为了验证用于确定复杂开窗（即装有遮阳附件的窗户）中太阳热增量的建模工具，需要对开窗和遮阳组合的数量进行测试。然而，这个过程中的一个问题与使用测试热量计在方位角和高度上跟踪太阳有关。测量的太阳热增益可能会随着量热计的倾斜角发生显著变化，因为对流流与倾斜有关- 凹痕虽然热量计的倾斜角度不会对系统的光学特性产生影响，但向内流动的部分（取决于阴影周围的对流）可能会发生显著变化。因此，进行了一系列试验，以检查向内流动部分的变化，作为盲几何和量热计倾斜的函数。试验在室内模拟风场中进行，使用校准传递标准作为模拟窗口，带有电加热盲板。 以15º的间隔检查0（垂直）至75º的倾斜角度，并在85º进行额外测试。还研究了-45º、0º、45º或70º的板条角。研究发现，大于60°的倾斜角会影响向内流动部分。先前关于缝翼角度的结果也得到了证实。单位:双引用:研讨会论文，佐治亚州亚特兰大，2001年

To validate modeling tools used for the determination solar heat gain in complex fenestration (i.e., windows incorporating shade attachments), tests will be required on number of fenestration and shade combinations. One concern in this process, however, relates to tracking the sun, using the test calorimeter, in both azimuth and altitude. It is possible that the measured solar heat gain will change significantly with calorimeter tilt angle because convective flows are tilt depen-dent. While the calorimeter tilt angle will have no effect on the system optical properties, the inward-flowing fraction, which is dependent on convective flow around the shade, may change significantly. As such, a series of tests were conducted that examined changes in the inward-flowing fraction as a function of blind geometry and calorimeter tilt. Tests were performed indoors in a simulated wind field, using a calibration transfer standard as a mock window, with electrically heated blind slats. Tilt angles of 0 (vertical) to 75º were examined at 15º intervals, with an extra test at 85º. Slat angles of -45º, 0º, 45º, or 70º were also investigated. It was found that tilt angles greater than 60º affect the inward-flowing fraction. Previous results concerning slat angle were also confirmed.Units: Dual