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Characterization and comparison of two prototypes of indirect evaporative coolers.

Number: pap. ID: 141

Author(s) : VELASCO GÓMEZ E., TEJERO GONZÁLEZ A., REY MARTÍNEZ F. J.

Summary

Two polycarbonate heat exchangers have been experimentally characterized in two heat-recovery operation modes. The prototypes are designed with a total heat exchange area of 5.6 and 3 m2 respectively. The experimental setup constructed for the tests mainly consists of: an air handling unit to simulate the outdoor airstream conditions, a conditioned climate chamber, and a water circuit to provide the water supply required. In the first operation mode, exhaust air from the conditioned space goes through one side of the heat-exchanger, while outside air flows through the other, heat transfer being transferred through the polycarbonate walls from one stream to the other. To perform the evaporative cooling process, water is supplied to the exhaust airstream. Results are analysed considering how heat-exchange area, outside airstream volume flow rate and temperature, as well as mode of operation influence in the performance obtained. The parameters studied for the different conditions performed are: cooling capacity, thermal effectiveness and thermal conductance.

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Pages: 8 p.

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Details

  • Original title: Characterization and comparison of two prototypes of indirect evaporative coolers.
  • Record ID : 30001550
  • Languages: English
  • Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
  • Publication date: 2011/08/21

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