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45th HVAC&R CONGRES AND EXHIBITION :IMPROVING ENERGY EFFICIENCY IN CLIMATE AND OZONE FRIENDLY LATEST REFRIGERATION TECHNOLOGIES

3 – 5 . XII 2014 . Beograd, Srbija

kongres

MAYEKAWA

Presented by Hideyo Asano, MAYEKAWA

NATURAL REFRIGERANTSActual Energy Conservation by using NewTon “ NH3/CO2” in Cold Storage and FreezerPresentation by : Hideyo AsanoAuthor : Jan Boone, Hideyo Asano

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DOC.2014-678 R.0 3

1.1. Comparison of Refrigeration CycleComparison of Refrigeration Cycle2.2. Feature of NewTonFeature of NewTon3.3. Energy conservation in Cold StorageEnergy conservation in Cold Storage4.4. Energy conservation in FreezerEnergy conservation in Freezer5.5. Ice Skate RinkIce Skate Rink6.6. ConclusionsConclusions

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1.1. 　 　 Comparison of Refrigeration CycleComparison of Refrigeration Cycle

1-1. Ideal Refrigeration Cycle1-1. Ideal Refrigeration Cycle1-2. Comparison of theoretical 1-2. Comparison of theoretical C.O.P.C.O.P.

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1-1. Ideal Refrigeration Cycle1-1. Ideal Refrigeration Cycle

Single Stage compression Tow Stage compression Cascade Refrigeration

p-h chart

Flowdiagram

COP

h

1

23

4

h3,h4

p

h1 h2

1

2

3

4

h4,h3 h

p5

6

h1 h5 h2 h6

GM

GL1

23

4

h3,h4 h

p

5

67

8

h7,h8

h1 h5 h2 h6

GL

GH

41

23

ExpansionValve

Condenser

Evaporator

Compressor

41

6 3

Condenser

Evaporator

ExpansionValve

High StageCompressor

Inter Cooler

5

2

ExpansionValveBooster

Compressor1

6

3

ExpansionValve

Condenser

Evaporator

High SideCompressor 8

2CascadeCondenser

4

7

5

Low SideCompressor

ExpansionValve

COP

1241hhhhCOP

−−=

)0.1()56)(()12(

)41(

=−++−

−=

GLhhGMGLhhGL

hhGLCOP

)0.1()56()12(

)41(

=−+−

−=

GLhHGHhhGL

hhGLCOP

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1-2. Comparison of theoretical COP1-2. Comparison of theoretical COP

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2.2. 　 　 Feature of NewTonFeature of NewTon

2-1. Basic Concept of2-1. Basic Concept of NewTon NewTon2-2. NH3 New Screw Compressor2-2. NH3 New Screw Compressor2-3. High Efficiency Motor2-3. High Efficiency Motor （（ IPM motorIPM motor ））2-4. New rotor profile and Double economizer system 2-4. New rotor profile and Double economizer system 2-5. NewTon Cycle Flow2-5. NewTon Cycle Flow2-6. NewTon Lineup2-6. NewTon Lineup

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Evap.

NH3

Cond.

Water CO2

Out door NewTon Cold StorageCooler

CT

NHNH33 Package Package　・ New Screw compressor

　・ Semi-hermetic IPM motor

　・ Flooded Evaporator

　・ Double economizer

　・ Automatic operation

COCO22 brine brine　・ Safety

　・ Low pump power

　・ No trouble by oil

　・ High heat transfer

Water cooledWater cooled　・ Energy saving

　・ NH3 charge min.

　・ Free layout

　・ Easy Maintenance

「「 SafetySafety 」　「」　「 Energy savingEnergy saving 」　「」　「 Easy Easy maintenancemaintenance 」　」　

2-1. Basic Concept of2-1. Basic Concept of NewTon NewTon

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2-2. NH2-2. NH33 New Screw Compressor New Screw Compressor

Two stage compound Screw

Semi-hermetic IPM Motor

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2-3. High Efficiency Motor2-3. High Efficiency Motor （（ IPM motorIPM motor ））- Semi-Hermetic for NH3 -- Semi-Hermetic for NH3 -

Conventional IPM motor 回転子

Benefits of IPM motor

５～１０％ ・　 better in efficiency

・　 40% smaller in size

・　 High speed is possible

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2-4. New rotor profile and Double economizer system 2-4. New rotor profile and Double economizer system Booster High stage

CondenserEvap.

Inter coolerBooster Economizer

Double Economizer

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New Rotor-Profile

S＆ T

S＆ P

NH3 liquid

NH3 gas

CO2 liquid

CO2 gas

NH3 liquid

NH3 gas

CO2 gas

CO2 　liquid

High Performance HEX

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Low P&T Gas

Low T Liquid

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[Compressor][Compressor]

Oil Separator

High P&T Gas and Oil

High Pressure gas

[Condenser][Condenser]

High P Liquid

Inter CoolerEconomizerBooster

[Evaporator][Evaporator]

CO2 Liquid

CO2 Gas

Low P&T Gas

Low T Liquid

2-5. NewTon Cycle Flow

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Use Model Remarks

Cold Storage

-25C NewTon R-3000, R-6000, R-8000 RT : -25℃

0 C NewTon C platform

Freezer NewTon F-300, F-600, F-800 RT:-35℃

Skate Rink NewTon S

2-6 2-6 NewTon NewTon LineupLineup

NewTon R-3000, NewTon F-300 　　　　　　　　　　　 NewTon C, NewTon S

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３３ .. 　 　 Energy conservation in Cold Energy conservation in Cold StorageStorage

3-1 　 Main Installations3-2 　 S.P.C. of Cold Storage3-3 　 Power Reduction through Renewal3-4 　 Sample of Renewal

3-1 　 Main Installations of NewTonCustomer Tonnage Nr. of Newton Installed

Nissui Logistics / Kawasaki 14,000 ３ 2008Toyo Suisan / Nagoya 32,000 ９ 2009Housui / Atsugi 8,000 ２ 2010Yokohama Ritou / Osaka 27,000 ８ 2011Coop / Onomichi 30,000 ８ 2012Matsuoka / Kawasaki 80,000 １１ 2012Nichirei Logistics / Kawasaki (40,000) １ 2013Maruha-Nichiro / Kawasaki 30,000 6 2014QP Logistics / Tokorozawa 18,000 7 2014

Nissui Log. / Kawasaki 　　　　　　　　　　　 Toyo Suisan / Nagoya 　　　 　 　　 Yokorei / osaka 　　　　　　　　　　　　　 Coop / Onomichi

Matsuoka / Kawasaki 　　　　　 　 Nichirei Log. / Kawasaki Maruha-Nichiro / Kawasaki 　　　　　　　　 QP Log. / Tokorozawa

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3-2 Specific Power Consumption in Cold Storage3-2 Specific Power Consumption in Cold Storage

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CustomerVolume Age Refrigerant formerly

usedPower

reduction

(m3) (year) Refrig. Comp. (%)

Tokyo Toyomi 45,000 29 HCFC-22 Screw 31.1

Niigata Reizo 10,000 33 HCFC-22 Recip. 41.2

QP “Kewpie” 16,250 27 HCFC-22 Recip. 24.9

Sensui Reizo 6,125 38 HCFC-22 Screw 29.3

Ajinomoto 7,500 25 HCFC-22 Recip. 28.0

Gliko 30,000 30 HCFC-22 Screw 19.8

Showa Reizo 32,500 22 HCFC-22 Recip. 28.0

AMB Funabashi 30,000 25 NH3/Brine Recip. 34.0

3-3 Power reduction through renewal with NewTon3-3 Power reduction through renewal with NewTon

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F1610C-8setsF1610C-8sets

HCFC-22 DXHCFC-22 DX

NewTonNewTon 3000-8stes 3000-8stes

NH3/CO2NH3/CO2

3-4 Tokyo Toyomi Reizo (Funabashi) “Renewal”3-4 Tokyo Toyomi Reizo (Funabashi) “Renewal”

Storage volume ： 45,000 m3

(average reduction -31.1%)

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４４ .. 　 　 Energy conservation in FreezerEnergy conservation in Freezer

4-1 　 Bread dough4-2 　 Farm Products

2020

4-14-1 　　 Bread DoughBread Dough “　／　“　／　 Renewal”Renewal”Customer Kobeya Baking Co.,Ltd. / Chiba FactoryProduct Bread Dough

Previous NewFreezer Type Spiral Spiral

Compressor Type F1612C NewTon F600Main Motor 130kW 90kW

Cooling Method HCFC-22 　 DX NH3/CO2 　 L.P.

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・　 Average power reduction of compressor was 38%

4-14-1 　　 Bread DoughBread Dough “　／　“　／　 Renewal”Renewal”Customer Kobeya Baking Co.,Ltd. / Chiba FactoryProduct Bread Dough

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4-24-2 　　 Farm ProductFarm Product ”／”／ Extension”Extension”

Customer Hokkaido FoodsProduct Dice Potato

Existing NewFreezer Type IQF IQF

Compressor Type F2016LSC 　 x 　 2 NewTon 　 F600 　 x 　 3Main Motor 360kW 270 kW

Cooling Method HCFC-22 　 L.P. NH3/CO2 　 L.P.

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Dice PotatoExisting 　　　　

　　（ F2016LSC)

New 　　　　　　（ NewTon) Reduction

(mm) (kWH/ton) (kWH/ton) ( % )4.8x4.8x4.8 200.0 133.5 3310x10x10 146.2 109.0 2515x15x15 174.9 122.1 3015x15x10 259.6 110.7 57

・　 Power reduction of compressor was 25~57% 　

Comparison of Specific Power Consumption(kWH/ton)

4-24-2 　　 Farm ProductFarm Product ”／”／ Extension”Extension”

Customer Hokkaido Foods Co.,Ltd.Product Dice Potato

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５５ .. 　　 Ice Skate RinkIce Skate Rink

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5.5. 　　 Ice Skate RinkIce Skate Rink 　　　　Customer Hyogo Nishinomiya Ice Arena

Use Ice Skate Rink

Hyogo Nishinomiya Ice Arena Moriguchi Sport CentreSize of Rink 　 2,100 (m2) 　 1,456 (m2)

Machine NewTon ｰ S 　 3 BCL 　 2Motor Power 195 (kW) 180 (kW)

Cooling Method NH3/CO2 L.P. HCFC-22/Brine

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Comparison of power consumption data

＊ Specific power consumption of NewTon was half of HCFC-22.＊ Power consumption was total data, including compressors, pumps, funs, lights and air conditioning etc.

5.5. 　 　 Ice Skate Rink Ice Skate Rink 　　

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6.6. 　　 ConclusionsConclusions

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　　 ConclusionsConclusions

　 Energy conservation by using NewTon was confirmed as below;

１． Totally 25 to 30% reduction in cold storage２． 25 to 50% reduction in freezer３． Totally 40 to 50% reduction in ice skate rink

　 Reasons of these huge energy conservation are as below;

A 　 Super high energy efficiency of compressor, motor, heat exchanger etc.B 　 Higher energy efficiency at part load conditionC 　 Flexible operation to meet various conditionsD 　 Stable operating condition of ammonia cycle

Thank you very much!

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