| Abstract: | The program described in this paper computes the heat loss by convection and radiation from one or two pane windows, glazed with plastic or glass, coated with infra-red reflecting layers, bloomed to reduce reflection of visible radiation, and whose interpane space is filled with various gases. Comprehensive weather measurements from Kew (London) for the years 1959–1969 are read in for each hour. Energy losses at each glazing element are calculated using data concerning the behaviour of the various coatings and glazing materials towards visible and infra-red radiation. the advantages of coated windows for passive solar heating are discussed. |
