The effect of wind speed on the updraft velocity and the overall performance of solar chimney power plants (SCPP) is still unclear, either positive or negative. This study is partially to investigate the effect of wind speed over the chimney on the updraft velocity. Therefore, an experimental SCPP porotype (installed in Aswan, Egypt) was used. The measured parameters were the wind speed over the chimney, ambient temperature, solar radiation intensity, and the updraft velocity at the exit of the chimney tower. The measurements were accomplished on several clear sunny days under different climatic conditions and wind speed levels. The results showed that increasing wind speed at the top of the chimney increases the updraft velocity, thereby increasing the plant performance. Wind speed values higher than 2.1 m/s generate a considerable updraft velocity inside the chimney despite the absence of the buoyancy effect. During the night times (in the absence of solar energy and heat storage effect in the collector elements), high wind speed (>6 m/s) over the chimney tower can generate updraft velocity equal to that generated under high solar insolation based on the ejector concept. However, a wind speed >6 m/s significantly increases the heat losses from collector surfaces and reduces the buoyancy effect; consequently, the generated updraft velocity in the chimney tower is attributed mainly to the ejection effect of the crosswind over the chimney.

风速对上升气流速度和太阳能烟囱发电厂 (SCPP) 整体性能的影响仍不清楚，无论是正面的还是负面的。本研究的部分目的是研究烟囱上方的风速对上升气流速度的影响。因此，使用了实验性 SCPP 孔型（安装在埃及阿斯旺）。测量参数为烟囱上方的风速、环境温度、太阳辐射强度和烟囱塔出口处的上升气流速度。在不同的气候条件和风速水平下，在几个晴朗的晴天完成了测量。结果表明，增加烟囱顶部的风速会增加上升气流速度，从而提高设备性能。风速值高于 2。尽管没有浮力效应，但 1 m/s 会在烟囱内产生相当大的上升气流速度。根据喷射器概念。然而，风速 >6 m/s 会显着增加集热器表面的热损失并降低浮力效应；因此，烟囱塔中产生的上升气流速度主要归因于侧风在烟囱上方的喷射效应。6 m/s）在烟囱塔上空产生的上升气流速度与基于喷射器概念的高日照下产生的上升气流速度相同。然而，风速 >6 m/s 会显着增加集热器表面的热损失并降低浮力效应；因此，烟囱塔中产生的上升气流速度主要归因于侧风在烟囱上方的喷射效应。6 m/s）在烟囱塔上空产生的上升气流速度与基于喷射器概念的高日照下产生的上升气流速度相同。然而，风速 >6 m/s 会显着增加集热器表面的热损失并降低浮力效应；因此，烟囱塔中产生的上升气流速度主要归因于侧风在烟囱上方的喷射效应。