An evaluative method for high-perfomance window system and window side radiation environment

A study was performed on a method to evaluate performance of window system necessary to satisfactorily maintain the window side radiation environment in a glass building. On general type window using high-performance glass, air flow window and push-pull window, U-factors and SCs in various specifications were obtained from numerical calculation. Also, a simulation model for indoor radiation environment is proposed using the newly defined window thermal property values. As an evaluation index of radiation environment, gOT increase on window sideh is proposed, and a window system is indicated, which is recommendable from the viewpoint of numerical analysis performed on office buildings.