better by design, exploring containment options to optimise every cooling kw
DESCRIPTION
Presented at Data Centre World, 27/2/13, 11.30am, Facilities Theatre. With many alternative cooling solutions available it can be confusing as to which most improve efficiency and reduce operating costs of a data centre. Using CFD modelling and actual site data to illustrate best practice, Airedale International Air Conditioning demonstrates the benefits and constraints of available containment options and proposes optimised free-cooling solutions for each application type. The session was presented by George Hannah, Product Development Director, Airedale International Air Conditioning. George plays a key role in strengthening Airedale’s position at the forefront of precision air conditioning and chiller development, by leading an expanding programme of new product development and the application of new generation technology. His remit is to steer the company's expansion into developing rack level cooling systems and innovative cooling solutions that increase data centre efficiency, raise free-cooling potential and harness and reclaim energy. George heads a product development team of twenty three, including sponsored PhD students and graduate apprentices. He is a chartered mechanical engineer with a B Eng (Hons) from Heriot Watt University.TRANSCRIPT
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www.airedale.com
Better by design, exploring containment options to optimise every cooling kW
George Hannah / Product Development Director
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www.airedale.com
Why Airedale?
Global provider of efficient cooling solutions
40 years experience in IT industry
Largest UK manufacturer of IT cooling solutions
A pioneer in free-cooling technology
An industry leader in rack level cooling
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Footprint & Density
Operational Costs
Capital Costs
Efficiency
Uptime
Business issues
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Types of containment
ECHO – Compact Hot Aisle
OnRak Compact Hot Aisle
Open Aisle Cold Aisle Hot Aisle
InRak Hot Aisle
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The 2nd law of thermodynamics
“The second law states that spontaneous natural processes increase entropy overall, or in another formulation that heat can spontaneously be conducted or radiated only
from a higher-temperature region to a lower-temperature region, but not the other way around.”
TH TC
TW
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Open aisle (500 kW facility)
Temperature (oC)
Total heat load 5 kW per rack
Total number of cabinets 100
40
35
15
5
10
30
25
20
Return
45
Supply
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Cold aisle containment (500 kW facility)
Temperature (oC)
40
35
15
5
10
30
25
20
45
Total heat load 5 kW per rack
Total number of cabinets 100
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Hot aisle containment (500 kW facility)
Temperature (oC)
Additional IT opportunity =
420kW
Total heat load 10 kW per rack
Total number of cabinets 50
40
35
15
5
10
30
25
20
45
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InRakTM hot aisle containment (500 kW facility)
Temperature (oC)
Additional IT opportunity =
420kW
Total heat load 9.8 kW per rack
Total number of cabinets 51
40
35
15
5
10
30
25
20
45
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OnRakTM compact hot aisle (500 kW facility)
Temperature (oC)
Additional IT opportunity
=1880kW
Total heat load 20 kW per rack
Total number of cabinets 25
40
35
15
5
10
30
25
20
45
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ECHO – compact hot aisle (500 kW facility)
Temperature (oC)
40
35
15
5
10
30
25
20
45
AdditionalIT opportunity
= 894kW
Total heat load 20 kW per rack
Total number of cabinets 25
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Supply and return temperatures
Temperature (oC)
40
35
15
5
10
30
25
20
45Supply Return
OnRakTM
ECHO
InRakTM
Hot aisle
Cold aisle
Open aisle
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www.airedale.com
Supply and Return Temperatures
Open Aisle
Cold Aisle
Hot Aisle
InRak OnRak ECHO
45
0
35
15
5
10
20
25
30
40
Temperature oC Return Air
Supply Air
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Free-cooling
Hours per year
600
300
Ambient Temperature (ºC) -6 -2 2 6 10 14 18 22 26 30
48% 51%
1%
Open aisle
Free-cooling Concurrent Mode Mechanical
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Free-cooling
Cold aisle
Free-cooling Concurrent Mode Mechanical
Hours per year
600
300
-6 -2 2 6 10 14 18 22 26 30
62% 32%6%
Ambient Temperature (ºC)
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Free-cooling
Hot aisle
Free-cooling Concurrent Mode Mechanical
600
300
Ambient Temperature (ºC) -6 -2 2 6 10 14 18 22 26
67% 18%25%
Hours per year
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Free-cooling
InRakTM
Free-cooling Concurrent Mode Mechanical
600
300
Ambient Temperature (ºC) -6 -2 2 6 10 14 18 22 26
67% 18%25%
Hours per year
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Free-cooling
OnRakTM
Free-cooling Concurrent Mode Mechanical
Hours per year
600
300
-6 -2 2 6 10 14 18 22 26 30
69% 11%20%
Ambient Temperature (ºC)
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Free-cooling
ECHO
Free-cooling Concurrent Mode Mechanical
Hours per year
600
300
Ambient Temperature (ºC) -6 -2 2 6 10 14 18 22 26 30
89% 10%
1%
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Free-cooling
Free-cooling
Concurrent Mode
Mechanical Open aisle Cold aisle Hot aisle
InRakTM OnRakTM ECHO
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InRakHot aisle
Cold aisle
Open aisle
Increased IT opportunity
0
20
100
40
60
80
Space m2
30m² 32m² 56m² 45m²
Cooling equipment (m2)
Rack (m2) Additional space (m2)
OnRak Echo
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1.45 1.38 1.30 1.29 1.26 1.24
3 year lifecycle cost
0
0.2
1.2
0.4
0.6
0.8
1.0
£ (millions)
Operating costs (over 3 years)
Total capital cost
PUE
InRakHot aisle
Cold aisle
Open aisle
OnRak Echo
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Case study: Open aisle containment
The chillers give us 1500kW n + 1 cooling plus a stunning reduction in electricity consumption i.e.
2.5 times cooling capacity for 100 – 150kW less power consumption per day.
Mark Ford
Data Centre Manager
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Case study: Hot aisle containment
Airedale provides us with a fully integrated cooling solution designed for maximum efficiency and
critical redundancy…Our carbon neutral status helps our clients take huge steps towards their own
environmental goals and carbon reduction commitments.
Rob Garbutt
Chief Executive Officer
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Case study: InRakTM hot aisle containment
The InRakTM is perfectly designed…the units are very clever; they ‘talk’ to each other and maintain
pressure in the room. ACIS gives us 24/7 control of the operation and peace of mind.
Mike Marchant
Data Centre Manager
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Case study: OnRakTM compact hot aisle
Our HPC facility at Leeds is growing …by meeting our space constraints and slotting into our existing cooling loop, the OnRakTM units from Airedale have
saved us space in an already densely packed environment
Dr Jon Summers
Senior Lecturer, School of Mechanical Engineering
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Business issues
Footprint & Density
Operational Costs
Capital Costs
Efficiency
Uptime
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Questions?
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For more information on any of our products please visit:www.airedale.com
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