Massimiliano Mandrile - FIAT GROUP AUTOMOBILES - LA RICERCA DI UN REFRIGERANTE A BASSO GWP: COS’HA GUIDATO LA SCELTA DELL’INDUSTRIA AUTOMOBILISTICA
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Massimiliano Mandrile - FIAT GROUP AUTOMOBILES - LA RICERCA DI UN REFRIGERANTE A BASSO GWP: COS’HA GUIDATO LA SCELTA DELL’INDUSTRIA AUTOMOBILISTICA

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Massimiliano Mandrile - FIAT GROUP AUTOMOBILES - LA RICERCA DI UN REFRIGERANTE A BASSO GWP: COS’HA GUIDATO LA SCELTA DELL’INDUSTRIA AUTOMOBILISTICA Massimiliano Mandrile - FIAT GROUP AUTOMOBILES - LA RICERCA DI UN REFRIGERANTE A BASSO GWP: COS’HA GUIDATO LA SCELTA DELL’INDUSTRIA AUTOMOBILISTICA Presentation Transcript

  • XV EUROPEAN CONFERENCE MILANO 7th-8thJUNE 2013 CSGLatest Technology in Refrigeration and Air ConditioningUnder the Auspices of the PRESIDENCY OF THE COUNCIL OF MINISTERSThe quest of a new low GWP refrigerant:the reason behind an industry choiceMassimiliano MandrileFiat Group Automobiles
  • XV EUROPEAN CONFERENCE MILANO 7th-8thJUNE 2013 CSGLatest Technology in Refrigeration and Air ConditioningUnder the Auspices of the PRESIDENCY OF THE COUNCIL OF MINISTERSBACKGROUNDThe European Union directive 2006/40/EC•SCOPE: Mobile Air Conditioning systems (M1 and N1 classI)•AIM: reduction of the atmosphere emissions of high GlobalWarming Potential refrigerants.•ACTION: ban of refrigerants with GWP>150 for MAC purpose.
  • XV EUROPEAN CONFERENCE MILANO 7th-8thJUNE 2013 CSGLatest Technology in Refrigeration and Air ConditioningUnder the Auspices of the PRESIDENCY OF THE COUNCIL OF MINISTERSHOW DID INDUSTRY MOVE• Established teams involving manufacturers, MACcomponents suppliers, national laboratories, universitiesfrom all around the world.• Investigated several fluids with the potential to be thealternativesGOALFind refrigerants• The most environmental friendly• As safe as the R-134a
  • XV EUROPEAN CONFERENCE MILANO 7th-8thJUNE 2013 CSGLatest Technology in Refrigeration and Air ConditioningUnder the Auspices of the PRESIDENCY OF THE COUNCIL OF MINISTERS• R-744 (GWP=1)• R-1234YF (GWP=4)THE LAST SURVIVORS
  • XV EUROPEAN CONFERENCE MILANO 7th-8thJUNE 2013 CSGLatest Technology in Refrigeration and Air ConditioningUnder the Auspices of the PRESIDENCY OF THE COUNCIL OF MINISTERSDIFFERENCIES1,0010,00100,00140 160 180 200 220 240 260 280 300 320 340 360 380 400 420 440 460 480 500Pressure[bar]Enthalpy [kJ/kg]R134a vs R744 vs HFO1234YFR134aR744HFO1234YFParameters R-1234yf R-744Minimum operational pressure (MPa) 0.3 3Maximum operational pressure (MPa) 3 12Operating maximum temperature (°C) 120 170Compressor displacement range (mini topremium vehicles)60cc – 170cc 15 - 30ccCompressor’s number of piston 5 – 7 9System weight (delta vs R-134a system) (kg) Zero 5 – 10R-744: transcritical refrigerationcycle at a very high pressureR-1234YF: very close to theR-134a.
  • XV EUROPEAN CONFERENCE MILANO 7th-8thJUNE 2013 CSGLatest Technology in Refrigeration and Air ConditioningUnder the Auspices of the PRESIDENCY OF THE COUNCIL OF MINISTERSTxVEVAPORATORCONDENSERCOMPRESSORRefrigerantloopBURST DISC12MPaACCUMULATOREVAPORATORGAS COOLERCOMPRESSORRefrigerantloopINTERNAL HEATEXCHANGERDIFFERENCIESMAC system for R-1234yf(same as R-134a) MAC system for R-744
  • XV EUROPEAN CONFERENCE MILANO 7th-8thJUNE 2013 CSGLatest Technology in Refrigeration and Air ConditioningUnder the Auspices of the PRESIDENCY OF THE COUNCIL OF MINISTERSINDEXES: Global Warming Potential
  • XV EUROPEAN CONFERENCE MILANO 7th-8thJUNE 2013 CSGLatest Technology in Refrigeration and Air ConditioningUnder the Auspices of the PRESIDENCY OF THE COUNCIL OF MINISTERSINDEXES: Total Equivalent Warming Impact
  • XV EUROPEAN CONFERENCE MILANO 7th-8thJUNE 2013 CSGLatest Technology in Refrigeration and Air ConditioningUnder the Auspices of the PRESIDENCY OF THE COUNCIL OF MINISTERSINDEXES: Life Cycle Climate Performance
  • XV EUROPEAN CONFERENCE MILANO 7th-8thJUNE 2013 CSGLatest Technology in Refrigeration and Air ConditioningUnder the Auspices of the PRESIDENCY OF THE COUNCIL OF MINISTERSGreen-MAC-LCCP©www.epa.gov/cpd/mac/compare.htm2017 Global CO2eq by Region [Mton]R-744 CO2 emissions are always worst than R-1234yf.The gap is higher in the hotter countries where the emissions areeven worst than those of R-134a.
  • XV EUROPEAN CONFERENCE MILANO 7th-8thJUNE 2013 CSGLatest Technology in Refrigeration and Air ConditioningUnder the Auspices of the PRESIDENCY OF THE COUNCIL OF MINISTERSCONCLUSIONS• Automotive Industry spent a lot of efforts during severalyears looking for a refrigerant that could have a betterenvironmental impact• LCCP take into consideration both direct and indirectemission. It has been judge to be a more comprehensiveparameter to evaluate a refrigerant capable to thoroughlymeet the final expectation.• Through a model built to evaluate LCCP for MAC, it hasbeen seen that R-1234yf is the best choice for theenvironment and for that reason it has been chosen tosubstitute the R-134a.