Mountain Hut: Modern Shell “The Egg�
Darren Cattle Danny Valles
Core Concept
Legend (inner to outer): Occupancy 4pm-8am (16h) Sun Rise/Set May 1 (14h28m) 5:58a - 8:26p Sun Rise/Set Sept 30 (11h44m) 7:12A - 6:56p Solar Air Collector (11h30m) F1: 170° F2: 135° F3: 100° Solar PV by Floor (12h) F1: 120° F2: 135° F3: 180°
Site Plan + Diagram
Precedence Ideas
Floor 1 Radius: 16.73ft Area: 880ft2 Height: 10.8ft Programs: Dining Kitchen Storage Terrace
Total Floor Area: 3,000 sqft (280 sqm) Total Volume: 820 m3
Floor 2 Radius: 17.09ft Area: 918ft2 Height: 9.1ft Programs: Main Bathroom Bedroom (2)
Floor 2 Bedrooms
Floor 3 Radius: 14.32ft Area: 644ft2 Height: 8.43ft Programs: Living / Storage Bedroom (2)
Floor 3 Bedrooms
Floor 4 Radius: 9.65ft Area: 293Ft2 Height: 8.04ft ProgramS: Host Bedroom Host Bathroom
Overall Height (With Structure): 51.4 ft (15.6 m) Maximum Width (Without Terrace): 36 ft (11m) Total Surface Area: 4,100 sqft (380 sqm)
North-South Section
Structure System
Shell R-Value Zinc: R-0 1” Wood Paneling: R-2 3” Polyisocyuranate: R-21 2”x4” Cross Laminated Timber: R-5
Area of Wood/Total Area = 0.24 R-Panel = 0.24*(R-5)+(1-0.24)*(R-21+R-2) = R-19 Window System (Double Pane, Low-E: SHGC = 0.41 VT = 0.71 R -4
Shell System
Construction Details
Energy Diagram
Solar Air Collectors: Efficiency: 60% global solar radiation recovered Total Area: ~25.3 m2 with 45 hexagonal panels Daily Energy Produced (May1-Sept30): 68 kWh/day Solar Photovoltaic Panels: Efficiency: 15% Radiation Converted to Electricity Total Area: ~48.2 m2 with 100 hexagonal panels Daily Energy Produced (May1-Sept30): 32 kWh/day Windows That Receive Sunlight (South of E-W line): Total Area: ~40.7 m2 with 75 hexagonal panels Potential Daily Solar Gain (May1-Sept30): 37 kWh/day
Peak Month of Energy Use: May Daily Space Heating Demand: ~50 kWh/day Daily Electricity Demand (includes water/heat pump): ~25 kWh/day Average Monthly Demand: 2,200 kWh Total Seasonal Demand (May 1st- Sept 30th): 12,000 kWh
Energy Statistics