Optimized management of datacenter cooling solutions.

1. Optimized management
EMEA Sales Training
April 2011

2. Datacenter needs
Data Centers are a critical element
regarding service continuity and
represent one of the elements with the
highest
energy consumption within the
electrical chain.
Improving the efficiency in cooling
systems is a crucial point in order to
minimize the PUE rating of the Data
Center.
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3. Critical components for Efficiency
Chiller Free Cooling Raised Floor Supervision and Control
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4. Critical components for Efficiency
CRACs Chiller Regulation Distribution
Active Stand By Pressure Control
EC Fans Free Cooling
and Load Sharing Under the raised
Electronic Discharge Temperature
Intelligent Free Cooling Control Active Distribution
Expansion vale
Integrated
Oil Free Technology Dynamic Setpoint Monitoring
Dehumidification
Tandem
Efficient Refrigerants Master Control
Compressors
Energy Saving EC Fans Partial Load Management
Efficient
Refrigerants Tandem Compressors
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5. Integrated solution
Local Area Network for all the cooling
devices
• Adaption of the operating parameters
to meet the real needs of the system
• “tracking logic” for the current thermal
load
• Energy consumption optimization
• Critical situation management
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6. Set-point optimization
LAN connection with CRAC units
•Dynamic set-point according to the
load and operating conditions
•Energy usage optimization in all
operating conditions
•Free-cooling maximization
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7. Set-point optimization
22 °C
Chiller Water 20 °C
Temperature
6,0 18 °C
5,0 16 °C
4,0
3,0
Energy Efficiency Ratio
2,0
1.0
Minimum Medium Max
Internal Load [kW]
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8. Set-point optimization
According to the datacenter structure
different solutions can be applied
Thermal
•Modulating chillers directly connected
load
to a single CRAC
•Modulating chillers directly connected
to the CRACs Thermal
•Medium large chillers directly load
connected to the CRACs
•Chillers connected to separate areas
•Master control for the entire data Thermal
centers load
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9. Innovative Solutions for All Conditions
Continuous capacity adaption Discharge air temperature control
Outlet water temperature control
Thermal
load
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10. Innovative Solutions for All Conditions
Continuous capacity adaption Suction air temperature control
Outlet water temperature control according to the room conditions
Thermal
load
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11. Innovative Solutions for All Conditions
Step capacity adaption Suction air temperature control
Outlet water temperature control according to the room conditions
Thermal
load
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12. Master control
Management of the whole system
allows energy consumption to be
optimized and strategies of integrated
control.
Uniflair Master Control is a control and
supervision system of the perimeter
units, the Active Floor® and the chillers.
Each single element optimizes its own
operating parameters depending on the
actual load of the server.
Thermal
load
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13. Case Study – Nationwide, Newbury
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14. Conventional design
Chiller Plant Area
8 ºC
Fixed CW Supply
Temperature
20% 70% 60% 10% 20% Variation in Data
Centre Load
8 ºC
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15. Optimization System
• Modular groups of Downflow units (up
to 10 per group)
• Each modular group connected to a
dedicated FC chiller
• Each FC chiller is self contained
including pumps (1 or 2), expansion
vessel, buffer vessel* and group
controls
• Each modular group requires only
power, pipework connection, LAN
connection
• No requirement for pump controls,
pump plant room
• Installation is fast, efficient and cost
effetive
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16. Optimization System
19 oc 13 oc 14 oc
Variation in CW
Supply Temperature
Variation in Data
20% 70% 60% Centre Load
19 oc 13 oc 14 oc
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17. Optimization System
19 oc 13 oc 14 oc 19 oc 19 oc
Low Cost Build up to Max
20% 70% 60% 10% 20% Data Hall occupation
19 oc 13 oc 14 oc 19 oc 19 oc
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18. Space – risk – CAPEX
Conventional Optimized
Mechanical Plant Space 60 to 100% * 30% *
Water Leakage Potential 150,000 to 200,000 Litres 1,500 Litres
Tolerance Fault tolerant (with twin distribution Fault tolerant (dispersed
system) system)
Cost Up to 60% Less
* % of white space
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19. Space optimization
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20. Simple pipeworks and thermal inertia reduction
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21. Simple pipeworks and thermal inertia reduction
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22. Results
Cooling mode
• External temperature: 35°C
• Load variation: 100 – 250kW
Energy Efficiency
• High Energy Efficiency at low load
6,0
conditions ) 5,0
R E
E
(
+21% +12% +29%
y 4,0
c
n
e
i
c
i 3,0
f
f
E
y
g 2,0
r
e
n
E 1,0
0,0
Min load Middle load Middle load Max load
Load condition
Uniflair Integrated solution Standard control logic
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23. Results
Free-Cooling mode
• External temperature: 10°C
• Load variation: 100 – 250kW
• Free-cooling maximization 18,0
Energy Efficiency
) 16,0
R
E
+10%
E 14,0
(
y 12,0
c
n 10,0 +33%
e
i
c
i
f
f
E
8,0 +42%
y
g 6,0
r
e 4,0
n
E
2,0
0,0
Min load Middle load Middle load Max load
Load condition
Uniflair Integrated solution Standard control logic
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24. Optimized management
2011