HEAT PUMPS FOR DATA CENTRES - Öppen Fjärrvärme...2015/01/21 · Stockholm, Sweden 2x 61XWH0802 +...

HEAT PUMPS FOR DATA CENTRES

Tim Ashton, LEED AP

Marketing Manager-Vertical Markets & AdvanTE3C

'International Conference on Heat Recovery from Data Centers’ Kista Science Tower, Stockholm, Sweden'

Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 2 2

DATA CENTRE COOLING

Traditional solutions

CARRIER OFFER FOCUSES ON EFFICIENT COOLING OF IT EQUIPMENT

Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 3

DATA CENTRE COOLING

Free cooling solutions

PERHAPS NOT THE BEST USE OF ENERGY TO JUST THROW IT AWAY?

Outside

air

Exhaust

To outside

Indirect free cooling solutions Direct solutions

All “throwing

energy out of the

window”

= OR

Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 4 Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 4

HYDONIC SYSTEMS

Liquid Chillers cooling &

Heat rejection plant

AIRSIDE SOLUTIONS

(air cooling, adiabatic,

free cooling)

DATA CENTRE COOLING

System solutions

Management

(BMS / DCIM / Controls)

CRAC / CRAH

(rack/row cooling)

ENERGY (FOSSIL FUELS & OTHER) IS CONSUMED TO

CREATE COOLING & IN PROCESS GENERATES HIGHER

GRADE HEAT THAT IS BEING THROWN AWAY

WASTING IT & WARMING UP THE PLANET?


WHY REJECT & WASTE HEAT?

3R’s - Recover, Redistribute & Reuse

MANY ECOLOGICAL & ECONOMICAL BENEFITS

Recover Reuse Redistribute

https://www.google.fr/url?q=http://www.e3coalition.org/LED_lighting.html&sa=U&ei=xmqDU5WVA86aqAblvoL4Dw&ved=0CDQQ9QEwAzgU&usg=AFQjCNHYHwP8k4cs4y19cRMBfym5BctF6g

RECOVER, DISTRIBUTE & REUSE

Building Space Heating

Service Hot Water

Industrial processes

….etc

Opportunities

MANY OPPORTUNITIES EXIST TO REDISTRIBUTE & REUSE WASTED HEAT

Reduce use of fossil fuels use

Lower CO2 emissions

Significant energy & cost savings

Contribute to reduce global

warming

Support Smart Cities urbanization

APPLICATIONS BENEFITS


HEAT RECOVERY

Different solutions exist

TH

ER

MO

DY

NA

MIC

EQ

UIP

ME

NT

PARTIAL RECOVERY TOTAL RECOVERY

% RECOVERED WATER TEMP °C


HEAT RECOVERY INVESTMENT

Waste heat source

AC system (office, hotel, hospital..)

Industrial process

Natural (air or ground)

Economics

Cost of energy, different sources…

Operating hours -v- heat requirements

Factors affecting payback

SYSTEM WATER TEMPERATURES & EFFICIENCY STRONG IMPACT ON PAYBACK

HEAT PUMP solution

Efficiency & available water temperature


HEAT PUMP SOLUTIONS

Wide portfolio for all applications

~35°C

~65°C

~70°C

~50°C

~63°C

~80°C

INC

RE

AS

ING

HO

T W

AT

ER

TE

MP

S

DESIGNED FOR HEATING

APPLICATIONS

30R series

61 series

30XWH series

CAPACITY RANGE OFFER < 5MW

LOW/MEDIUM TEMPERATURE OFFER

Wide range of product solutions (air sourced and water

sourced) offering water temperatures


HEAT PUMPS FOR HEATING

Heat sources exist all around us

INDUSTRIAL PROCESSES DATA CENTRES NATURAL SOURCES

Air / Ground / Water

sourced

‘earth heat’

Waste heat

Air / water / steam

Rejected to atmosphere

Heat rejection from cooling servers

& IT associated

equipment

HEAT GRADE OBTAINABLE VARIES FROM SOURCE TO APPLICATION



System applications

HYDONIC SYSTEMS

Liquid Chillers cooling &

Heat rejection plant

AIRSIDE SOLUTIONS

(air cooling, adiabatic,

free cooling)

MOST SYSTEMS OFFER A SOURCE OF HEAT FOR HEAT PUMP APPLICATIONS



Application examples COMMON DATA CENTRE COOLING SYSTEMS

BASIS FOR DESIGN

AIR

(AIR is main heat transfer medium)

WATER

(Circulation of chilled water)

REFRIGERANT

(Distributed OR contained)

EQUIPMENT

DESCRIPTION

Air Handling Units (AHU) plant or

packaged units to remove and reject heat

to the exterior (direct or indirect).

Liquid chillers and Computer Room

(CRAC/CRAH) units with air or water cooled

heat rejection.

Computer Room (CRAC/CRAH) OR DX

Packaged units using air or water cooled heat

rejection system

HEAT PUMP

SYSTEM

EXAMPLES

RECOVER HEAT FROM

AIR SYSTEM

REPLACE STD COOLING SYSTEM OR

SUPPLEMENT EXISTING SYSTEM

RECOVER HEAT FROM

HEAT REJECTION SYSTEM

BENEFITS

Air based

Circulation

of fluid (water)

HEAT

RECOVERY

HEAT

RECOVERY

HEAT

RECOVERY

HEAT

RECOVERY

COOLING ADDITIONAL

COOLING

OPPORTUNITIES FOR HEAT RECOVERY IN ALL SYSTEM APPLICATIONS



Airside Heat Recovery

Heat pump(s) solution

Heat pump(s) system is connected to Air Heat Recovery

exchanger(s) in the air handling unit(s) and to the flow & return

from the District Heating system

Airside heat is intercepted before it is rejected to the outside and

rejected via the condenser, boosting the return temperature to the

District heating system from 40℃ to 70℃.

13

24℃

Air from IT room

26℃ 14℃

12℃

System illustrated (Direct)

APPLICABLE FOR NEW DATA CENTER OR EXPANSION PROJECTS

Air rejected

Notes

- Use of intermediate Heat Exchanger

dependent on application needs & design

- All temperatures provided as example only

- Selection of unit or units according to

application need

*

*

NEW RETROFIT REFURBISHMENT

DIS

TR

ICT

HE

AT

ING

OR

OT

HE

R H

EA

TIN

G N

ET

WO

RK



Cooling & Heat Recovery


A Heat Pump(s) system replaces OR supplement standard

chillers to supply the Data centre cooling system AND is

connected to the flow & return from the District Heating system.

Efficiently delivering chilled water whilst rejecting heat via the

CONDENSER into the DISTRICT HEATING SYSTEM raising

in the process the flow temperature



Cooling & Heat Recovery


Heat pump(s) system is connected to Heat Rejection system(s) and

to the flow & return from the District Heating system

HEAT is intercepted before it is rejected to the outside and rejected

via the heat pumps condenser, boosting return temperature to the

District heating from 40℃ to 70℃

NOTE: may contribute to increase existing cooling system efficiency

15

APPLICABLE FOR DATA CENTER REFURBISHMENT OR RETROFIT

EXISTING SYSTEM

32℃

20℃

+



Improving system efficiency

The Challenge:

Raise heating water from 40 °C to 70°C by extracting the maximum

of heat from a waste water source at 35°C (cooling it to 12°C)

DECISION FACTORS INCLUDE SOURCE T°C, CAPACITY, INSTALLATION SPACE ETC..

?

1x HEAT PUMP unit ? 2x HEAT PUMP unit ? OR HOW MANY?



Improving system efficiency

SYSTEM ONE

1x HEAT PUMP unit

Cycle

improvement

evaporator

Co

nd

en

se

r

70°C

40°C

12°C 35°C

MULTIPLE UNITS PLUS SERIES COUNTERFLOW = 1,6x EFFICIENCY GAIN

BENEFITS INCLUDE

Higher system efficiency

Increased waste heat recovery opportunities

(high delta T…)

Reduced running costs

Improved ROI

COP = 3,0

35°C 12°C

40°C 70°C

SIMPLIFIED CARNOT CYCLE

SYSTEM TWO

2x HEAT PUMPS in series counter flow

35°C 22°C

53°C 70°C

22°C 12°C

40°C 53,°C

COP = 4,2



Plant system efficiency & optimisation

Full Plant Room Control & optimisation solutions inc.

Chillers, pumps, values & integration of other equipment

OPTIMIZED PLANT MANAGEMENT

SYSTEM MANAGEMENT & OPTIMISATION IMPORTANT TO DELIVER EFFICIENCY



NUMBER OF HEAT PUMPS IN SYSTEM

2x 4x 4x 2x 3x 4x

OP

ER

AT

ING

CO

ND

ITIO

NS

Evaporator (Ent/Leaving) °C 15/8 30/12

Condenser (Ent/Leaving) °C 40/70 40/70

SY

ST

EM

PE

RF

OR

MA

NC

E

Heating capacity (kW) 1025 1600 2100 1250 2000 2760

Coefficient of Performance

COP (kW output/kW input) 3,5 3,8 3,9 4,1 4,4 4,6

19

Examples of system efficiencies

SYSTEM EFFICIENCY MULTIPLIED BY 1.6 WITH MULTI-UNIT SYSTEMS (1->5 UNITS)

Examples based upon

- 30XWH0802 AdvanTE3C HEAT PUMP solution

- Series counter flow installation + controls solution



Data centre cooling & District Heating

Customer challenges

Meeting data centre cooling needs

eliminate public concerns over water vapour cloud (existing

cooling towers)

Solution

- Reject heat @ 70°C to the District Heating

Projet PIONEN

Stockholm, Sweden

2x 61XWH0802 + control



Data centers as a heat source

RECOVER, REDISTRIBUTE & REUSE HEAT



‘SMART CITY’

High efficiency, reliable

heat pumps and optimized

Plant System Management

Reuse data center heat for

district heating / process

applications

Reduce use of fuels,

reduced CO2 emissions

Hotels

Hospitals

SUPPORTS SMART LOW-ENERGY URBANISATION DEVELOPMENT

Large buildings &

small offices

Data Centres


T I M A S H T O N , L E E D A P

M A R K E T I N G M A N A G E R - V E R T I C A L M A R K E T S & A D V A N T E 3 C

THANK YOU

HEAT PUMPS FOR DATA CENTRES - Öppen Fjärrvärme...2015/01/21 · Stockholm, Sweden 2x 61XWH0802 +...

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