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Sustaining the Environment Lower GWP Refrigerants & Options


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Sustaining the Environment Lower GWP Refrigerants & Options

  1. 1. Sustaining the EnvironmentLower GWP Refrigerants & Options One Company Focused on Climate & Energy Date | 1
  2. 2. Agenda GHG Impact The Industry Challenge Options to Take us Closer to Our Goal  Refrigerants  Low Charge Systems  Reduced Leaks  Energy Efficiency Summary Danfoss Policy Date | 2
  3. 3. The Industry Challenge !Environmental ImpactChallenges Limited energy  Growing resources Demand population Global warming  Growing need: comfort & safety Legislation and Regulation Demand Viable Energy Efficient technology Acceptable low-GWP refrigerants Sustainability limit Demand  High Efficiency  Low GWP Time Date | 3
  4. 4. Refrigeration & Air Conditioning IndustryImpact on Climate Change & Global Warming System operation energy consumption ns io iss ir ec t em 80 nd I / Di re 20 ct em iss io n s Green House Gasses - GHG Refrigerants (CO2, CH4 , N2O, HFCs, SF6) Emissions Date | 4
  5. 5. What do we do to get closer to the goal? Technology Low-GWP Options refrigerants Improved energy efficiency Minimal charge Lower leakage systems rates Date | 5
  6. 6. Ozone Depletion and Global Warming Global Warming Potential (GWP)100a 20.000phase down (Proposed) 4.000 Montreal Protocol Montreal Protocol R404A (in force) 2.000 R600a, NH3, air… Date | 6
  7. 7. Example of a CO2 SolutionSupermarket/Industrial Refrigeration  The high risk of refrigerant leaks in supermarket distribution systems High stageR717 (NH3) condenser High stage calls for an better solution.R134a, R404A, … High stage compressor(s) expansion valveR290, R1270, … Cascade heat exchanger  Cooling with CO2 has energy drawbacks in warm climates, butCO2 otherwise… Liquid pump Medium temp evaporator  Cascade systems built on state of the art technology are globally applicableLow temp Low temp Low stageexpansion valve evaporator compressor(s) Date | 7
  8. 8. Minimal Charge SystemsMicrochannel Heat Exchangers Depending on system design the typical charge amount can be reduced with 30-60 %. COP can typically be increased with 10% due to low pressure drop and increased heat transmission Micro channel technology is not new. This proven technology has been used since 1980 in automotive air conditioning. The same technology is modified to residential and commercial air conditioning systems. Date | 8
  9. 9. Lower Leakage Rates More sensitive leak detectors Minimize joints in the product and installation Deploy controls systems for containment strategy to isolate leaks & prevent loss of complete charge Direct weld & solder components Hermetic components Preventive maintenance Date | 9
  10. 10. Improved Energy EfficiencyCost Legislative lever T3 T2 T4 T1 Efficiency At the end – What matters is the efficiency / cost ratio. | 10
  11. 11. Variable Speed Systems Lower Energy Costs  Fixed speed 948 hr  Modulated compressor 1189 hr  Performer VSD 1520 hr Performer VSD Modulated Makes $100 go Fixed speed considerably further HOURS0 948 1189 1520 Source: Results are derived by use of the Danfoss HVAC simulation tool for a typical air conditioning usages in a Houston household from March to June | 11
  12. 12. Variable Speed SystemsScroll 3-5 Tr Datawith IPM motor  Speed range 900 RPM to 4500 RPM  High ambient operation up to 137°F  All serial communication basedAll-in one drive with Performance internal VS coolingfan  Over 4 SEER points to modulation  Over 10 dbA quieter  Exact temp control with +/- 0.2°F  Smart compressor protectionCredit card sizedEEV controller withserialcommunication | 12
  13. 13. EcoFlow™ Adaptive DistributionImmediate advantages with EcoFlow™ Continuous monitoring and optimisation Eliminates maldistribution Insensitive to variations in air flow over the evaporator Enables higher SEER/EER performance | 13
  14. 14. EcoFlow™ The Benefits and OpportunitiesEfficiency benefits System opportunities Environmental benefits Increased system capacity  Improved dehumidification  Increased SEER/EER Increased COP  Load matching from ultra-  Energy savings from one Balanced refrigerant flow low to maximum capacity million EcoFlow valves:  Diagnostics capabilities $110 million per year,  Defrost by disabling one equivalent to 85 wind segment at a time turbines  One EcoFlow saves 1430  Smaller evaporator possible lbs CO2 per year, equivalent to driving a car 1600 miles | 14
  15. 15. Summary & Potential Next Steps: Mainstream market is set with HFCs. Until there is a phase down cap with deadlines, progress to alternative refrigerants will be very slow. A regulatory framework to constrain GHG is not an option any more. A global mandate is needed. Light commercial systems are well suited for hydrocarbons. Known for almost two decades, the trend is now increasing. Demonstration projects in China show interest in residential A/C. Several applications, especially food retail, are very suitable for CO2 solely or in combination with other refrigerants as NH3, HC or HFCs. Larger A/C systems will be more challenging to convert to low GWP refrigerants. Low flammability refrigerants such as R32 and HFO1234yf will play a significant role in the future. R32 will has potential to replace R22. HFO1234yf will be used in blends to replace R22 and HFC’s. Date | 15
  16. 16. Danfoss Policy We will enable our customers to achieve refrigerant goals while continuing to enhance the energy efficiency of refrigeration and air-conditioning equipment. Danfoss will proactively develop products for low-GWP refrigerants, both natural and synthetic, to fulfil customers’ needs for practical and safe solutions without compromising energy efficiency. Danfoss will lead and be recognized in the development of natural refrigerant solutions. Danfoss supports the establishment of a global regimen (such as the Montreal Protocol) to phase down emissions of high-GWP refrigerants … while providing for long-term production of small quantities of HFCs for critical needs. Date | 16