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Performance characterization of an ice-storage system for small scale cooling applications.

Number: 162

Author(s) : BEDRU HUSSEN M., TORRES-TOLEDO V., MÜLLER J., ALEMU D., CORONAS A.

Summary

An external ice-on-flat surface ice storage system based on a conventional vapor compression refrigeration priniple was studied. The system uses a variable speed DC-Compressor of 75W nominal power and a flat tube channeled evaporator surface fully immersed in a water bath. A performance characterization was carried out for two compressor speeds at 2000 rpm and 3500 rpm and three ambient temperatures of 25°C, 35°C, and 45°C. A daily ice mass production rate ranging from 26.28 kg to 13.96 kg was obtained for the compressor speeds and ambient temperature ranges studied. The compressor energy consumption ranged from 0.83kWh to 1.71kWh and the COP values varied between 2.63 and 1.5. A system configuration with a better ice production tends to have a COP value of 1.75 and 2.09 respectively for higher and lower compressor speeds. According to the results, energy efficient operation of small capacity variable speed compressors could be acieved at lower compressor speeds and ambient temperatures.

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Details

  • Original title: Performance characterization of an ice-storage system for small scale cooling applications.
  • Record ID : 30028071
  • Languages: English
  • Source: X Congreso Ibérico y VIII Congreso Iberoamericano de Ciencias y Técnicas del Frío, CYTEF 2020.
  • Publication date: 2020/11/11

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