Saving up to 60% of Energy With The Precision Cooling SmartAisle ™ Configuration.

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


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


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


(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


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.


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


•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!

Saving up to 60% of Energy With The Precision Cooling SmartAisle ™ Configuration.

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