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TRANSCRIPT
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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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