Willamette Valley Wildfire Station
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Justen Stiles
Concept Words
Justen
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Enveloping
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Open vs.
Form Development
Concept Models
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Initial Site Programming Justen Stiles
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Analysis Noise Levels
Site
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Relating the two sides of the site to their traffic speeds
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Initial Sketches Justen Stiles
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Initial Site Sketches
First exploration into two curved buildings
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React: Regrowth: Resilience Terminal Studio 2022 Professor Tom Hahn Site Analysis Justen Stiles creswell butte 3 sisters willamette valley dec 21 winter soltice rise: 7:43 am dec 21 winter soltice Fall: 4:36 pm mar sep 21 equinox mar: 6:14 am sep: 5:57 am mar sep 21 equinox mar: 6:25 PM sep: 6:12 PM july 21 summer soltice rise: 4:49 am july 21 summer soltice rise: 7:49 am dec 21 winter soltice solar noon: 12:10 pm dec 21 winter soltice solar noon: 1:19 pm (mar) 1:05 (sep) july 21 summer soltice solar noon: 1:18 pm Strong winds from sw Strong winds from nw
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Journey Diagram
Concept Idea - follow the arc of a firefighter from student to post-firefighting
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Healing Garden Concept
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Initial Structural Concept
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Professor Tom Hahn
A
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Structural Concept B
Site Plan Process
Resilience
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Roof Concept Massing Model
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Site Plan Sketch
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Site Massing Concept
Valley Wildfire Station
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Willamette
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Building Massing Diagrams Willamette Valley Wildfire Station
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Plan
Willamette Valley Wildfire Station
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Second Floor Plan Willamette Valley Wildfire Station
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NORTH ELEVATION
WEST ELEVATION
Elevations
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BOARD + BATTEN SIDING
VERTICAL WOOD CLADDING
HEMPCRETE BLOCK
SOUTH ELEVATION
EAST ELEVATION
Elevations
Willamette Valley Wildfire Station
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Garage Section Perspective
Valley
Station
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Willamette
Wildfire
Gathering Section Perspective
4” CONCRETE THERMAL MASS FAN ASSISTED VENTILATION FOR NIGHT COOLING OF THERMAL MASS STACK EFFECT - VENTILATED THROUGH CLERESTORY CLERESTORY FOR NATURAL DAYLIGHT
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Community
Willamette Valley Wildfire Station
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Water Systems Axon Willamette Valley Wildfire Station
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Exploded Axon Willamette Valley Wildfire Station
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Structural
SHEAR WALLS
12 X 30 GLU-LAM BEAMS
12 X 18 GLU-LAM COLUMNS
8” STEEL PIPE
River Walk
Willamette Valley Wildfire Station
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View From Fire Pit
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Garage Bays
Willamette Valley Wildfire Station
Cooling Load
Cooling Load
Solar Heat Gain (north windows)
People
Totals
Solar Gain (south windows)
Shading
*full citations shown on spreadsheet
Shading
Dec 1 12:00 PM Louvre Angle: 23° July 12:00 PM Louvre Angle: -15°
Design Intent: The largest solar heat gain we plan to address is from the southern glazed wall. We are addressing it through a series of moveable louvres, that move according to the altitude of the sun at that given time. During the winter, the louvres are positioned to let in the sun to heat the thermal mass. In the summer the louvres are angled to block that sun light. The louvres extend from 8’ above the floor to meet the roof at 24’, effectively shading ⅔ of the window. The louvres also work with the design language of the building, which includes a large emphasis on wood, and specifically slatted wood.
Passive
Calculations
Reduction Calculation:
Date: July 1
Louvres shade ⅔ of window: 100%*66.67% = 66.67% shading
Overhang:
61%*33.33% = 20.13% shading
Total: 66.67% + 20.13% = 86.8% shading
Interpretation:
For an entirely glazed wall, this is providing a large amount of shading for one of the hottest months of the year. It is also getting east and west shading from the it being inset into the building. If you are doing a large amount of glazing, it should be adequately shaded, and this shading system is providing this, while also being adaptable to let in winter sunlight.
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Cooling
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Equipment name Power per space (W) Hours per day Days used per month Energy per month (Wh) Energy per month (kWh) Fan 33 6 20 3960 3.96 Lighting Space type Lighting power density (W/sf) Conversion factor (sf per m2) Conversion factor (Btu/h per W) New lighting power density (W/m2) Area (m2) Lighting power per space (W) Hours per day Days per month Energy per month (Wh) Energy per month (kWh) Multipurpos e room 1.07 0.71 0.76 184.13 139.88 8 20 22,381 22.38
Window assembly SHGC Orientation (N, NE, E, etc.) Area (m2) July heat gain per area (kWh/m2) July heat gain (kWh) Double Clear 0.6 S 86.96 54 4695.84
Plug Loads
Window assembly SHGC Orientation (N, NE, E, etc.) Area (m2) July heat gain per area (kWh/m2) July heat gain (kWh) Double Clear 0.6 N 153.48 34 5218.32
Space type Sensible heat gain (W/m2) Area (m2) Occupied hours per day Occupied days per month Energy per month (Wh) Energy per month (kWh) Office (U.S.) 8 184.13 8 20 235686.4 235.69
Cooling season month Plug loads: measured (kWh) Lighting loads (kWh) Solar heat gains (kWh) North Solar heat gains (kWh) People heat gains (kWh) Total (kWh) Daily (kWh) Gathering Space July 3.96 22.38 4695.84 5218.32 235.69 10,176.19 328.26
Dec 1 12:00 PM Louvre Angle: 23° July 1 12:00 PM Louvre Angle: 15°
Shading Mask Hours that need shading shown in red
Thermal Mass
Night Ventilation of Mass
Hours available for cooling: 20 - 8. 12 total hours available
Material chosen: Concrete
Heat Capacity: .75 kJ/kgK
Density: 2240 kg/m3
Heat Gains to Absorb:
Solar North: 168.32 kW/day
Solar South: 151.48kW/day
Total Solar Gains = 319.8 kW/day
Heat Gain (Occupants): 7.6 kW/day
Lighting: 0.72 kW/day
Fans: 0.05 kW/day
Total: 328.12 kWh
Calculating design high and low: Max high: 80F Max low: 58F
26.7C 14.4C
Difference = 12.3C or 12.3K
Calculating Mass Thickness:
(328.12kWh x 3600kJ) x (1/.75 kJ/kgK) x (1/12.3K)
1,181,232 kJ x (1.33kJ/kgK) x (.08K) = 125,683.8kg mass required
125,683.8kg x (1m3/2240kg/m3) x (1/184.1m2)
125,683.8kg x (.0005kg/m3) x (.0054m2)
Total: 0.34m or 14 in. of thickness required
Heat Gains to remove:
Solar North: 168.32 kW/day
Solar South: 151.48kW/day
Total Solar Gains = 319.8 kW/day
Internal Heat Gain (Occupants): 7.6 kW/day
Lighting: 0.72 kW/day
Fans: 0.05 kW/day
Total: 328.12 kW or 1,119,591.9 BTUs
Heat to remove per hour over 12 hours = 93,299.3 BTUs/hour/1950sf
Passive Cooling Calculations
If we want to ventilate with half cross and half stack ventilation, we could take the suggested Inlet/Outlet areas above, divide them each in half, and add them together. For a space around 1950 sq.ft. that gives us 429 sq.ft./2 of stack ventilation and 127 sq.ft./2 for an approximate 278 sq.ft.
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