2.  Site  Requirements  Local Resources  Initial layout ideas  Brief material selection  Supply options

3.  5MW Demand  Strong operational efficiency  Reliable  PowerEdge R420 servers

4. No of servers in rack 42 Total area 0.6 Power Per Server (W) 350 Length of rack (m) 0.6 Power Per rack (W) 14700 Breadth of rack (m) 1 Height (m) 2.2 Power Demand (W) 5000000 Volume (m) 1.32 No of Racks 340.1360544 Total rack floor area (m2) 204.0816 No of racks in isle 25 Length of isle (m) 15 No of rack isles 14 New Total Area of Racks 210

5.  50 Staff  Online Office Work space Calculator  200mx300m Site  Comfortable space per person Selected Individual Offices 10 Open plan (40 staff) 1 Meeting Room 1 Reception Area 1 Storage Rooms 2 Copy/Print Areas 1 Kitchenette/ Tea Point 1 Canteen 1 CloakRoom 1 First Aid Room 1 Toilet Facilities 4 Work Space calculator result: Area (Square metres) 1186 AREA (m2)1200

6.  Average usage per m2  Covers – IT, Heating, Cooling, Lighting  Analysis of natural light entering building using Dialux  Heat recovery from Server rooms

7. Server room layout criteria:  Enough space for required servers  Hot/Cold aisle layout must control airflow  Make cooling system run more efficiently  Secure  Provide clear and safe access to equipment

8. With total of 340 racks needed we had two options  One large server room with total required racks  Divide up rack into smaller rooms

9.  Decided on the four separate server rooms.  Each room containing 90 Racks - 6 Aisles which have 15 Racks in them.  From research smaller rooms are more common.  AC units need a higher air supply temp to be more efficient.  Fire or leaks.  Structural layout.

10. Office/Facility space must:  Maximise natural light  Located so heat from server rooms can be utilised in colder months

13.  Low end temperature- 18 °C  High end temperature- 27 °C  Low end moisture- 5.5 °C Dew point  High end moisture- 60 % Relative humidity 15 °C Dew point  5MW IT Equipment requiring cooling

14.  Hot/ cold aisle containment  Raised floor  Perforated tiles  Fan driven air flow  CRAC units

15.  Cold aisle containment  Less risk of hot air recirculation  The hot and cold air do not mix

16.  Outdoor temperature enables the use of free cooling  Cold air drawn in to accomplish cooling instead of mechanical cooling system  Use of air- side economiser  Hot air exhausted can be mixed with air intake if outside temperature is too cold

17.  Improve PUE  Improve energy efficiency  Reduce Co2 emissions  The waste heat can be used to heat office space

18. Craigengelt – approx. 7 miles from site Craigannet – approx. 7 miles from site (In planning) Greendykeside – approx 6 miles from site Site

21.  Site 60,000m 2  Take PV panel area of 5,000m 2  Cost = £1,200,000  Total energy = 433MWh

23. Structure: Low Carbon Concrete Panel system Steel Timber Glazing Triple Glazing with Low Emissivity Insulation Structural Vacuum Insulated Panel Architectural Wall Panel

24. Triple glazing with Low E Coating Argon Fill U-value = 0.6 w/m2k Solar Transmittance = 0.56

25. 0.14 for walls (1408m²) 0.1 for floor (3056m²) 0.13 for roof (3056m²) 0.6 for glazing (247.3m²) *sizes are still under consideration Fabric loss formulae : Q= U*A*ΔT Walls: 2432 Wattts Floor: 5654 Watts Roof: 5654 Watts Glazing: 1830 Wats

26. Pv = (Cv*N*V*ΔT)/3600 Assuming the volumetric specific heat capacity of air is Cv=1200 J/m 3 K Inside temperature: 20°C Average loss for office = 1623 kWh Average loss for server room = 678 kWh

27.  Natural source of air flow (Wind)  Combination of natural and mechanical ventilation  Extremely efficient and economical

28.  Cold climate  Heating system needed  No need to install another heating system  minimizing local environmental warming

29. Presentation 3 Selection of renewable energy supply and calculations of cooling system. Design ventilation + calculations Demand Reductions Quantify energy savings Communication of results Presentation 4 Finalizing design of the building Writing webpage