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Energy consumption analysis of the combined evaporative cooling and cooling ceiling air-conditioning system.

Author(s) : HUANG X., LI Y., WU J.

Summary

The refrigerant in evaporative cooling is water. It causes no atmospheric pollution. Its COP is higher than that of a conventional mechanical refrigerator, and its energy consumption is about 70% that of the conventional air-conditioning equipment. The initial investment is low, being about one half to that of conventional air-conditioning equipment. However, due to such disadvantages as large air duct and high energy consumption of the present all outdoor air evaporative cooling systems used and the superiority of ceiling cooling system in improving thermal comfort as well as its saving energy efficiency, the combined evaporative cooling and cooling ceiling air-conditioning system is presented in the paper. It combines an evaporative cooling system with ceiling cooling, in which the evaporative cooling system affords the whole latent loads and one part of sensible loads, and the ceiling cooling system deals with other part of sensible loads in the air-conditioned zone, so that the condensation on radiant panels and the insufficiency of cooling capacity can be avoided. The cooling water at 18°C in the cooling coils of ceiling cooling system can be the ground water, tap water and cooled water from cooling towers in summer.

Details

  • Original title: Energy consumption analysis of the combined evaporative cooling and cooling ceiling air-conditioning system.
  • Record ID : 2007-0294
  • Languages: English
  • Source: ACRA-2006. Proceedings of the 3rd Asian conference on refrigeration and air conditioning.
  • Publication date: 2006/05/21

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