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Air-conditioning systems in urban areas with respect to the heat island problem.

Author(s) : SHINOMIYA N., NISHIMURA N., NOMURA T., et al.

Summary

In recent years, urban areas have been experiencing a rise in the regional atmospheric temperature because of the heat island phenomenon, which increases the summer heat. One of the causes is an exhaust heat from air conditioners. In this paper, the authors analyze dynamic characteristics of a split type air-conditioner's operation, taking into consideration the local characteristics within a city because there are local characteristics of the atmospheric temperature. They also survey the deterioration in the performance of these air-conditioners and the increase of exhaust heat from them ascribable to the temperature rise caused by the heat island phenomenon. As a result, an air-conditioner's performance in a rated operation varies by 8.8%, when there is a regional atmospheric temperature difference of 2.7°C. Also, an amount of exhaust heat fluctuates a little in response to the atmospheric temperature.

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Pages: ICR07-E1-798

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Details

  • Original title: Air-conditioning systems in urban areas with respect to the heat island problem.
  • Record ID : 2007-2749
  • Languages: English
  • Subject: Environment
  • Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Publication date: 2007/08/21

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