Curtain Walling System Cladding System Insulation Panels
Triple Glazing Low E Coating Argon Fill Insulated Frame U-Value = 0.57w/m2k Solar Transmittance = 0.57
Area of Glazing = 660m 2 Transmittance = 0.57 South facing vertical Total Solar Heat Gain = kWh January February March AprilMayJune July August September October November December
Green Building Store energy-efficient-glazing.html External shading overhangs/louvres Light shelf
21 st March 9.00AM 70% of lighting required at 67% intensity
50% of lighting required at 50% intensity 21 st March 12.00PM
100% of lighting required at 83% intensity 21 st March 6.00PM
Open Plan office space average % lighting required = 50% 36 fittings per floor operational 13 hours a day Cellular offices with occupancy sensors 12 fittings per floor operational 8 hours a day Toilets with occupancy sensors 4 fittings per floor operational 3 hours a day 43W fittings throughout Energy consumption for March (average for the year) = kWh Heat gain from lighting 100% =
Ground Floor Construction GGBS Insitu Concrete Slab Kingspan® Therma floor™ TF70 Insulation Damp Proof Membrane/Waterproofing U-Value Achieved = 0.14 W/m 2 K
Roof Construction GGBS Insitu Concrete Slab Kingspan® Therma roof™ TR26 LPC/FM Insulation Damp Proof Membrane/Waterproofing Gypsum Plaster U-Value Achieved = W/m 2 K Atrium Glazing (Full System – Frame + Glass) A98 Atrium Glazing Units U-Value Achieved = 0.79 W/m 2 K
Grey Water Harvesting Permeable Paving
Water Reduction Appliances TapsToiletsUrinalsShower Appliance TM Monoblock Tap Ifö Sign Universal WC AIRFLUSH® urinal system Aerated Ecosmart shower head Typical Flowrate of non-water saving 20L/Minute (Cold) 12L/Minute (Hot) 11L/Flush10L/Hour/Urinal20L/Minute Water-Saving Appliance Flow Rate 1.7L/Minute4L/Flush-6L/Minute Percentage of water saving 91.5% (Cold) 85.83% (Hot) 63.64%100%*70%
Q= U*A*ΔT
Pv = (Cv*N*V*ΔT)/3600
Energy Balance : Fabric Heat Losses + Ventilation Heat Losses = Solar Heat Gains + Casual Heat Gains + Energy for Heating or Cooling
With shading overhang: % of solar transmited = 0,84 in winter % of solar transmited = 0,55 in summer
Underfloor heating and cooling system
Underfloor cooling system is not good enough › Increase airflow through ventilation › Install air conditioning system
Air Supplied Air extracted Ground Heat Exchanger