The Ecological Air conditioning Technologies

Transcription

1 The Ecological Air conditioning Technologies K. Kanaoka Oct/2016 Growing energy saving tendency Country CO2 emission Ref. year China 60-65% reduction by EU 40% reduction by India 33-35% reduction by Japan 26% reduction by Russi a 70-75% restraint by US 26-28% reduction by

2 Global energy consumption overview Mid. Income, High consumption Gr. Russia Malysia Energy consumption per capita Taiwa n Saudi Arabia Korea Japan France Germany UK Income increase may spur energy consumption Netherland US Population 342 million High income, High consumption Gr. Australia China Thailand Brazil Indonesia India Population 3.1 Billion. Low income, Low Ecological Gr ,000 consumption 20,000 30,000 Gr. 40,000 50,000 60,000 70,000 GDP/capita ($) Source : 2014 BP Primary energy consumption TOE (Metric Tons of Oil Equivalent) Global Energy Demand forecast 33% increase Transportation Latin America Africa Middle East Other Asia India Chin a Counted by oil consumption (100mil tons) Forecast Russia East Europe Other OECD nations Japan US 4

3 Energy saving in Japan Background 100 mil.kwh Composition of Electricity Generation Geothermal. Hydraul ic Oil Thermal power 88.3% LPG Coal Nuclear Tohoku Earthquake!! 5 Energy saving in Japan Price JPY/kWh Transition of Electricity price 25.2% up Househo ld 38.2% up Industrial 6

4 Energy saving in Japan Innovation Residential AC Efficiency improvement R a t e d C O P Heating COP Cooling COP Applicatio n of Inverter New regulation Top Runner system Revised performanc e indication. COP to seasonal efficiency APF 7 Energy saving in Japan Result / kwh/yr 4,000 3,500 3,394 3,394 Annual (4.0kW power consumption 3,000 2,500 2,000 1,500 1,000 2,933 2,933 2,562 2,488 2,165 2,015 1,704 1,614 1,571 1,525 1,516 1,541 1,512 1,336 1,314 1,314 1,336 1,293 1,252 1,145 1, % reduction 8

5 AC Technical Innovation Compressor Fixed speed Variable speed Inverter + High -tec. refrigerant control Heat Exchanger Single row, strait coil Multiple row, Curved coil + Micro-channel Fan motor AC motor DC motor 9 Compressor Innovation Approx. 8 9% of AC power is consumed by a compress Rated condition 格 Comp. 89% ODU Fan 5% IDU Fan 5% Power input [W] Part load conditio n Comp. 76% ODU Fan 11% IDU Fan 10% Power Input [W] Compressor power reduction is effective

6 Compressor Innovation - Inverter Changing motor speed according to the load fluctuation to achieve electricity saving. Compressor Innovation - Inverter Variable speed compressor offers best performance in part load condition Efficienc y 8 50% 100% 期間 Most frequently にしてused capacity 度の高い能 range 能 Capacity [W] (W)

7 Compressor Innovation DC Inverter Excellent part load efficiency Suction port Relief mechanism Compression eff. (%) Thrust Compressor Characteristics Rotary Comp. DC Inv. Scroll AC Inv. Scroll Comp. 60 DC Inverter Motor Loaded ratio (%) 13 Compressor Innovation Part load Performance Compressor performance Compression Eff. 50%up New type Back pressure control mechanism to improve part load performance Conventional type 5%up Intermediate press. injection circuit to improve rated load performance Loaded Ratio

8 Inverter-driven AC penetration Inverter-Products as Percentage of Residential Air conditioners) Conditioner Demand (number of air 15 Refrigerant control Innovation Advanced Ref. Control Variable Ref. Temp. Control + Electronic Ex. valve Adjust evaporative temp. according to the load 16

9 Refrigerant control Innovation Advanced Ref. Control Variable Ref. Temp. Control + Electronic Ex. Valve Quick and accurate refrigerant flow control Conventional type Electronic expansion valve 17 Heat Exchanger Innovation Heat Exchanger Single row, straight coil Multiple row, Curved coil Wider surface allows better heat exchange Transition the shape of RA heat exchanger + Micro-channel New deign expands surface area 18

10 Fan motor Innovation Fan motor AC motor DC motor DC fan mot0r characteristics DC motor DC ファンモ タ Efficiency % % or more Speed (rpm) AC ファンモ タ AC motor DC fan motor fine air vol. adjustment offers comfortable condition 19 Fan motor Innovation Advanced DC fan motor Low vibration ( 71% : than conv. type) Low noise ( 50% : than conv. type) Minimum speed reduction <Conventional> <New type> 350rpm 281rpm Outer rotor type Conventional (Inner type) ODM (Outer type) F Rotor F Fan noise reduction Fine steps Fan step <Conventional> <New type> Fine steps Optimum fan speed for the load 8 steps 53 steps 20

11 Further Innovation Refrigerant Composition Ozone depletion potential (ODP) Global warming potential (GWP) Flammability Cooling Capacity Theoretical COP P cond (Mpa) R22 Single No HFC Non-HFC R410A Azeotrope- (R32+ Like No R125) R32 Single Propane (R290) CO2 (R744 ) Single 0 <3 Slightly flammable Highly Flammable Single 0 1 No R1234yf Single 0 4 Slightly flammable Special con dition at laboratory test Further Innovation Refrigerant CO 2 emission potential of R32 vs. R410A GWP Charged amount GWP x Quantity 2088 x = 100% % % 472 GWP Values according to IPCC 4th Assessment Report For the EU F gas regulation the GWP values of IPCC 3rd report are valid (R410A = 1975, R32 = 650)

12 Further Innovation Refrigerant Global warming prevention by R32 Global warming effect by HFC (Billon Co2 tons) 46% of Global warming Global effect restraint warming by effect restraint by shifting to R32 in emerging R410a to R32 countries switching from R410A As it is Switching to R32 Reduction by other method 23 HFC32 - Characteristics HFC32 is the most balanced refrigerant Economy Ozone HFO1234yf LCCP R410A Characteristics of HFC32 Zero Ozone Depletion Potential Superior Energy Efficiency (10% better than HFC22) Small Global Warming Impact (LCCP) Small Conversion Cost (almost same as conversion to R410A) Acceptably Mild Flammable Successful risk assessment done in Japan & Safer in Use. Supply capability is sufficient (Suppliers exit now) Safety R32 Propane Energy Efficiency

13 Green is more than a temporary strategy at Daikin. It is embedded in our consistent philosophy to achieve more together. Our Fusion 20 strategic management plan is also attuned to our movement to help turn the world greener. Together. In vision and action. 26