Introduction of Panasonic CO2 refrigeration system. Panasonic Corporation Refrigeration and Air-Conditioning Devices Business Division
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1 Introduction of Panasonic CO2 refrigeration system Panasonic Corporation Refrigeration and Air-Conditioning Devices Business Division
2 Compressor New Model Outdoor Small Size CO2 Refrigeration Unit CO2 Refrigeration Unit (2HP ) Spec. MODEL Rated Output Rated Electricity (primary) Refrigerant OCU-CR200VF 1.6 kw 3Ph 200V 50Hz / 60Hz R744 (carbon dioxide) Ambient Temperature -15 ~ +43 Evaporating Temperature Designed Pressure Airtight Testing Pressure -45 ~ -5 High:12MPa / Low: 8MPa High: 8MPa / Low: 8MPa Type Drive System 2-stage compression mechanism (High pressure in the compressor case) DC Inverter Dimensions (W x D x H) Weight 900 x 350 x 930 mm 67 kg
3 Compressor New Model Outdoor Medium Size CO2 Refrigeration Unit CO2 Refrigeration Unit (10 HP ) Spec. MODEL Rated Output Rated Electricity (primary) Refrigerant OCU-CR1001VF 7.3 kw 3Ph 200V 50 / 60Hz R744 (carbon dioxide) Ambient Temperature -15 ~ +43 Evaporating Temperature Designed Pressure Airtight Testing Pressure -45 ~ -5 High:12MPa / Low: 8MPa High: 8MPa / Low: 8MPa Type Drive System 2-stage compression mechanism (Intermediate pressure in the compressor case) DC Inverter Dimensions (W x D x H) Weight 890 x 890 x 1856 mm 310 kg
4 Compressor New Model Outdoor Medium Size CO2 Refrigeration Unit CO2 Refrigeration Unit (10 HP Side Flow ) Spec. MODEL Rated Output Rated Electricity (primary) Refrigerant OCU-CR1000VF 7.3 kw 3Ph 200V 50 / 60Hz R744 (carbon dioxide) Ambient Temperature -15 ~ +43 Evaporating Temperature Designed Pressure Airtight Testing Pressure -20 ~ -5 High:12MPa / Low: 8MPa High: 8MPa / Low: 8MPa Type Drive System 2-stage compression mechanism (Intermediate pressure in the compressor case) DC Inverter Dimensions (W x D x H) Weight 1350 x 586 x 1260 mm 265 kg
5 Solutions -Development of Pressure adjust control Comparison of the annual operating pressure behavior Present model Spring Summer Autumn Winter 5MPa ~9MPa Pressure to showcase fluctuate 5MPa~9MPa with the season. Airtight examination pressure of the construction plumbing 12MPa. Pressure adjust control type New model Spring Summer Autumn Winter Pressure to showcase is controlled constant about 6MPa in all season. The necessary refrigerant quantity in a refrigerating cycle is stable in all season. Airtight examination pressure of the construction plumbing 8MPa.
6 Pressure (MPa) CO 2 refrigeration system covers environmentally friendly small format stores Convenience Store, Sales Floor Area: 150m 2 Outdoor Unit 10HP (Refrigerator) 2HP (Freezer) Showcase Open Showcase (Total width 28 feet) Desert Showcase Walk-in Refrigerator (6 or 7 doors) Desert Case Reach-in Freezer (2 or 3 doors) Open Showcase Desert Showcase Walk-in Refrigerator 10HP Unit 2HP Unit Master Controller Controller Reach-in Freezer Reach-in Freezer Key Technologies Split Heat Exchanger HP Motor Compressor Mechanism (HP Shell type) Shell LP 2HP S S AIR Gas Cooler Refrigerant Reserve Tank Split Cycle MP Compressor Inter Cooler Oil Cooler Enthalpy (kj/kg) Oil Separator
7 Benefit Reduce Energy Consumption The actual installed example in the Kyushu region * 12.9%-18.2%, 6 stores on Average
8 Benefit Reduce Energy Consumption The actual installed example in the Kansai region * 17.4%-32.2%, 6 stores on Average
9 Annual CO2 emission Benefit Reduce CO2 Emission Direct influence of CO 2 refrigerant almost zero Comparison of R404A and CO 2 Refrigeration Unit 400 Direct influence Indirect influence R404A R404A Freezer Temperature Refrigerator Temperature R404A CO 2 Freezer temperature CO 2 Refrigerator temperature CO 2 Total 71% 65% Annual CO 2 emission 67% reduction
10 Field Test performed in Denmark Randers
11 Field Test performed in Denmark Freezer Installation Cold Room Size room 4.0m x 4.5m x 2.4m Size room 4.0m x 4.5m x 2.4m Freezer for low temperature. Capacity need 2 x 2HP units. Cold room for medium temperature. Capacity needed 1 x 2HP unit. -20 degree degree
12 Field Test performed in Denmark
13 Field Test performed in Denmark
14
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