Welcome to MHI Centrifugal Chiller Technical Seminar ASHRAE 20170928.pdf · PT. ASAHIMAS CHEMICAL,...

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


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


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.


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


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


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


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)


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


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


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


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


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 ）


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


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


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)


Load

ＩＰＬＶ (Integrated Part Load Value)

(ETI-Z50)

Highperformance

AHRI Standard550/590[I-P]2011

ETI-Z : Capability & Performance(3)

11.2


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


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 ）


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)


MTHSS009,1707(R0）

GART-ZE & ZEI: Specification

28

【APPENDIX】R134a

Projects References


Application

Semiconductor industry

Clean Room

Sports facility

Automotiveindustry

Building

Shopping Center

Chemical・Food industry

Office・Hotel・Hospital

Data CenterDistrict Cooling


PT. ASAHIMAS CHEMICAL, Indonesia

Factory

350 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.


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.


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.


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


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


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.


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


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


MINATO MIRAI 21(YOKOHAMA), Japan

Our Chillers are installed in MM21 area where “Land Mark Tower” and “Queens Square” are located.

ＣｏｎｓｔａｎｔＳｐｅｅｄ

2080 ＲＴ＊ 2 ｕｎｉｔｓ





ＶａｒｉａｂｌｅＳｐｅｅｄ


Total 41,560 RT

ＣｏｎｓｔａｎｔＳｐｅｅｄ






ＶａｒｉａｂｌｅＳｐｅｅｄ


Total 41,560 RT

D.H.C.


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


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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