坚持认为，有关窗户遮阳系数或太阳热增益系数的设计信息，例如ASHRAE基础知识手册（ASHRAE 1989）中包含的信息，对于被动式太阳能设计师来说是不充分的。关于阴影系数的列表数据不包括新的高性能玻璃系统，仅针对夏季条件进行列表，并忽略任何框架或玻璃边缘效果。扩展中心玻璃太阳能热增益系数（SHGC）表，检查太阳辐射、风速和环境温度的影响，并量化框架和边缘SHGC。声明结果是一个计算总窗口SHGC的简单过程。关键词:窗户，太阳能热增益，遮阳，设计，被动式，太阳能加热，计算引用: ASHRAE Trans。1992年，第98卷，第1部分，论文编号AN-92-6-2，825-831，图1，5页，参考文献。

Maintains that design information on window shading coefficient or solar heat gain coefficient, such as that contained in the ASHRAE Handbook of Fundamentals (ASHRAE 1989), is inadequate for the passive solar designer. The tabulated data on shading coefficient does not cover the new high-performance glazing systems, is tabulated for the summer condition only and ignores any frame or edge-of-glass effects. Expands the table of centre glazing solar heat gain coefficients (SHGCs), examine the effect of solar radiation, wind speed and ambient temperature and quantifies frame and edge SHGC. States the result is a simple procedure to calculate total window SHGC.KEYWORDS: Windows, solar heat gain, shades, designing, passive, solar heating, calculating