标准摘要
[中文适用范围]： 本文件规定了一种测量开窗系统（例如带或不带遮阳装置的完整窗户、门或幕墙）玻璃中心的太阳得热系数的方法，用于表面上的正常和非正常照射。 本文件适用于开窗系统中的玻璃中心，该系统可能包括： a) 各种类型的玻璃（例如玻璃或塑料；单层或多层玻璃；有或没有低辐射率涂层，以及充满空气或其他气体的空间；不透明或透明玻璃）； b) 各种类型的遮阳装置（如百叶窗、屏风、薄膜或任何具有遮阳效果的附件）； c) 各种类型的主动式太阳能开窗系统[例如建筑一体化光伏系统（BIPV）或建筑一体化太阳能集热器（BIST）]。 本文件不包括： a) 建筑构件（如屋檐、套墙等）的遮阳效果； b) 具有悬垂结构（例如遮阳篷等）或类似结构的开窗附件的遮阳效果； c) 开窗系统中非玻璃元件的遮阳效果（例如窗框等）； d) 室内外漏风引起的热量传递； e) 双窗和连体窗空气空间的通风； f) 玻璃窗与其余开窗部件（例如窗框等）之间接缝处的热桥效应。 [外文原描述]： This document specifies a method to measure the solar heat gain coefficient for the centre of glazing in fenestration systems (e.g. complete windows, doors or curtain walls with or without shading devices) for normal and off-normal irradiation on the surface. This document applies to the centre of glazing in fenestration systems which might consist of: a) various types of glazing (e.g. glass or plastic; single or multiple glazing; with or without low emissivity coatings, and with spaces filled with air or other gases; opaque or transparent glazing); b) various types of shading devices (e.g. blind, screen, film or any attachment with shading effects); c) various types of active solar fenestration systems [e.g. building-integrated PV systems (BIPV) or building-integrated solar thermal collectors (BIST)]. This document does not include: a) shading effects of building elements (e.g. eaves, sleeve wall, etc.); b) shading effects of fenestration attachments with overhang structures (e.g., awning, etc.) or similar; c) shading effects of non-glazing elements in fenestration systems (e.g. window frame, etc.); d) heat transfer caused by air leakage between indoors and outdoors; e) ventilation of air spaces in double and coupled windows; f) thermal bridge effects at the joint between the glazing and the rest of the fenestration parts (e.g. window frame, etc.).
英文名称Thermal Performance of windows and doors — Determination of solar heat gain coefficient using solar simulator — Part 2: Centre of glazing