Introduction of energy savings by CO2 refrigeration systems in SM/CVS. Feb. 3 rd 2014 Panasonic Corporation Air-Conditioner Division Gaku Shimada

Transcription

1 Introduction of energy savings by CO2 refrigeration systems in SM/CVS Feb. 3 rd 214 Panasonic Corporation Air-Conditioner Division Gaku Shimada

2 AGENDA 1. CO2 Compressor and Application Roadmap 2. Introduction of CO2 system for CVS and SM 3. Actual Installation and Monitored Energy Saving Data 4. Issues and Future action

3 1. CO2 Compressor and Application Road Map From 3W to 7,5W(1HP) Compressor and Heating / Cooling applications Heating Domestic Heat Pump Water Heater Heat Pump for Space Heating Commercial Water Heater 33F Heating and Cooling Combined Products 2F CO 2 Compressor Technologies 15F Commercial Refrigerators and Freezers Light Commercial Bottle Coolers Refrigeration

4 AGENDA 1. CO2 Compressor and Application Roadmap 2. Introduction of CO2 system for CVS and SM 3. Actual Installation and Monitored Energy Saving Data 4. Issues and Future action

5 Pressure (MPa) 2-1. CO2 System for Convenience Store (CVS) Multi-Deck Cases Walk-in Case 1.5kW Outdoor Unit (CO 2 ) Layout image Reach-in Freezer Desert Case Master Controller 1HP Outdoor Unit (CO 2 ) Key Technologies HP MP Motor Compressor Mechanism (HP Shell type) Shell LP 2HP S S Compressor Split Heat Exchanger AIR Gas Cooler Inter Cooler Oil Cooler Refrigerant Reserve Tank Oil Separator Split Cycle Enthalpy (kj/kg)

6 Pressure (MPa) 2-2. CO2 System for Supermarket (SM) Reach-in Freezer Master Controller Multi-Deck Super Show-Cases Layout image Island Freezers Key Technologies Refrigerator Internal HX for Split cycle 1HP, 2HP Outdoor Unit (CO 2 ) HP Compressor Mechanism (MP Shell type) Motor Shell LP 1HP S AIR Gas Cooler S Reserve Tank 14 Split Cycle Inter Cooler 1 Oil Cooler 8 6 MP Compressor Compressor Oil Separator Enthalpy (kj/kg)

7 AGENDA 1. CO2 Compressor and Application Roadmap 2. Introduction of CO2 system for CVS and SM 3. Actual Installation and Monitored Energy Saving Data 4. Issues and Future action

8 3-1. Actual Installation in Japan (Dec. 213) After the collaborative verification of system performance with key accounts and government, mass production started in 21. As of today, 45 CO2 units were installed in 145 locations, From subarctic Hokkaido ( 北海道 ) to subtropics Okinawa ( 沖縄 ), From CVS to Hypermarket including Distribution Center. Number of installed CO2 outdoor units Estimation Actual Hokkaido: Tohoku: 2 Kyusyu: 15 (incl. Okinawa: 1) Chugoku/ Shikoku: 15 Kansai: 17 Chubu: 17 Kanto: 54 Number of Stores with CO2 units

9 Energy Consumption (kwh / Month) Energy Consumption (kwh / Month) Energy Consumption (kwh / Month) Energy Consumption (kwh / Month) 3-2. Monitored Energy Consumption Data (CVS and SM) 6, 5, 4, 3, 2, 1, CVS Miyagi Annual Ave. Temp.: 12.2 (C) Jan. Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Energy Saving 26% Ambient temp. (C) CO2 HFC Ambient Annual Energy Saving 21% 6, 5, 4, 3, 2, 1, SM Chiba Annual Ave. Temp.: 2.9 (C) (May-Dec) Ambient temp. (C) Jan. Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 6, 5, 4, 3, 2, 1, CVS Okinawa Annual Ave. Temp.: 23.6 (C) Jan. Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Energy Saving 1% Ambient temp. (C) CO2 HFC Ambient CO2 HFC Ambient Annual Energy Saving 19% 6, 5, 4, 3, 2, 1, 1 CO2 unit energy consumption is fairly compared with simulated data of Panasonic HFC unit. SM Aichi Annual Ave. Temp.: 16. (C) Jan. Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ambient temp. (C) C H A

10 AGENDA 1. CO2 Compressor and Application Roadmap 2. Introduction of CO2 system for CVS and SM 3. Actual Installation and Monitored Energy Saving Data 4. Issues and Future action

11 4-1. Issues of CO2 units and our Future Action 1. Acquisition Cost Reduction System Design simplification, Piping materials (tube and fittings) standardization and availability / access improvement. The reduction of cycles per store will also reduce the total cost. (High Pressure Gas Safety Law need to be amended for CO2.) 2. Product Improvement Efficiency, Noise, and Vibration can be further improved. Product Line-up need to be improved. Indoor units to be diversified and Outdoor units to be standardized. 3. Training of Installers Trainings for CO2 are indispensable. (Installation, Operation check, and Service Maintenance) Original Manual was prepared and Training courses were held. FY21 FY211 FY212 FY213 # of Trainee (25) More than 65 people already took CO2 training course as of Dec. 213

12 4-2. Issues of CO2 units and our Future Action In order to expand the use of CO2 refrigerant for Commercial Refrigeration Sector in Japan, Cooperative actions in different levels of industry Stake holders are required. Government Promotion and Restriction clarification Users Initiatives and commitment Installers Skill and Motivation Contractors Products Availability Manufacturers System / Parts Better efficiency and less cost Contribute to the prevention of Global Warming by utilizing CO2

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