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Low charge ammonia air-cooled chillers with microchannel condenser.

Author(s) : ALOISIO F., DEL GOBBO G.

Summary

This paper shows a case of study for the methods and solution to reduce ammonia charge in an air cooled chiller for air-conditioning application (water 11°C/6°C) till 900 kW of cooling capacity, having at the same time high efficiency, for air ambient condition from -20 to +45°C. Aluminium microchannel condenser and flooded evaporator are used to achieve this result. To optimize the performance in part-load condition, screw and reciprocating compressors used have variable speed control while fans for condensation are operated by permanent magnets motors equipped with VFD.

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Pages: 6 p.

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Details

  • Original title: Low charge ammonia air-cooled chillers with microchannel condenser.
  • Record ID : 30002825
  • Languages: English
  • Source: 4th Conference on Ammonia Refrigeration Technology. Proceedings: Ohrid, North Macedonia, April 14-16, 2011.
  • Publication date: 2011/04/14

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