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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?
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 5
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
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 7
HEAT RECOVERY
Different solutions exist
TH
ER
MO
DY
NA
MIC
EQ
UIP
ME
NT
PARTIAL RECOVERY TOTAL RECOVERY
% RECOVERED WATER TEMP °C
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 8
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
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 9 Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 9
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
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 10
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
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 11
HEAT PUMPS FOR DATA CENTRES
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
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 12 Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 12
HEAT PUMPS FOR DATA CENTRES
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
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 13 Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 13
HEAT PUMPS FOR DATA CENTRES
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
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 14 Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 14
HEAT PUMPS FOR DATA CENTRES
Cooling & Heat Recovery
Heat pump(s) solution
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
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 15 Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 15
HEAT PUMPS FOR DATA CENTRES
Cooling & Heat Recovery
Heat pump(s) solution
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℃
+
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 16 Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 16
HEAT PUMPS FOR DATA CENTRES
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?
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 17 Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 17
HEAT PUMPS FOR DATA CENTRES
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
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 18 Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 18
HEAT PUMPS FOR DATA CENTRES
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
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 19
HEAT PUMPS FOR DATA CENTRES
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
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 20
HEAT PUMPS FOR DATA CENTRES
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
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 21
HEAT PUMPS FOR DATA CENTRES
Data centers as a heat source
RECOVER, REDISTRIBUTE & REUSE HEAT
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 22 Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 22
HEAT PUMPS FOR DATA CENTRES
‘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
Friday, January 16, 2015 PROPRIETARY and CONFIDENTIAL 23
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