Trombe walls are the most widely applied passive systems that utilise solar energy for heating massive walls. Although studies have been undertaken in the fields of Trombe wall application and design, the research on the effect of the vent area and the number of vents on the performance of a Trombe wall remains limited. In this context, a parametric study investigating the effect of the vent-to-wall-area ratio on Trombe wall performance was conducted. A computational fluid dynamics model was employed for validation analysis. The results were verified by experimental measurements of temperature. At each step of the parametric study, the vent-to-wall-area ratio in the Trombe wall model was increased by 2% starting from the unvented case, and the results were simulated per ratio. In this study, temperature measurements of the glazing, thermal wall and space were employed as the evaluation criteria. The results of the parametric runs showed that a Trombe wall with eight separate air vents and an 8% vent-to-wall-area ratio provides the maximum heating performance. Furthermore, a monolithic vent configuration with an 18% vent-to-wall-area ratio performed slightly better compared with other configurations of monolithic air vents.

中文翻译：

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通风口/壁面面积比对 Trombe 壁面热性能影响的数值研究

Trombe 墙是应用最广泛的被动系统，它利用太阳能加热大型墙。尽管已经在 Trombe 墙应用和设计领域进行了研究，但关于通风口面积和通风口数量对 Trombe 墙性能影响的研究仍然有限。在这种情况下，进行了一项参数研究，调查通风口与壁面面积比对 Trombe 壁面性能的影响。采用计算流体动力学模型进行验证分析。结果通过温度的实验测量来验证。在参数研究的每个步骤中，Trombe 壁模型中的排气口与壁面面积比从无排气口的情况开始增加 2%，并按比例模拟结果。在这项研究中，玻璃的温度测量，热壁和空间被用作评价标准。参数运行的结果表明，带有八个独立通风口和 8% 的通风口与墙壁面积比的 Trombe 墙提供了最大的加热性能。此外，与其他整体式通风口配置相比，具有 18% 通风口与壁面积比的整体式通风口配置的性能略好。