University of California

Ask the Produce Docs (General)

Can you help with evaporative system cold storage of mango?

Category
  • Cold Storage
Question

I am working on cold storage of mango using evaporative cooling principles. Could you help me with some information, particularly on model equations for the storage chamber environment? (E.A.)

Answer

 Evaporative cooling can reduce outside air temperature to within a few degrees above the outside wet bulb air temperature.  It is particularly useful in temperate climates but is of some help even in many tropical areas.  If you are primarily cooling fruit slowly and storing it, the system should produce 0.03 m3/s-tonne.  If you are interested in fast cooling the airflow system should produce 0.3 m3/s-tonne.  In evaporative cooling systems the air is cooled by a wetted medium, passes by the warm product and then exhausted to the outside.  It is not recirculated.  Design details for the evaporative cooler can be found at a number of web sites discussing evaporative cooling for greenhouses.  You might try: http://edis.ifas.ufl.edu/AE069. –Jim Thompson

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