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IIR document

Cooling demand: a challenging issue for new buildings in moderate climates.

Number: pap. n. 849

Author(s) : CHWIEDUK D.

Summary

This paper aims to illustrate the problem of summer overheating of rooms in specific locations with large windows in new well insulated buildings in moderate climates. Such problems did not exist in older buildings characterized by relatively high heat transfer through the building envelope. Solar energy gains can influence the thermal comfort of rooms with large windows significantly, causing high cooling energy demand even in moderate climates. A mathematical model of the energy balance of a building has been elaborated with the focus being on heat transfer through windows and solar energy passing through them. The results show that if the glazed surface of the west and south façade of a building is large, then the summer cooling demand can be twice the winter space heating demand. This is a new challenge for the energy supply and thermal comfort systems of new buildings.

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Pages: 9

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Details

  • Original title: Cooling demand: a challenging issue for new buildings in moderate climates.
  • Record ID : 30026244
  • Languages: English
  • Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Publication date: 2019/08/24
  • DOI: http://dx.doi.org/10.18462/iir.icr.2019.0849

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