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Aspects concerning the use of binary ice for comfort air-conditioners.

Number: pap. n. 140

Author(s) : NICHITA M. T., DUMITRESCU R., CHIRIAC F.

Summary

This paper refers to the use of ice-slurry, as an intermediary phase-changing cooling fluid, in air-conditioning. Ice-slurry is provided by a scraper-type generator that is part of a single stage compression system working with R404A, as primary refrigerant. A mixture of ice slurry, water, and talin (10% mass concentration) represents the secondary cooling medium. This was used in a heat exchanger of classical type, namely an air cooler, with aluminum fins, of 0.1 mm thickness. This paper reports experimental results of ice-slurry used as cooling fluid for air-conditioning consumers of various cooling capacity demands. Experiments have been carried out using two different ice mass fractions, namely approximately15% and 20% and two different air volumetric flow rates, namely Qair = 3000 m3 / h and Qair = 2000 m3 / h The cooling capacity of the ice-slurry generator has been experimentally validated by simultaneously determining the thermal capacity for the evaporator (as a function power input to the compressor), for the air-cooler and air heaters.

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Pages: 10 p.

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Details

  • Original title: Aspects concerning the use of binary ice for comfort air-conditioners.
  • Record ID : 30008674
  • Languages: English
  • Source: Clima 2013. 11th REHVA World Congress and 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings.
  • Publication date: 2013/06/16

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