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An Apples for Apples Comparison of the Data Centre Cooling Landscape
To provide integrated thermal management solutions, differentiated through innovation and service
George HannahProduct Development Director
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What Do We Do?
40 years experience
Design to delivery3kW to 2.0MW
www.airedale.com
Global provider of
efficient cooling
solutions
A pioneer in free-cooling
technology
An industry leader in rack level cooling
Largest UK manufacturer of IT cooling
solutions
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What Do We Do?
TurboChill™ Freecool 200 - 1100kW
DeltaChill™ Freecool140 - 1080kW
NEW IMAGE TO COME
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Global Presence
50,000+ applications since 1974
1,400 last year2012
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Key Driver - “Increasing Digitalisation”
The data centre market is growing on a global scale The need for data is growing…
Power demand is rising
and thus cooling needsare increasing
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Business Issues
Efficiency
Capital Costs
Operational Costs
Footprintand Density Uptime
Solution
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Definitions
Adiabatic
Free Cooling
Mechanical Cooling
Direct Indirect
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Apples For Apples
500kW heat load
10kW per rack
50 racks
UK ambient dry and wet bulb profile
Fixed return air temperatures
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Cooling Landscape
-10 -5 0 5 10 15 20 25 30 35 40
20
40
60
80
100
120
Ambient Dry Bulb Temperature (°C)
DX CRAC’s
Chiller’s
Free Cooling AHU’s
Power Consumption(kWhour)
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Cooling Landscape
-10 -5 0 5 10 15 20 25 30 35 40
20
40
60
80
100
120
Ambient Dry Bulb Temperature (°C)
Power Consumption(kW/hour)
DX CRAC’s
Chiller’s
Free Cooling AHU’s
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Cooling Landscape – CRAC and AHUs
System TypePrimary Cooling Medium
IndoorProduct
OutdoorProduct
IndirectFree
CoolingConcurrent
Mechanical Cooling
Adiabatic
Chiller System+ Adiabatic Chiller
DX CRAC System Condenser
Chiller System
Standard Chiller
Chiller System+ Free Cool Chiller
FREE
COOL
Chiller System+ Adiabatic & Free Cool Chiller
FREE
COOL
System TypePrimaryCoolingMedium
OutdoorProduct
Direct/IndirectFree
CoolingConcurren
tMechanical
CoolingAdiabatic
Direct AHU+ Concurrent AHU
FREE
COOL
Direct AHU + Adiabatic AHU
FREE
COOL
Indirect AHU+ Concurrent AHU
FREE
COOL
Indirect AHU+ Adiabatic AHU
FREE
COOL
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Cooling Landscape – CRAC Unit Options
Chiller System + Adiabatic & Free
Cool Chiller
FREE
COOL
Chiller SystemStandard Chiller
Chiller System + Free Cool Chiller
FREE
COOL
System Type IndoorProduct
OutdoorProduct
FreeCooling
AdiabaticPrimary Cooling Medium
Indirect
DX CRAC SystemCondenser
Chiller System+ Adiabaitic Chiller
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Cooling Landscape – Air Handling Unit Options
System TypePrimary Cooling Medium
Outdoor Product
Direct/
Indirect
FreeCooling
Concurrent Adiabatic
Direct AHU + Adiabatic AHU
FREE
COOL
Indirect AHU + Adiabatic AHU
FREE
COOL
Direct AHU + Concurrent AHU
FREE
COOL
Indirect AHU + Concurrent AHU
FREE
COOL
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Primary Cooling Medium
Direct / Indirect
FREE
COOL
Free Cooling
Concurrent (Free and
Mech)
Mechanical Cooling
Adiabatic Cooling
Cooling Systems
Refrigerant CRAC System and Condenser
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FREE
COOL
Primary Cooling Medium
Direct / Indirect
Free Cooling
Concurrent (Free and
Mech)
Mechanical Cooling
Adiabatic Cooling
Cooling Systems
Chilled Water CRAC System + Chiller
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FREE
COOL
Primary Cooling Medium
Direct / Indirect
Free Cooling
Concurrent (Free and
Mech)
Mechanical Cooling
Adiabatic Cooling
Cooling Systems
Chilled Water CRAC System + Adiabatic Chiller
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FREE
COOL
Primary Cooling Medium
Direct / Indirect
Free Cooling
Concurrent (Free and
Mech)
Mechanical Cooling
Adiabatic Cooling
Cooling Systems
Chilled Water CRAC System + Free Cooling Chiller
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FREE
COOL
Primary Cooling Medium
Direct / Indirect
Free Cooling
Concurrent (Free and
Mech)
Mechanical Cooling
Adiabatic Cooling
Cooling Systems
Chilled Water CRAC System + Adiabatic Free Cooling Chiller
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FREE
COOL
Primary Cooling Medium
Direct / Indirect
Free Cooling
Concurrent (Free and
Mech)
Mechanical Cooling
Adiabatic Cooling
Cooling Systems
Direct Air Free Cooling Air Handling Unit
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FREE
COOL
Primary Cooling Medium
Direct / Indirect
Free Cooling
Concurrent (Free and
Mech)
Mechanical Cooling
Adiabatic Cooling
Cooling Systems
Direct Air Free Cooling Air Handling Unit + Adiabatic
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FREE
COOL
Primary Cooling Medium
Direct / Indirect
Free Cooling
Concurrent (Free and
Mech)
Mechanical Cooling
Adiabatic Cooling
Cooling Systems
Indirect Air Free Cooling Air Handling Unit
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FREE
COOL
Primary Cooling Medium
Direct / Indirect
Free Cooling
Concurrent (Free and
Mech)
Mechanical Cooling
Adiabatic Cooling
Cooling Systems
Indirect Air Free Cooling Air Handling Unit + Adiabatic
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Free Cooling Potential
Wet Bulb atPeak Dry Bulb
Peak Dry Bulb
35
15
0
10
5
20
25
30
Jan May Jun Jul Aug Sep Oct Nov DecFeb Mar Apr
°C
Data obtained from London Gatwick
FREE
COOL
Free CoolingThreshold
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Total Cost of Ownership (5yrs) – 500kW System
DX CRAC
Chiller
Adiabatic Chiller
FC Chiller
Adiabatic FC Chiller
Direct + Concurrent
Direct + Adiabatic
Indirect + Concurrent
Indirect + Adiabatic
0 400 800£k
Operational Costs
Capital Costs
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Annualised PUE – 500kW System
1.10 1.25 1.45
DX CRAC
Chiller
Adiabatic Chiller
FC Chiller
Adiabatic FC Chiller
Direct + Concurrent
Direct + Adiabatic
Indirect + Concurrent
Indirect + Adiabatic
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Total Cost of Ownership – 500kW System
700
200
Year 1
Year 2
Year 3
Year 4
Year 5
400
0
£k Chiller - Standard£676,000
Chiller + Adiabatic£686,000
Chiller + Free Cooling£384,000
Chiller + Adiabatic & Free Cooling
£359,000
Direct AHU + Concurrent£272,000
Direct AHU + Adiabatic£271,000
Indirect + Concurrent£358,000
Indirect + Adiabatic£354,000
DX CRAC£628,000
£357,573£270,079
100
300
500
600
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Cooling Equipment Footprint
0 25 50m2
Indoor Footprint
Total System Footprint
DX CRAC
Chiller
Adiabatic Chiller
FC Chiller
Adiabatic FC Chiller
Direct + Concurrent
Direct + Adiabatic
Indirect + Concurrent
Indirect + Adiabatic
Indoor Footprint
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Cooling Landscape
-10 -5 0 5 10 15 20 25 30 35 40
20
40
60
80
100
120
Ambient Dry Bulb Temperature (°C)
DX CRAC’s
Chiller’s
Free Cooling AHU’s
Power Consumption(kW/hour)
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Cooling Landscape
-10 -5 0 5 10 15 20 25 30 35 40
20
40
60
80
100
120
Ambient Dry Bulb Temperature (°C)
Power Consumption(kW/hour)
DX CRAC’s
Chiller’s
Free Cooling AHU’s
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Data Centre Solutions
AireFlowTM
AHUs100-300kW
SmartCoolTM
16-233kWInRakTM
10-63kWCondensers/Dry Coolers12-174kW
Free-coolingChillers20kW-1.6MW
OnRakTM
3-35kW
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Data Centre Solutions
ACISTM Integrated Controls Solutions
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Business Issues - Recap
Efficiency
Capital Costs
Operational Costs
Footprintand Density Uptime
Solution