Abstract
Low-e glazing is classified as soft low-e glazing and hard low-e glazing. Hard low-e glazing can be temperable and its handling is comfortable because its coating film is a oxide film generated at high temperatures. But there is a fatal weakness that its insulation performance and shielding performance are lower compared to soft low-e glazing by low electrical conductivity of coating film. Soft low-e glazing is excellent because its coating film consists of Ag that is excellent electrical conductivity and it has strength that can supply various product consumers want. But soft low-e glazing has weaknesses that temperable and handling are difficult because Ag is oxidized easily. Therefore this study analyzes thermal performance of glazing by changing filling gas according to applying low-e glazing through simulation to judge performance before making sample. And then we produced test specimens and measured surface temperature of windows using TVS(Thermal Video System) and thermocouples. Finally we conducted experiment of thermal performance of an actual window composed most effective materials according to the result of analysing each element. As a result, we confirmed that the thermal performance of the window composed most effective materials was improved up to about 40% compared to general single low-e windows.
