Group E – Presentation 2Jamie McNicol, Darren McIntosh, Ryan Kilcullen, Karam Mohammed, Connor

Heath and Romain Geissel

Recap

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

Server Selection

5MW Demand Strong

operational efficiency

Reliable PowerEdge

R420 servers

PowerNo 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 340.1360544Total 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

Office Space

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

Office Power Usage

Average usage per m2

Covers – IT, Heating, Cooling, Lighting

Analysis of natural light entering building using Dialux

Heat recovery from Server rooms

Server Room Layout

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

Size and shapeWith total of 340 racks needed we had two options One large server room with total required racks Divide up rack into smaller rooms

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.

Office Space Layout

Office/Facility space must: Maximise natural light Located so heat from server rooms

can be utilised in colder months

Initial Plan

Building Model

Cooling requirements

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

Cooling method

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

Cooling Method

Cold aisle containment Less risk of hot air

recirculation The hot and cold air do

not mix

Free cooling

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

Free Cooling

Improve PUE Improve energy efficiency Reduce Co2 emissions

The waste heat can be used to heat office space

Wind Power

Earlsburn – approx. 9 miles from site

Craigengelt – approx. 7 miles from site

Craigannet – approx. 7 miles from site (In planning)

Greendykeside – approx 6 miles from site

Site

Costing a Wind Farm

Costing a Wind Farm

Photovoltaic Panels Site 60,000m2

Take PV panel area of 5,000m

2

Cost = £1,200,000

Total energy = 433MWh

Sun Path Diagram

Materials Structure:• Low Carbon Concrete • Panel system• Steel• Timber

Glazing• Triple Glazing with Low Emissivity

Insulation• Structural Vacuum Insulated Panel• Architectural Wall Panel

Sample Glazing

Triple glazing with Low E Coating

Argon Fill

U-value = 0.6 w/m2kSolar Transmittance = 0.56

Fabric Loss

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 WattsGlazing: 1830 Wats

Ventilation Loss

Pv = (Cv*N*V*ΔT)/3600

Assuming the volumetric specific heat capacity of air is Cv=1200 J/m3K Inside temperature: 20°C

Average loss for office = 1623 kWhAverage loss for server room = 678 kWh

Hybrid ventilation

Natural source of air flow (Wind)

Combination of natural and mechanical ventilation

Extremely efficient and economical

Server Heat Recycle

Cold climate Heating system needed No need to install

another heating system minimizing local

environmental warming

Future WorkPresentation 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