The document outlines Airedale's innovative cooling solutions for data centers, emphasizing energy efficiency and operational cost reduction. It discusses historical energy usage trends and presents renovation options for legacy data centers, including airflow management, upgrades to free-cooling systems, and component refurbishments. A case study on BAE Systems highlights successful implementation achieving significant energy savings through tailored control strategies and advanced component upgrades.

1. www.airedale.com
www.airedale.com
Innovation in Renovation
Stuart Kay, Business Development Director
Adrian Trevelyan, Aftersales Manager
Presentation for Data Centre World 2015

2. www.airedale.com
Airedale Group - product strategy
Efficiency
Capital
Costs
Operational
Costs
Footprint
and Density
Uptime
Cooling
Solutions

3. www.airedale.com
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

4. www.airedale.com
www.airedale.com
The Opportunity

5. www.airedale.com
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
potential
• • • • • • • • • • • • • • •
••••••••••••••••••••••••••••••••••
•
2000 2005 2010 2014
Introduction of PUE
4
3
2
1

6. www.airedale.com
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
645,320kWh
Current CW
Chiller + CRAC
519,460kWh
Current CW
Chiller + FC
CRAC
383,800kWh

7. www.airedale.com
www.airedale.com
Innovation in Renovation

8. www.airedale.com
Issues experienced by data centre professionals
“What do you do if you can’t build your data centre from scratch?”

9. www.airedale.com
Renovation options
Refurbish
2Replace
1
Controls
Integration
3

10. www.airedale.com
Upgrade units
and introduce
free-cooling
Refurbish and
integrate
Manage
airflow
Main solutions
Capex
Opex
Capex
Opex
Capex
Opex
1 32

11. www.airedale.com
Solution 1 – manage airflow
Issues
Seal holes in voids
Separate hot and cold air
Eliminate unevenness in room
temperature
Address hot spots
Adjust operating parameters and
setpoints
Solutions
CFD analysis
Localised cooling
Aisle containment
Airflow management
Advanced Controls Integration
System (BEMS)

12. www.airedale.com
Solution 2 – Upgrade units and introduce free-cooling
Issues
New systems and upgrades
Introduce free-cooling
Raise CW temperatures
Solutions
Precision air conditioning
Localised cooling
Free-cooling chillers – direct &
indirect
Aisle containment
Advanced Controls Integration
System (BEMS)

13. www.airedale.com
Solution 3 – refurbish and integrate
Issues Solutions
Raise 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

14. www.airedale.com
Case study: BAE Systems Warton

15. www.airedale.com
Background & objectives

16. www.airedale.com
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

17. www.airedale.com
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

18. www.airedale.com
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

19. www.airedale.com
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 26
Time

20. www.airedale.com
Results

21. www.airedale.com
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

22. www.airedale.com
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

23. www.airedale.com
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

24. www.airedale.com
Airedale Group - product strategy
Efficiency
Capital
Costs
Operational
Costs
Footprint
and Density
Uptime
Cooling
Solutions

25. www.airedale.com
www.airedale.com