6 Heating/Cooling Systems Split Central A/C UnitThe 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 GasHeating System COP: 0.8Cooling:Fuel: Electricity from gridCooling System COP: 1.6
7 Heating and Cooling Loads Overall, I took data for 6 different scenarios4 House Orientations (Sunroom facing North, South, East, and West)Looking for best and worst case scenarios2 House Relocations (Hot and Frigid Climates)Compare Buffalo, NY to extremely hot and extremely cold climates
10 Heating/Cooling Loads (Continued) Orientation 2: NorthSunroom: 2.18kW (9%) – Same energy req. when large sunroom window faces N or S.Cooling Results:Design Capacity: 7.84kWTop 3 Room Cooling Requirements:Kitchen: 1.56kW (20%)Sunroom: 1.34kW (17%)Heating Results:Family Room: 1.14kW (15%)Design Capacity: 24.82kWLower 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%)
12 Heating/Cooling Loads (Continued) Orientation 4: SouthSunroom: 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: 10.52kW3kW higher that north orientTop 3 Room Cooling Requirements:Heating Results:Design Capacity: 24.83kWSunroom: 3.04kW (29%) – faces sun at all times – over 200% higher than when sunroom faces northTop 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: 24.83kWHeating Load: 24.82kWCooling Load: 10.52kWCooling Load: 7.84kW
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 nightTop 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 timesKitchen: 0.54kW (10%)
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