www.airedale.com

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Innovation in Renovation

Stuart Kay, Business Development Director

Adrian Trevelyan, Aftersales Manager

Presentation for Data Centre World 2015

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Airedale Group - product strategy

Efficiency

Capital

Costs

Operational

Costs

Footprint

and DensityUptime

Cooling

Solutions

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Comprehensive cooling solutions

SmartCoolTM

& EasiCool™

6-233kW

OnRakTM

3-35kW

Condensers/

Dry Coolers

12-174kW

Free-cooling

Chillers

20kW- 1.8MW

InRakTM

10-67kW

AireFlowTM

AHUs

100-440kW

ACISTM Integrated

Controls Solutions

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The Opportunity

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Energy-intensive industry

Annual data centre energy

consumption UK & Ireland:

15 TWh

Large number of legacy data

centres in UK & Ireland

Typical PUE ˃2.25 - data

centres built pre 2008

Significant energy-saving

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2000 2005 2010 2014

Introduction of PUE

4

3

2

1

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Historical trends in energy efficiency

300kW

processing

power

N+1

Legacy DX

CRAC

1,222,020kWh Legacy CW

Chiller + CRAC

1,000,220kWh

Legacy CW

Chiller + FC

CRAC

841,010kWh Current

DX CRAC

645,320kWhCurrent CW

Chiller + CRAC

519,460kWh

Current CW

Chiller + FC

CRAC

383,800kWh

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Innovation in Renovation

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Issues experienced by data centre professionals

“What do you do if you can’t build your data centre from scratch?”

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Renovation options

Refurbish

2Replace

1

Controls

Integration

3

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Upgrade units

and introduce

free-cooling

Refurbish and

integrate

Manage

airflow

Main solutions

CapexOpex

Capex

OpexCapex

Opex

1 32

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Solution 1 – manage airflow

IssuesSeal holes in voids

Separate hot and cold air

Eliminate unevenness in room

temperature

Address hot spots

Adjust operating parameters and

setpoints

SolutionsCFD analysis

Localised cooling

Aisle containment

Airflow management

Advanced Controls Integration

System (BEMS)

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Solution 2 – Upgrade units and introduce free-cooling

IssuesNew systems and upgrades

Introduce free-cooling

Raise CW temperatures

SolutionsPrecision air conditioning

Localised cooling

Free-cooling chillers – direct &

indirect

Aisle containment

Advanced Controls Integration

System (BEMS)

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Solution 3 – refurbish and integrate

Issues SolutionsRaise water temperatures above dew

point

Upgrade to EC fans:

30-70% savings; ROI under 2 years

Increase condenser size

Upgrade EEVs:

up to 30% energy savings

Optimise refrigerant charge or renew

refrigerant:

10% loss in refrigerant = 20% increase

in energy consumption

Upgrade sequencer and controls

Component upgrades

AsNew™ refurbishment

Airedale projects team

Advanced Controls Integration

System (BEMS)

Re-commission

Preventative maintenance & spares

Training & CPD

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Case study: BAE Systems Warton

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Background & objectives

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Challenges

Long-term

Energy Savings

Improve Control

Of Lab/Computer Rooms

Interface All

Units With BMS

Reduce Required

Cooling Capacity

Reduce On-going

Maintenance Costs

31 individual computer rooms linked to external Airedale chillers

Wide-ranging PAC specifications of Airedale and Denco manufacture

High security site

Critical live environment

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Key project components

Upgrade control system and tailor controls

strategies to individual room conditions

Sequence PACs

Re-commission units

and air balance

Retrofit EC fans & EEVs and other energy

efficient components

Upgrade refrigerant in line

with current legislation

Multi-disciplinary

project team

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EC fans & EEVs

Low air flow

resistance

Improve Energy

Efficiency Ratio

(EER) by

up to 30%

Very precise

variable

speed control

10% loss in

refrigerant charge

can increase

operational

costs

by 20%

Precise

refrigeration

control at

part-load and

lower

ambients

70% more

efficient than

AC fans at

part-load

EC Fans

EEVs

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100%

50%

0%

EC fans, CW valve

and DX controls

Temperature and

humidity set points

and dead bands

Sequencing of

PAC units

Air balancing

Bespoke controls strategies

CW valve

position

Fan speed

100%

20%

0

40%

60%

80%

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26Time

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Results

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2,500,000

500,000

0

1,000,000

1,500,000

2,000,000

Breakdown of annual energy savings (kWh)

Energy savings by category

58,40078,329

113,706

750,675

2,252,026

31,536

Fan savings

Chiller efficiencies

Sensible heat

EEVs

Refrigerant charge

Improved air flow

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Jon Farmer, CEM

Energy Manager

BAE Systems, Military Air & Information

“”

Airedale was selected as the most

competent company with the best

product to meet our needs.The project involved retrofitting new EC fans,

chilled water valves and controls to over

70 CRAC units over a 12-month period.

The savings have been measured and amortised

to give an annual saving of around £350,000

Testimonials

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Paul Wainwright

Director

Joule Consultants

“”The flexibility of Airedale’s products and services

allowed us to customise the best control solution

for each computer room so that room cooling

was maintained whilst minimising energy

consumption

Testimonials

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Airedale Group - product strategy

Efficiency

Capital

Costs

Operational

Costs

Footprint

and DensityUptime

Cooling

Solutions

www.airedale.com

www.airedale.com