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A design tool for glazed spaces. 1. Description.

Author(s) : WALL M.

Summary

The climate in a glazed space and the energy requirement in it are greatly affected by the outside climate, particularly by solar radiation. When calculations are made for a glazed space, solar radiation must therefore be treated considerably more fully than for a conventional building with windows of normal size. Calculations have been made with the computer program DEROB-LTH. The calculations demonstrate that the type of glazing, the transmissivity of the glass, and the absorptivity of the surfaces inside the glazed space have a great significance. On the other hand, the geographical location of the glazed space in Sweden, its orientation, and the time of year are of less importance. The proportion of transmitted solar radiation retained in the glazed space may vary between about 30 and 90%. A simple manual calculation method has been developed for the assessment of the temperature and energy requirement in glazed spaces. It is intended that this calculation method be used as early as possible during the preliminary design stage so that an idea may be gained of the difference between alternative designs.

Details

  • Original title: A design tool for glazed spaces. 1. Description.
  • Record ID : 1997-1029
  • Languages: English
  • Subject: Environment
  • Source: ASHRAE Transactions.
  • Publication date: 1995/06/24
  • Document available for consultation in the library of the IIR headquarters only.

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