Saving up to 60% Saving up to 60% of Energy With The of Energy With The Precision Cooling Precision Cooling SmartAisleSmartAisle™ ™ ConfigurationConfiguration
•2
Agenda Agenda Agenda Agenda
What’s Containment? How to get Energy Efficiency? Focus on Emerson Network Power solution Energy saving:
• In the Row cooling
• Floor Mount Direct Expansion
• Chilled Water System
•3
WhatWhat’’s Containment?s Containment?WhatWhat’’s Containment?s Containment?
HOT COLD
It means to contain different zones using mechanical and real barriers
What does “Containment”
mean?
What can be “Contained”?
Hot Aisle
Cold Aisle
Hot & Cold Aisles
•4
Why Containment?Why Containment?Why Containment?Why Containment?
Air always goes the easiest way!Without containment there is a fast recirculation of warm air from the rear side of racks to their front side
•5
Traditional Air Cooling TroublesTraditional Air Cooling TroublesTraditional Air Cooling TroublesTraditional Air Cooling Troubles
10°-15°C
•6
The First Step: ContainmentThe First Step: ContainmentThe First Step: ContainmentThe First Step: Containment
20°-26°C
•7
Containment: Containment: How To Provide Energy Efficiency?How To Provide Energy Efficiency?Containment: Containment: How To Provide Energy Efficiency?How To Provide Energy Efficiency?
Q
Qi
Qi
Qi
Qi
Qi
Qi
High energy efficient solutions have to control the airflow in order to have the following:
Qi = Q
Q
Qi
Qi
Qi
Qi
Qi
Qi
How to control the airflow? PRESSURE control
in the raised floor
PRESSURE control at rack level
•8
Why Not Just Containment?Why Not Just Containment?Why Not Just Containment?Why Not Just Containment?
Servers are not getting enough airRisk of hot air intrusion into cold aisle
Over-blowing server fansLow efficiencyReducing server fans lifetime
CR
AC
Un
it
Co
ntr
ol
Supply air sensor
Cold Aisle
Return air sensor
P1 (Pa)
P2 (Pa)
P1 < P2
CR
AC
Un
it
Con
trol
Supply air sensor
Cold Aisle
Return air sensor
P1 (Pa)
P2 (Pa)Leakages
P1 >> P2
•9
Containment: Containment: Pressure Control In The Raised FloorPressure Control In The Raised FloorContainment: Containment: Pressure Control In The Raised FloorPressure Control In The Raised Floor
Airflow is controlled to meet servers’ required flow
Airflow is controlled using pressure sensor and variable speed fans are needed
What about this solution? High Availability
• In case of Unit failure
• In case of gaps in access floor tiles
Lower Energy Efficiency• Higher pressure in the floor void
• Overpressure in Cold Aisle
Emerson Network Power can offer this solution too….anyway we prefer to suggest a more EFFICIENT solution, having the control in front of servers! See next slides
•10
Pressure Control At Rack LevelPressure Control At Rack LevelPressure Control At Rack LevelPressure Control At Rack Level
The space inside the containment can be compared to a glass of water. We have to grant it is always full of water:
not too little, not too much!
Patented Solution
•11
SmartAisleSmartAisle™™ Control Logic Control LogicSmartAisleSmartAisle™™ Control Logic Control Logic
Max 3xT&H sensors for temperature and humidity reading Each value, Temperature and Humidity, can independently be
enabled for controlling Sensors are located in the calibrated holes The average or the highest value is calculated in accordance
with the number of enabled sensors
Lie
ber
t H
PM
fo
r S
mar
t A
isleiCom
Rac
k
Rac
kiCom T&H
Sensor
CAN BUS (from 5 to 50m)
Supply air sensor
Mot. damper (optional)
•12
SmartAisleSmartAisle™™ VS Competitors: Airflow Control VS Competitors: Airflow ControlSmartAisleSmartAisle™™ VS Competitors: Airflow Control VS Competitors: Airflow Control
Simple Containment with Pressure Control SmartAisle™ Be The Critical Difference !!
Too Low Airflow Unit Airflow = Server Airflow No risks for Hot Spot, Hot Air recirculation
Too High Airflow Unit Airflow matches Server Airflow No waste of any single Watt for moving useless air
Common Cascade Smart Cascade: always works with EC Fan at minimum speed
Save a lot of energy having EC Fans in their best working point
•13
SmartAisleSmartAisle™™ VS Competitors: Pressure Control VS Competitors: Pressure ControlSmartAisleSmartAisle™™ VS Competitors: Pressure Control VS Competitors: Pressure Control
Simple Containment with Pressure Control SmartAisle™ Be The Critical Difference !!
Usually works with floor pressure >20-25 Pa
Minimized raised floor pressure (<15Pa)
No waste of any single Watt moving useless air
Pressure in the cold aisle difficult/impossible to be maintained usually using overpressure
No or Minimal overpressure in the hot aisle (<5Pa)
Servers Fans life is not impacted (no overpressure for server fans)
•14
SmartAisleSmartAisle™™ Control VS Competitors: Reliability Control VS Competitors: ReliabilitySmartAisleSmartAisle™™ Control VS Competitors: Reliability Control VS Competitors: Reliability
Simple Containment with Pressure Control SmartAisle™ Be The Critical Difference !!
Control temperature and humidity in the unit or near to it
Control Temperature and Humidity in the Aisle
Our Precision cooling units take care of customer’s servers
Additional equipment (points of failure) like tubes and baffles plates in the raised floor
Simple architecture: high reliability and redundancy. Up to 3 remote sensors per one unit to be connected
Simpler means easier
If Master fails each Unit works as standalone / basic level of Networking (depends on manufacturer)
Unique solution:
Floating Master
The cooling system will always take care of IT equipment
•15
SmartAisle™ : Best Efficiency for Aisle ContaimentSmartAisle™ : Best Efficiency for Aisle Contaiment
Pressure control results on higher fan speed, more air losses and this impacts on System Efficiency
SmartAisle provides the BEST EFFICIENCY in case of Aisle Containment
White Paper Showing the Difference between Smart Aisle and Pressure Control
•16
Precision Cooling For SmartAislePrecision Cooling For SmartAisle™™Precision Cooling For SmartAislePrecision Cooling For SmartAisle™™
Liebert® HPM
Precision Cooling units • From 13 to 80 kW cooling
capacity`• Up to 3 remote sensors per unit• EC fan and Digital Scroll
technology
Liebert® CRV
In the row data center cooling units• From 10 to 40kW cooling capacity`• Available in DX and CW version• EC fan and Digital Scroll technology• Up to 10 remote sensors per unit• Sophisticated control logic • 600 or 300 mm frame width• Cooling at the heat source
Liebert® HPC and Liebert® PCW
Data Center cooling Chillers • From 40 to 1600 kW cooling capacity • Maximized free-cooling effect with new Liebert®
HPC – max fluid temperature up to 26ºCLiebert® PCW /HPM• EC fan technology• Ideally suited for SmartAisle• Premium energy efficiency
In the Row (DX/CW)
Perimetral Direct Expansion
Perimetral Chilled Water
•17
SmartAisleSmartAisle™™: In The Row Cooling: In The Row CoolingCase Study 1: 90 kW Thermal LoadCase Study 1: 90 kW Thermal LoadSmartAisleSmartAisle™™: In The Row Cooling: In The Row CoolingCase Study 1: 90 kW Thermal LoadCase Study 1: 90 kW Thermal Load
Increase in temperature means increase in capacity• Compressor works at a lower modulation
• Fans work at a lower speed
• Lower consumption of fans and compressor Containment maximizes air utilization
In the Row
Direct Expansion
Chilled Water
IT R
acks
Ro
w c
oo
ling
Fan
sp
eed
>
80%
31ºC
18ºC
Traditional Approach
IT R
acks 37ºC
20ºC
SmartAisle
Lie
ber
t C
RV
Fa
n s
pe
ed
69%
30%30%EnergyEnergySavingSaving
8.188 € 8.188 € Yearly Yearly SavingSaving
(Saving calculated in comparison with Traditional In the Row solution without Containment and Emerson Network Power Control, load: 90kW, city Frankfurt)
•18
In the Row
Direct Expansion
Chilled Water
SmartAisleSmartAisle™™: Modulating DX Cooling: Modulating DX CoolingCase Study 2: 300 kW Thermal LoadCase Study 2: 300 kW Thermal LoadSmartAisleSmartAisle™™: Modulating DX Cooling: Modulating DX CoolingCase Study 2: 300 kW Thermal LoadCase Study 2: 300 kW Thermal Load
Integrates the benefits of containment with the capabilities of the control for optimized cooling
The control matches cooling capacity with heat load• Variable speed fans
• Variable capacity compressors Containment maximizes air utilization
60%60%EnergyEnergySavingSaving
79.322 € 79.322 € Yearly Yearly SavingSaving
(Saving calculated in comparison to Traditional DX Floor Mount AC fan solution without Containment and Emerson Network Power Control, load: 300kW, city Frankfurt)
IT R
acks
IT R
acks
100%
F
an S
pee
d
24ºC
14ºC
14ºC
Traditional Approach
IT R
acks
IT R
acks
85%
F
an S
pee
d
28ºC
17ºC
17ºC
Cold Aisle Containment
Pre
cisi
on
C
oo
ling
Un
itP
reci
sio
n
Co
olin
g U
nit
IT R
acks
IT R
acks
60%
F
an S
pee
d
32ºC
19ºC
19ºC
Pre
cisi
on
C
oo
ling
Un
it
SmartAisle
•19
How Do We Achieve SavingsHow Do We Achieve SavingsHow Do We Achieve SavingsHow Do We Achieve Savings
Relation between pressure drop and airflow is exponential
Any saving on airflow side will significantly decrease the fans power input
Cooling capacity increases with increase in evaporating temperature
Higher return air temperature means higher evaporating temperature = increased cooling capacity
In the Row
Direct Expansion
Chilled Water
0
2
4
6
8
10
0 10000 20000 30000 40000
Airflow (m3/h)
Fan
s p
ow
er in
pu
t (k
W)
•20
Reduce Operating Costs: Case Study Reduce Operating Costs: Case Study Reduce Operating Costs: Case Study Reduce Operating Costs: Case Study In the Row
Direct Expansion
Chilled Water
•21
Getting The Best Annual EfficiencyGetting The Best Annual EfficiencyGetting The Best Annual EfficiencyGetting The Best Annual Efficiency
SmartAisle™ Solution:• Maximizes heat exchange
• Reduces the airflow exactly in line with server needs
• 7 x (D5DUA+2xHCR51) All running
FRANKFURTSolution Inves™ent
Cost [€]Energy Cost [€/year]
Saving [€/year]
Pay Back Time [years]
TCO in 2 years [€/kW]
STD Floor Mount AC fan 93.201 125.266 1146
SmartAisle™ + Digital HPM 143.478 45.944 79.322 0,63 785
In the Row
Direct Expansion
Chilled Water
SmartAisle™ MORE THEN 60% of ENERGY SAVING SmartAisle™ MORE THEN 60% of ENERGY SAVING with the servers fully under control !!!with the servers fully under control !!!
SmartAisle™ MORE THEN 60% of ENERGY SAVING SmartAisle™ MORE THEN 60% of ENERGY SAVING with the servers fully under control !!!with the servers fully under control !!!
•22
……WhatWhat’’s The Message?s The Message?……WhatWhat’’s The Message?s The Message?
With Smart Solution + Digital Scroll HPMyou can save at least 793.000 kW/h year
What does this mean?
108 m
25 m
3800 m2 of FotovoltaicPanels requiredto generate the EquivalentPower saved with Digital Aircooled
10% more than entire Colosseo surface !!
In the Row
Direct Expansion
Chilled Water
•23
……WhatWhat’’s The Message?s The Message?……WhatWhat’’s The Message?s The Message?
With Smart Solution + Digital Scroll HPM you can save 372.710 Kg CO2 year
What does this mean?
An average of 12.000 km is the average mileage per year of an European personFIAT 500 generates 119g of CO2 for 1 km. Savings introduced by SmartAisle™ + Liebert® HPM Digital, cooling down 300kW in Frankfurt is the equivalent of the CO2 generated by 261 FIAT 500
261 Fiat 500261 Fiat 500
In the Row
Direct Expansion
Chilled Water
•24
SmartAisleSmartAisle™™: Chilled Water Cooling: Chilled Water CoolingCase Study 3: 460 kW Thermal LoadCase Study 3: 460 kW Thermal LoadSmartAisleSmartAisle™™: Chilled Water Cooling: Chilled Water CoolingCase Study 3: 460 kW Thermal LoadCase Study 3: 460 kW Thermal Load
Integrates the benefits of containment with the capabilities of the control for optimized cooling
The control matches cooling capacity with heat load
Containment maximizes air utilization• Increasing the return air temperature to room
cooling units, which consequently will increase also fluid temperature.
• Enlarging the delta T between air and fluid it’s possible to lower the fan speed, as the cooling capacity provided by room cooling unit is much higher.
Traditional Approach
SmartAisle™ + PCW & Liebert ® Freecooling Chiller
(Saving calculated in comparison to Traditional CW Floor Mount AC fan solution without Containment, Emerson Network Power Control and Freecooling Chiller)
In the Row
Direct Expansion
Chilled Water
63%63%on CRAC Uniton CRAC Unit
67%67%on Freecooling on Freecooling
ChillerChiller EnergyEnergySavingSaving
30.740 € 30.740 € Yearly Yearly SavingSaving
•25
SmartAisleSmartAisle™™: Chilled Water Cooling: Chilled Water CoolingSmartAisleSmartAisle™™: Chilled Water Cooling: Chilled Water Cooling In the Row
Direct Expansion
Chilled Water
Classic Case: Return air: 24°C – 50%RHSupply air: 14ºCFluid T: 10°C - 15°C
SmartAisle™:Return air: 36°C – 28%RHSupply air: 21ºCFluid T: 20°C - 26°C
Lie
ber
t® P
CW
Lie
ber
t® H
PC
0
10000
20000
30000
40000
-10 0 10 20 30 40T [°C]
En
erg
y C
ons
. [kW
h]
FG4036/Fluid T:26-20°C
CG4039/Fluid T:15-10°C
-67%
• Tot 97% Freecooling (+22%)
• Increased EER
•26
Freecooling in Athens?
0
50
100
150
200
250
300
350
400
4036322824201612840-4-8
0
50
100
150
200
250
300
350
400
450
500
30262218141062-2-6-10
0
50
100
150
200
250
300
350
400
450
37332925211713951-3-7-11-15
0
100
200
300
400
500
600
322824201612840-4-8-12
LONDON PARIS
FRANKFURT ATHENS
99% 99%
97% 80%
LiebertLiebert®® HPC - Freecooling Usage HPC - Freecooling UsageLiebertLiebert®® HPC - Freecooling Usage HPC - Freecooling Usage
Freecooling working hours Tinlet = 26°CFreecooling working hours Tinlet = 26°CFreecooling working hours Tinlet = 26°CFreecooling working hours Tinlet = 26°C
•27
LiebertLiebert®® HPC - Energy Saving HPC - Energy SavingLiebertLiebert®® HPC - Energy Saving HPC - Energy Saving
Freecooling in Athens with inlet water temperature at 26°C is equivalent to a Freecooling installed in Moscow with an inlet water temperature of 15°CIncreasing the water temperature
• Maximise Freecooling operation• minimize compressors operation• Maximize the reliability
0
10000
20000
30000
40000
-10 0 10 20 30 40T [°C]
En
erg
y C
on
s. [k
Wh
] FG4036/Fluid T:26-20°C
CG4039/Fluid T:15-10°C
AthensLoad 450kW
-42%
= €33,200 saving= €33,200 saving= €33,200 saving= €33,200 saving
•28
Humidity Control Mixed System CW + DXHumidity Control Mixed System CW + DX
Working with water temperatures above 15°C means that the system will be not able to dehumidify
In case customer has as well strict requirements for humidity control our solution• G Version Liebert® HPC Freecooling Chiller
• Liebert® PCW• This will Maximize Energy Efficiency with SmartAisle solution (80% of Total
Capacity)
• Liebert® HPM Digital DX with Humidity control• Liebert® HPM Digital DX with SmartAisle software that will take care of
humidity control. (20% of Total capacity)
•29
Fire ExtinguishingFire Extinguishing
NO standards available!DEKRA certificate (with Wagner, Siemens, customer)
RESULTS:Early smoke detection
• no changes necessary with cold aisle containment
• recommendation: standard position return temp. CRAC; optional rear door rack (faster detection, localization)
Fire extinguishing• no changes necessary (attention: local regulations)
• recommendation: adjust ratio gas volume room to raised floor/cold aisle
Sprinkler is only for protection of the building (attention: US companies – insurance)
•30
SmartAisleSmartAisle™™ And Servers Availability And Servers AvailabilitySmartAisleSmartAisle™™ And Servers Availability And Servers Availability
Right working conditions for
IT equipment
Right air flow
High reliability due to
multiple sensors and master
rotation
Improved survival time
during power/cooling outage
•31
SmartAisleSmartAisle™™ - No Fear - No FearSmartAisleSmartAisle™™ - No Fear - No Fear
Total outage of air-conditioning, response time
x 2,0
x 2,5
x 2,7
Leakages, 100% fan speed
No improvements
Leakages sealed
Blanking panels
Optimized fan speed
Aisle doors installed
Grating tiles – high
perforation tiles installed
SmartAisle™
•32
SmartAisleSmartAisle™™ Value For Customer Value For CustomerSmartAisleSmartAisle™™ Value For Customer Value For Customer
Maximized Efficiency Flexibility for future growth Intelligent Control - always the right
conditions Higher density – saving
on footprint and size of the equipment
High Reliability Unique Solution
•33
SmartAisleSmartAisle™™ - Complete Solution - Complete SolutionSmartAisleSmartAisle™™ - Complete Solution - Complete Solution
Knürr DI stripLiebert® MPX, MPHAvocent PM
PowerLiebert® APM
RacksInfrastructure Management
Monitoring
Avocent Data Center Planner Avocent DS View
Liebert® CRV
Sensors
Detectors
Liebert® iCom
Liebert® RMS
Liebert® Nform
Liebert® DCM
Avocent Service Processor Manager
Avocent KVM
Switch
Avocent Serial
Console
SmartAisle™
Containment
Rack PDU
Liebert® HPM, PCW
Cooling
Liebert® HPC
THANK YOU!THANK YOU!