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HFC-free refrigeration technology for the retail

HFC-free refrigeration technology for the retail. (Currently a technical revolution is taking place in the refrigeration industry ). CLIMATECHNO. Bart van der Wekken. F- gas regulations. Proposal new F-gas regulation : From 1-1-2016 ban on new installations with R404A/R507 (GWP>2500)

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HFC-free refrigeration technology for the retail

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  1. HFC-free refrigeration technology for the retail (Currently a technical revolution is taking place in the refrigeration industry) CLIMATECHNO Bart van der Wekken

  2. F- gas regulations Proposal new F-gas regulation: • From 1-1-2016 ban on new installationswith R404A/R507 (GWP>2500) • From 1-1-2020 ban on allHFC’s in new installations • From 1-1-2017 ban on charging existing installations with R404A/R507 Practical consequences: • Notwise building new installationswithR404A/R507 (GWP>2500) • Remodeling: considerationR404A/R507 • Intermediate solution: R407F (GWP=1850) • Future= CO2

  3. Natural refrigerants Hydro Carbons (HC: e.g. Propane and Iso-butane) • Generally excepted in plug-in refrigeration cabinets/refrigerators (charge < 150 gr.) • Market is growing for indirect systems; systems located outdoors • High flammability Ammonia (NH3) • Well known in industrial refrigeration technology • High toxicity Carbon Dioxide (CO2) • Retail refrigeration technology • High pressure

  4. Simplified scheme, Transcritical Booster CO2 • Charge 100% CO2 (HFC-free) • Suitable for moderate climates • Simple system (compared to cascade) • For Dutch climate best solution • TEWI reduction up to 45% • Energy saving 15%

  5. Centralised refrigeration systems for supermarkets • Transcritical CO2 Booster, with LT and MT cabinets, is the best solution for northern Europe (North of Paris) More efficiënt Equal Less efficiënt

  6. Gascooler/Condenser MT CO2 DX Heat recovery LT CO2 DX MT Comp. LT Comp. ICMT ETS Receiver Suction accumulator Evaporator MT Evaporator LT Transcritical Booster CO2 Source: Bitzer

  7. H-log p-diagram

  8. Optimum high pressure • Temperature and pressure are in depended from each other Source: Bitzer

  9. Heat recovery • Heat recovery with CO2 booster installation/vriesinstallatie

  10. CO2 Booster for high temperature climates CO2 booster systems are less efficient at higher ambient temperatures Two solutions: • Water spraying (reducing ambient temp. with about 5K, Tambient>28°C ) • Additional subcooling system (R134a or HC)

  11. COP Comparison

  12. CO2 emissions per CO2 eq/kg/year • Dutch supermarket; sales area 1200 m2 • TEWI: • GWP refrigerant • leakage • energy consumption R404A Booster 10% leakage CO2 Booster 10% leakage

  13. Safety issues for CO2 installations Cold room evaporator AKV Liquid line Suction line Check valve Alarm unit • Leak detector in coldroom and machineroom • Alarm at 0,5% (5000ppm) CO2 MAC value • During an alarm the electronic expansion valve (AKV) is closed and only the refrigerant charge of the evaporater is leaking in to the room Sensor leak detector

  14. Safety issues • Discharge safety valves outside

  15. CO2 Booster CE/PED certified (module H/H1) • PS 30Bar • PS 45Bar • PS 120Bar

  16. CO2 Booster

  17. CO2 Booster

  18. CO2installations, Fri-Jado • Jan Linders, Venlo (Oktober 2009) • C1000, Leiderdorp (Mei2010) • Plus, Stellendam (Juni 2010) • Jan Linders, Deurne (Juli 2010) • Coop, Nijmegen (Juli 2010) • Plus, Benschop (Augustus 2010) • C1000, Spijkenisse (Augustus 2010) • Jan Linders, Sint Anthonis (September 2010) • Ahoy, Rotterdam (September 2010) • Plus, Den Hoorn (Oktober 2010) • C1000 van Garderen, Almere-Buiten (Oktober 2010) • Agrimarkt, Middelharnis (November 2010) • Deen, Wieringerwerf (November 2010) • C1000, Hoogezand (December 2010) • Jan Linders, Nuenen (Februari 2011) • Jan Linders, Herten (Februari 2011) • COOP, Ameide (April 2011) • Jan Linders, Wijchen (Mei 2011) • Dirk van den Broek, Goes (Mei 2011) • Bas van der Heijden, Bolnes (Augustus 2011) • Plus, Delft (Augustus 2011) • C1000, Bergen op Zoom (September 2011) • Jan Linders, Klimmen (September 2011) • Deen Uithoorn, (Oktober 2011) • Plus, Eindhoven (Oktober 2011) • Em-Té, Enschede (December 2011) • Em-Té, Rijssen (Februari 2012) • Dirk van den Broek, Amersfoort (Februari 2012) • Hoogvliet, Ede (April 2012) • COOP, Eemnes (Juni 2012) • Jan Linders, Nijmegen (Mei 2012) • Agrimarkt, Oud Beierland (Augustus 2012) • Albert Heijn, Amersfoort (Oktober 2012) • Deen, Purmerend (Februari 2013) • Plus, Margraten (Juni 2013) • Jumbo Oegstgeest (Sept. 2013) • Jumbo Breukelen (Sept 2013) • Hoogvliet Alphen a/d Rijn (Aug 2013) • Hoogvliet Bilthoven (Sept 2013)

  19. Conclusions Transcritical CO2 Booster best solution for HFC-free refrigeration technology in the retail. • Up to 15% less energy consumption • Up to 45% TEWI reduction • Suitable for heat recovery Initial costs higher compared to HFC technology • With increasing market share costs of CO2 components will decrease

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