Vapour compression refrigeration / freezing

FOOD PRESERVATION - REFRIGERATION AND FREEZING

 

The vapour compression  cycle  is the most  common  and widespread type of  refrigerator  and freezer. In this cycle, a refrigerant gas is compressed mechanically and sent to a condenser, which, by exposure to ambient air or water, cools the vapour, liquefying it and transferring heat to the external environment. As the liquid refrigerant leaves the condenser, it is forced through an expansion valve, lowering its pressure and drawing heat from the thermally insulated volume through the internal evaporator.

Reference links: www.solarchill.org

 

 

Advantages/Disadvantages

Advantages

  • On site assembly;
  • Possibility to be directly powered by PV system;
  • Low or no effect on a food's taste and texture;
  • High efficiency;
  • Possibility to reach very low temperature.
  • Freezing possibility

Disadvantages

  • On site assembly;
  • Possibility to be directly powered by PV system;
  • Low or no effect on a food's taste and texture;
  • High efficiency;
  • Possibility to reach very low temperature.
  • Freezing possibility

Examples of the technology

Examples of the technology applications

It has already been utilised in Senegal by The Danish Technological Institute (SolarChill project).

 

 

For further information download the Guidelines.

 

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SET4food is a project developed by:                                                                                                                                

Logo a colori in orizzontale senza pay off    PoliMI Croped SAFE -CropedGlobal Aliance Clean Cookstoves blue v2 Transparent    FAO     WFP

 

 
 
 

                                                           Co-funded by:      

         EU CP-HA EN                                                                                                                                                  

 

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