welcome to mhi centrifugal chiller technical seminar ashrae 20170928.pdf · pt. asahimas chemical,...
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1© 2016 MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. All Rights Reserved.
Welcome toMHI Centrifugal
ChillerTechnicalSeminar
28-September, 2017
2
HirotakaTanimura
Engineering SectionChiller & Heat Pump Engineering Dept.
MTH, Japan
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Presentation Contents
1.International Trend of Refrigerant Restriction
2.Development of HFO chiller
3.New Refrigerant Chiller“ETI-Z & GART-ZE”
4
International TrendOf
Refrigerant Restriction
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1
0 1 10 100 1000
0.001
0.1
0.01
104
0
105
10CFC
CFC12
CFC502GWP 4510ODP 0.18
GWP 8500ODP 1
HCFC22
HCFC-123
HCFC GWP 1760ODP 0.034
GWP 79ODP 0.012
HFO/Natural Refrigerant
CO2 /HFO-1233zd
HFO-1234yf/HFO-1234ze
GWP 1ODP 0
GWP<1ODP 0
HFC-245fa
HFC
GWP 858ODP 0
GWP 1300ODP 0
HFC-134a
Global Warming Potential (GWP)
Alternative(Montreal Protocol
in 1987)
Ozo
ne D
eple
tion
Pote
ntia
l (O
DP)
Alternative(Paris Agreement (COP21) in 2015)
Alternative(Kyoto Protocol
in 1997)
International Trend of Refrigerant Restriction
Strengthening of measurement for prevention from global warming to protect the ozone layer.Shifting from the low ODP refrigerant HCFC and HFC to the low GWP HFO and natural refrigerants.
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Applied Country
All the countriesof the worldThe temperature increase shall be less than 1.5°C, compared from the temperature before the Industrial Revolution.
Every country shall update and submit the own country’s reduction goal every 5 years (to the administrative authority). The information shall be reviewed
maintain and strengthen the gas-absorbing sources such as forests.
Development of technology for low greenhouse gas emission
World Trend of Refrigerant Restriction:Paris Agreement (COP21: December, 2015)
Major Contents
Main Countermeasure
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Mandatory of the HFC production and the step-by-step reduction
To introduce
the HFC refrigerant
as an alternative
low ODP refrigerant.
The shift to non-fluorocarbon natural refrigerant
is accelerated.
Reason
All the countries of the world
Climate Change(global warming)
GWP is high.
Applied Country
Major Contents
HFC ReductionSchedule
(toward each country’s standard value)
World Trend of Refrigerant Restriction:Montreal Protocol “Kigali Revision” (October, 2016)
IndonesiaGroup 1
Reason
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November, 2016Preparation & enforcement of the
High Pressure Gas Safety Act
The need for chillers using the low GWP refrigerant is growing
(in the market of developed countries such as Japan, Europe, and the United States).
The need for chillers using the low GWP refrigerant is growing
(in the market of developed countries such as Japan, Europe, and the United States).
To prevent the global warming
ReasonUP
Need for measurement against fluorocarbons
April, 2015Enforcement of the Act on Rational Use and
Proper Management of Fluorocarbons
Trend in Japan
Trend of Refrigerant Restriction (Japan):Need for Chillers Using Low GWP Refrigerant
9
Development of HFO chillers
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Product Line
Cover a wide cooling capacity range by Low GWP Refrigerant Chiller
150 350 700
HFC-134a Variable
(Bilt in Inverter)
230 550
HFC-134a Constant
Variable
400
150 350 700 HFO-1233zd Variable
(Bilt in Inverter)
300
HFO-1234ze Constant
Variable
GART-PL / PLI
GART-ZE/ZEI GART-ZE.PL/PLI
E TI-Z
E TI
2700
GART-R/P
6000
3000 5400
2500 5000
Low GWP Refrigerant
AART/AART-I GART/GART-I
700 1000 2000 3000 4000 5000100 200 300 400 500 600
(e)
(e)
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Comparison of refrigerant (1)
*1: IPCC 5th report (2013) *2: The 2000 UNEP handbook *3: HCFC is scheduled to be completely abolished in 2020.*4: Two-stage compression two-stage expansion refrigerating cycle, evaporation temperature 6.2˚C, condensing temperature 37.7˚C , sub-cool temperature 4˚C, heat-insulation efficiency of the compressor 90% *5 “Low-flammable refrigerant” : HFO 1234ze(E) refrigerant is classified this category A2L in ASHRAE.
Refrigerant HFO isshort atmospheric lifetime
and low GWP.Theoretical COP is same level as
existing refregerant
HCFC123
HCFC22
HFC134a
HFO1233zd(E)
HFO1234ze(E)
Global warming potential (GWP) *1 79 1760 1300 1 <1Ozone depletion potential (ODP) *2 0.012 0.034 0 0 0
Flammability Nonflammable
Nonflammable
Nonflammable
Nonflammable
Lowflammable
Toxicity (allowable concentration [ppm]) B1(50) A1(1000) A1(1000) A1(800) A2L(1000)
Atmospheric lifetime 1.4 years 11.9 years 13.8 years 26 days 16.4 daysTheoretical COP 7.61 7.22 7.33 7.57 7.39
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①COP of 1233zd(E) is better.②Vapor volume of 1233zd(E) is larger.
Refrigerant HFC HFO134a 1234ze(E) 1233zd(E)
Standard boiling point [ ] −26.1 −19.0 18.3
Saturated pressure (@6 )[kPaG] 260.7 167.3 −39.1
Saturated pressure (@38 )[kPaG] 861.9 624.3 100.8
Saturated vapor specific volume (@6 )[m3/kg]
0.056 0.069 0.277
Theoretical COP 7.33 7.39 7.57
Comparison of refrigerant (2) Comparison of Refrigerant
R-1234ze(E)’s physical propertiesare similar to R-134a.
①
②
Chiller Outline is larger.・Analysis for Compact design ・Apply 1234ze(E) for large capacity
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Compressor
Impeller
Inlet guide vane
Path of refrigerant gas
Ref. inlet
Ref. outletReduceto 140%
comparedwith R-134a
Development for compact design of 1233zd chiller(1)
①CFD analysis for impeller, inlet guide vane, path form
②Employment of high-speed motor direct connection type compressor
pImproved
performance pDownsizing of Compressor
Reduction in energy losscaused by driving Simplification of the structure
Change to single shaft
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Heat Exchanger (Evaporator and condenser)
Evaporator Condenser
Development for compact design of 1233zd chiller(2)
Inlet
Chilled water
Ref. outlet
Ref. inlet
Outlet
Inlet
Cooling water
Ref. outletRef. inlet
Outlet
①Analysis for pressure situation inside heat exchanger
②Analysis for gas flow inside heat exchanger
High efficiency Compact design
15
New RefrigerantChiller
“ETI-Z & GART-ZE”
HFO-1233zd(E) Refrigerant
Global
Warming
Potential 1Approved by Japanese Government
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Cooling Capacity : 150RT to 700RT
ETI-Z20,Z30, 200RT
6.7AHRI Rated COP
JIS Part load performance
IPLV 9.1
Cooling water entering 12°C
25.5Max. COP at part load
AHRI Part load performance
IPLV 11.2
0.52kW/RT
0.14kW/RT
ETI-Z : Performance
ETI-Z50
ETI-Z50ETI-Z50
max.COPat part lard
7.3(28 )
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An inverter and a chiller body are integrated, which follows the compactness of the current ETI series.
EvaporatorEvaporator
Control PanelControl Panel
CondenserCondenser
EconomizerEconomizerLubricating Oil Unit(Oil Tank, Filter, Oil Cooler)Lubricating Oil Unit(Oil Tank, Filter, Oil Cooler)
CompressorCompressor
MotorMotor
InverterInverter
ETI-Z : Appearance
Built in Inverter model SpaceSaving
Sub-coolerInside CondenserSub-coolerInside Condenser
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ETI-Z: Specification
Power voltage 380V to 440 VHz free The performance and capability
is same for both 50Hz/60Hz regions.
One-compressor type 150 RT to 400RT, ETI – Z15, Z20, Z25, Z30, Z35
Two-compressor type 400 RT to 700RT, ETI– Z40, Z50, Z60, Z70
H H
LxWxH: 3.8x1.6x1.7m at 150 to 250RtLxWxH: 3.9x1.8x2.0m at 250 to 400Rt
LxWxH: 4.4x2.0x2.2m at 400 to 500RtLxWxH: 4.3x2.1x2.2m at 500 to 700Rt
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Standard continuous load range: 100% to 10%
(Optionally capable of having an extreme low load range
of down to approx 0%)
200RT,
6.7Rated COP (AHRI)
6.63(ETI-20) (ETI-Z 20, Z30)
ETI-Z : Capability & Performance ※
Confidential
(0.53kW/RT) (0.52kW/RT)
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Load
IPLV (Integrated Part Load Value)
(ETI-Z50)
Highperformance
AHRI Standard550/590[I-P]2011
ETI-Z : Capability & Performance(3)
11.2
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MACS082,1610(2.0)R4
Chilled water 12°C/7°C, Cooling water 32°C/37°CETI- Z15 Z20 Z25 Z27 Z30 Z35 Z40 Z50 Z55 Z60 Z70
RT 150 200 250 250 300 350 400 500 500 600 700
kW 527 703 879 879 1055 1231 1407 1758 1758 2110 2461
Motor output kW 76 99 139 124 148 189 197 278 247 296 381
Flow rate m3/h 90.7 121.0 151.2 151.2 181.4 211.7 241.9 302.4 302.4 362.0 422.3
No. of pass - 2 2 2 2 2 2 2 2 2 2 2
Pressure drop kPa 24 40 58 31 42 55 57 85 47 64 84
Pipe size A 150 150 150 150 150 150 200 200 250 250 250
Flow rate m3/h 105.2 139.6 177.4 174.6 209.5 247.6 279.1 354.7 349.2 419.0 496.1
No. of pass - 2 2 2 2 2 2 2 2 2 2 2
Pressure drop kPa 26 42 64 31 42 56 67 103 48 67 90
Pipe size A 150 150 150 200 200 200 200 200 250 250 250
Insulation area m2 15.9 15.9 15.9 19.1 19.1 19.1 26.8 26.8 33.1 33.1 33.1
Power source -
ETI- Z15 Z20 Z25 Z27 Z30 Z35 Z40 Z50 Z55 Z60 Z70
Length (L) m
Width (W) m
Height (H) m
Shipping weight t
Operation weight t
Cooling capacity
Chi
lled
wat
erC
oolin
g w
ater
Model
License of refrigeration safety
Three-phase 380 to 440 V (50/60Hz free)
Not required
Model
Chi
ller
3.8
1.6
1.7
4.3
5.1
3.9
1.8
2.0
6.1
5.0
4.4
2.0
2.2
7.2
8.8
4.3
2.1
2.2
8.5
10.7
ETI-Z : Specification
HFO-1234ze(E) RefrigerantGlobal
Warming
Potential < 1Approved by Japanese Government
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Cooling Capacity : 300RT to 5000RT
Constant speed chiller: GART-ZE series, Variable speed chiller : GART-ZEI series
More High Performance & Comact
Increased Cooling Capacity
GART-ZE & ZEI:Performance
6.9AHRI Rated COP
(GART-ZE250I chilled water 12 /7 )
24.0Max. COP at part load
Constant speed chiller
Variable Speed Driven chiller
(GART-ZE250I)
(0.51kW/RT)
(0.15kW/RT)
max.COPat part lard
7.5(28 )
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CompressorMotor
Condenser
Circuit BoxSub-coolerEconomizer
Evaporator
Control Panel
Cooling Water Inlet
Cooling Water Outlet
Chilled Water Outlet
Chilled Water Inlet
In addition to the downsizing of the components, the upper and lower clearances are utilized at the maximum for arrangement. Then, the volume efficiency is improved.Installation area and space volume are reduced.
Circuit Boxinstalled under the lower part of condenser
to prevent the hindrance in shipping.
Control PanelExtracted the parts required for operation and maintenance.Easy to rearrangement by downsizing.
GART-ZE & ZEI: Appearance / Composition (Downsizing)
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MTHSS009,1707(R0)
GART-ZE & ZEI: Specification
28
【APPENDIX】R134a
Projects References
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Application
Semiconductor industry
Clean Room
Sports facility
Automotiveindustry
Building
Shopping Center
Chemical・Food industry
Office・Hotel・Hospital
Data CenterDistrict Cooling
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PT. ASAHIMAS CHEMICAL, Indonesia
Factory
350 RT * 1 unit
299 RT * 1 unit
350 RT * 1 unit
299 RT * 1 unit
PT. Asahimas Chemical (ASC) is a multinational company headquartered in Jakarta, whose operation in Cilegon, West Java, began in 1989.
We delivered centrifugal chillers to their production process that needs strict temperature control.
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Madinah Urban Development Project, Saudi Arabia
Variable Speed
80units, Total 200,000 RT
Variable Speed
80units, Total 200,000 RT
Madinah(Medina) Hajj City
supply chilled water to an area of 1.6million m2
D.H.C.
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Marina Bay New Down Town, Singapore
853 RT * 1units , 2000 RT*2units
2844 RT *11units , 3697 RT*2units
Total 43,531RT
853 RT * 1units , 2000 RT*2units
2844 RT *11units , 3697 RT*2units
Total 43,531RT
16 units
Copyright © PIXTA
D.H.C.
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KLCC, Malaysia
Name of Project :KLCC DISTRICT COOLING CENTRE
Location :Kuala Lumpur City Centre
In Operation From:September, 2014(Partially operated since 2013)
Plant/Products : AART-280HPL 13 units Centrifugal Chiller
写真(サンプル)
Total Cooling Capacity of 36,400RT is supplied for Kuala Lumpur City Centre Area
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Kuala Lumpur International Airport 2, Malaysia
Name of Project :KLIA 2
Location :KLIA 2 at KL International Airport,SepangSelangor
In Operation From : May, 2014
Plant/Products : AART-200 6 units Centrifugal Chiller
写真(サンプル)
Total Cooling Capacity of 12,000RT is supplied for Kuala Lumpur International Airport
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Amari Watergate Bangkok, Thailand
Hotel
400 RT*2 units400 RT*2 units
Amari Watergate Bangkok is a luxury 5 star hotel located in center of Bangkok.
New Energy and Industrial Technology Development Organization (NEDO) carried out energy saving model project utilizing Japanese energy conservation technologies.
MHI centrifugal chillers were adopted as air conditioning system and achieved significant energy reduction.
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Raffles City Chongqing, China
Copyright © PIXTA
Chiller Capacity 2500 RT x 4 units (GART-250P)
840 RT x 4 units (GART-80PI) Total 13,360 RT
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Kansai International Airport(KIX), JapanKIX has central and south plant to cover heat demand for its facilities inside airport. Central plant is covering heat source for administration area as well as passenger terminals. Our centrifugal chillers are carrying on chilled water supply for this international airport 24 hours per day.
Passenger Terminal Hotel Office
Chiller Capacity 1100 RT x 1 unit (AART-145H, Low temperature use)
1200 RT x 1 unit (AART-100I, variable speed drive)
2000 RT x 2 units (AART-200)
Total 6,300 RTCentral Plant
Heat Supply Plant
South Plant
MaintenanceArea
Supply Area of Central PlantSupply Area of South Plant
International CargoArea
AdministrationArea
Waste Disposal Area
Passenger Terminal
Second Phase Area
Access Bridge
Chilled Water ・ Steam
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MINATO MIRAI 21(YOKOHAMA), Japan
Our Chillers are installed in MM21 area where “Land Mark Tower” and “Queens Square” are located.
Constant Speed
2080 RT * 2 units
3000 RT * 5 units
4000 RT * 1 unit
5000 RT * 1 unit
8000 RT * 1 unit
Variable Speed
5400 RT * 1 unit
Total 41,560 RT
Constant Speed
2080 RT * 2 units
3000 RT * 5 units
4000 RT * 1 unit
5000 RT * 1 unit
8000 RT * 1 unit
Variable Speed
5400 RT * 1 unit
Total 41,560 RT
D.H.C.
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AEON Mall Tsurumi Ryokuchi, Japan, Osaka
Variable Speed 700 RT *1 unit
390 RT(600RT) * 2 units for thermal storage
Variable Speed 700 RT *1 unit
390 RT(600RT) * 2 units for thermal storage
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AEON LAKE TOWN KAZE, Japan
504 RT( 740RT) * 1 unit for thermal storage
750 RT(1100RT) * 1 unit for thermal storage
504 RT( 740RT) * 1 unit for thermal storage
750 RT(1100RT) * 1 unit for thermal storage
41
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