modified the curtain wall mullions to provide shading to the rooms. The south-facing windows have extruded horizontal mullions, while the west and east-facing windows have extruded vertical mullions. There is also a skylight on the roof to allow sunlight to brighten up the spiral stairs. The south- and north-facing windows are triple low-E windows with wood frames to reduce energy loss.
Floor Systems:
I used floors with a marble layer to brighten the interior space.
First floor
Second & third floors
Roof Systems:
Composition and resistance values are shown below. I am planning to place PV panels on top of the roof.
PART II Energy Analysis
Insight Energy Analysis:
Insight results before any changes are made
Adjustments on the thermal properties of the schematic types (I will continue to play around with these a little bit more in the following week).
Insight Results after adjusting the factors
Factors considered (unlisted factors are all set to the BIM value):
HVAC: ASHRAE Package Terminal Heat Pump
Plug Load Efficiency: 0.6W/sf
Lighting Efficiency: 0.3W/sf
Window Glass – North: Trip LoE
Window Glass – South: Trip Lo3
Roof Construction: R38
Daylighting & Occupancy Controls: Daylighting & Occupancy Controls
Wall Construction: R38 Wood
Window Shades – West: 2/3 win height
Window Shades – South: ½ win height & 2/3 win height
Window Shades – North: ½ win height & 2/3 win height
Window Shades – East: 2/3 win height
PV - Panel Efficiency: 20.4%
PV - Payback Limit: 20 yr – 30 yr
PV - Surface Coverage: 90%
If the operating schedule is set to BIM value (as required by the homework description), the mean EUI is a little above the Arch 2030 value.
If the operating schedule is set to 12/5 & 12/6. the mean EUI will be below the Arch 2030 value.
The factors that will impact EUI the most are:
- Operating schedule: should be kept between 12/6 and 12/5
- The type of HVAC system: ASHRAE Package Terminal Heat Pump, which might be expensive.
- Plug load and lighting efficiency should be kept to the most efficient value
- PV panel: panel efficiency should be kept to 20.4%, the payback limit can be 20 years to 30 years, and the surface coverage should cover 90% of the roof.
Overall, the design performs well, as the EUI is below the ASHRAE 90.1 value. Still, the Architecture 2030 goal can only be achieved if the HVAC and lighting systems are highly efficient.
PART III Lighting Analysis
I am taking this class for three units, but I still did a quick study on the lighting of the building.
Lobby
Summer solstice, 6/21, 12pm: The space is not too bright or dark.
Winter solstice, 12/21, 12pm: The space is really bright at the café seating area, and curtains might be needed near the windows. However, people might like to sit near the sunlight in the winter because it is warm.
One of the exhibition spaces
Summer solstice, 6/21, 12 pm: This room is not too bright or dark for exhibition, which is perfect.
Winter solstice, 12/21, 12 pm: The space near the window is bright, but the overall lighting in this room is good.
Private office
Summer solstice, 6/21, 12 pm: The lighting here is perfect; curtains can be added near the windows.
Winter solstice, 12/21, 12 pm: The overall lighting in this room is bright. Sunlight can warm the room, but curtains are needed near the window.
