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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

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
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
natural refrigerants
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
simplified scheme transcritical booster co 2
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%
centralised refrigeration systems for supermarkets
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

transcritical booster co 2
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

optimum high pressure
Optimum high pressure
  • Temperature and pressure are in depended from each other

Source: Bitzer

heat recovery
Heat recovery
  • Heat recovery with CO2 booster installation/vriesinstallatie
co 2 booster for high temperature climates
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)
co 2 emissions per co 2 eq kg year
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

safety issues for co 2 installations
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

safety issues
Safety issues
  • Discharge safety valves outside
co 2 installations fri jado
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)
conclusions
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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