竖直式太阳能烟囱对大空间自然通风的增益模拟

采用数值分析方法，建立含有内部热源及竖直式太阳能烟囱的大空间厂房二维模型，加入外部拓展计算域，分析自然通风条件下，不同的通风开口方式、太阳能烟囱的不同高宽比对厂房内部气流组织流动的影响，并对照室内各特殊位置处的气流速度、结合空气龄进行分析。结果表明，下进上出式开口方式配合室内热压驱动对厂房内部通风效果增益良好，且当太阳能烟囱高宽比为1.00时，室内气流组织速度均值较高、空气龄较低，增益效果最佳。

Gain Simulation of Vertical Solar Chimneys for Spatial Natural Ventilation

By adopting the numerical analysis method, a two-dimensional model of a large space plant with internal heat sources and vertical solar chimneys has thus been established, with the external expansion calculation domain added to analyze the influence of different ventilation opening modes and of different height width ratios of solar chimneys on the air distribution and airflow in the plant under natural ventilation conditions, followed by an analysis of the air flow velocity at each special location in the room in combination with the air age. The results show that the bottom-in and top-out opening method combined with an indoor hot pressure drive is characterized with a good effect on the internal ventilation of the plant. When the height-width ratio of the solar chimney is 1.00, the average indoor air distribution velocity is high in its value, with a low air age and the best gain effect.