1. A/C Final Project: Design Builder
Tom Christen

2. House Design
Front View
Back View

3. House Layout

4. Location Information Location: Buffalo, NY
Latitude: 42.92oN (25o in Dubai)
Longitude: 78.72oW
Winter Design Weather Data:
Outside Design
Temperature: -16.5oC
Wind Speed: 16.5m/s
Summer Design Weather Data:
Max Dry Bulb Temperature: 30.1oC
Coincident Wet-Bulb Temperature:
21.5oC
Min Dry-Bulb Temperature: 20.6oC

5. Materials: External Walls: (outside to inside) Ground Floor:
Brickwork (Inner Leaf) – 10cm
Oak (Radial) – 3cm
XPS Extruded Polystyrene – 7cm
Glass Wool – 7cm
Wood Blocks– 10cm
Wood Blocks – 10cm
Cast Concrete – 10cm
Glass Wool – 5cm
External Windows:
Gypsum Plaster – 1.3cm
Double Paned – 10% glazed
Roof:
Sunroom Window:
Asphalt Tiles – 2.5cm
Quadruple Paned – 20% glazed
Air Gap – 1cm
Roofing Felt – 0.5cm
External Door:
Glass Wool – 8cm
Steel – 4cm
Internal Partitions:
Internal Door:
Gypsum Plaster – 5cm
Pine – 3.5cm
Air Gap – 10cm

6. Heating/Cooling Systems
Split Central A/C Unit
The outdoor cabinet (shown below) contains the condenser and compressor. An indoor cabinet contains the evaporator.
The indoor cabinet also contains a furnace.
Heating:
Fuel: Natural Gas
Heating System COP: 0.8
Cooling:
Fuel: Electricity from grid
Cooling System COP: 1.6

7. Heating and Cooling Loads
Overall, I took data for 6 different scenarios
4 House Orientations (Sunroom facing North, South, East, and West)
Looking for best and worst case scenarios
2 House Relocations (Hot and Frigid Climates)
Compare Buffalo, NY to extremely hot and extremely cold climates

8. Heating and Cooling Loads
Orientation 1: West
Family Room: 4.03kW (16%)
Den + Game Room: 3.67kW (15%)
Kitchen: 3.12kW (13%)
Cooling Results:
Design Capacity: 10.11kW
Top 3 Room Cooling Requirements:
Sunroom: 3.47kW (34%)
Heating Results:
Kitchen: 1.88kW (19%)
Design Capacity: 24.87kW
Family Room: 1.34kW (13%)
Top 3 Room Heating Requirements:

9. Orientation 1 Temperature and Heat Gain

10. Heating/Cooling Loads (Continued)
Orientation 2: North
Sunroom: 2.18kW (9%) – Same energy req. when large sunroom window faces N or S.
Cooling Results:
Design Capacity: 7.84kW
Top 3 Room Cooling Requirements:
Kitchen: 1.56kW (20%)
Sunroom: 1.34kW (17%)
Heating Results:
Family Room: 1.14kW (15%)
Design Capacity: 24.82kW
Lower than other orientations since large sunroom window faces north. This means that the window sees no sun, and does not absorb any heat.
Top 3 Room Heating Requirements:
Family Room: 4.03kW (16%)
Den + Game Room: 3.66kW (15%)
Kitchen: 3.12kW (13%)

11. Heating/Cooling Loads (Continued)
Orientation 3: 180 degrees (East)
Family Room: 4.04kW (16%)
Den and Game Room: 3.67kW (15%)
Kitchen: 3.12kW (13%)
Cooling Results:
Design Capacity: 9.29kW
Top 3 Room Cooling Requirements:
Sunroom: 2.95kW (32%)
Kitchen: 1.49kW (16%)
Heating Results:
Den and Game Room: 1.17kW (13%)
Design Capacity: 24.87kW
Top 3 Room Heating Requirements:

12. Heating/Cooling Loads (Continued)
Orientation 4: South
Sunroom: 2.18kW (9%) – Do not save any energy with this large south facing window when compared to orientation 2 (90 degrees).
Cooling Results:
Design Capacity: 10.52kW
3kW higher that north orient
Top 3 Room Cooling Requirements:
Heating Results:
Design Capacity: 24.83kW
Sunroom: 3.04kW (29%) – faces sun at all times – over 200% higher than when sunroom faces north
Top 3 Room Heating Requirements:
Family Room: 4.00kW (16%)
Kitchen: 1.71kW (16%)
Den and Game Room: 3.67kW (15%)
Master Bedroom: 1.69kW (16%)
Kitchen: 3.12kW (13%)

13. Results Best Case: Worst Case: Heating: Cooling:
Very little fluctuation when rotating house. Maximum heating load change of 0.04kW.
Cooling:
Minimum cooling load when sunroom faces north (receives no sunlight).
Maximum cooling load when sunroom faces south (constantly faces sun).
Overall, the best case scenario of my house would be with the sunroom facing north (but then it wouldn’t be much of a sunroom!).
Overall, the worst case scenario of my house would be with the sunroom facing south.
Heating Load: 24.83kW
Heating Load: 24.82kW
Cooling Load: 10.52kW
Cooling Load: 7.84kW

14. Relocation 1 Dubai, UAE Latitude: 25.25oN Longitude: 55.33oE
Winter Weather Data:
-Outside Design Temp: 12.3oC
Summer Weather Data:
-Max Dry Bulb Temp: 42.4oC
-Coincident Wet-Bulb Temp: 24.1oC
-Min Dry-Bulb Temp: 32.6oC

15. Relocation 1 Heating Results: Cooling Results:
Design Capacity: 5.22kW (475% reduction from Buffalo, NY)
Design Capacity: 24.38kW (240% increase from same orientation in Buffalo, NY)
Heating load likely due to temperature drop at night
Top 3 Room Cooling Requirements:
Top 3 Room Heating Requirements:
Master Bedroom: 3.8kW (16%)
Family Room: 1.11kW (21%)
Kitchen: 3.37kW (14%)
Den + Game Room: 0.84kW (19%)
Sunroom: 2.83kW (12%) – faces sun at all times
Kitchen: 0.54kW (10%)

16. Relocation 2 Dikson Island, Russia Latitude: 73.53oN
Longitude: 80.40oE
Winter Weather Data:
-Outside Design Temp: -38.9oC
Summer Weather Data:
-Max Dry Bulb Temp: 15.4oC
-Coincident Wet-Bulb Temp: 12.5oC
-Min Dry-Bulb Temp: 12oC

17. Relocation 2 Heating Results: Cooling Results:
Design Capacity: 50.29kW (200% increase from Buffalo, NY – 1000% increase from Dubai)
Design Capacity: 3.65kW (290% reduction from same orientation in Buffalo, NY – 670% reduction from Dubai)
Top 3 Room Heating Requirements:
Top 3 Room Cooling Requirements:
Family Room: 7.79kW (15.5%)
Sunroom: 2.84kW (78%) – faces sun at all times
Den + Game Room: 7.06kW (14%)
Laundry Room: 0.45kW (12%) – laundry equipment heats up room
Kitchen: 6.56kW (13%)
Kitchen: 0.36kW (10%)

18. Questions?