The largest amount of energy in buildings is consumed to provide heating, cooling, and ventilation. Therefore, a practical solution such as using renewable energy sources can be considered to reduce energy costs and pollutants. In addition, architecture principles must be varied to utilize passive solar energy and also to reduce energy losses. In this research, a numerical study is presented to investigate the thermal behavior of TW-FR (Trombe wall placed in a fenestrated room) in the semiarid region of Tunisia. Computational fluid dynamic (CFD) simulation of fluid flow and heat transfer shows good agreement with published data in literature. The thermal comfort level was calculated according to ASHRAE (55-2013). The results show that (i) the normal Trombe wall cannot assure a satisfactory comfort level even in summer conditions and a higher vertical temperature gradient can take a value of 15°C, and the Trombe wall is shown to be more efficient in heating mode in the studied semi-arid region compared to cooling; (ii) the operative temperature for the coldest winter is between 17.85 and 19.85°C. The air temperature gradient in the comfort ranges between the head and feet is 2.3°C; and (iii) the Trombe wall is an excellent solution for Sousse city weather; it is suggested that the passive system (TW-FR) will be examined for a whole year to have a precise evaluation of its efficiency.

中文翻译：

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半干旱气候下被动式太阳能建筑用Trombe墙热性能的数值研究

建筑物中消耗的能源最多，以提供供暖，制冷和通风。因此，可以考虑采用诸如使用可再生能源的实用解决方案来减少能源成本和污染物。另外，必须改变架构原理以利用无源太阳能并且还减少能量损失。在这项研究中，提供了一个数值研究来研究在突尼斯半干旱地区的TW-FR（放置在开窗房间中的Trombe墙）的热行为。流体流动和传热的计算流体动力学（CFD）模拟与文献中的已公开数据显示出很好的一致性。根据ASHRAE（55-2013）计算热舒适度。结果表明：（i）普通的Trombe墙即使在夏季条件下也不能保证令人满意的舒适度，较高的垂直温度梯度可以达到15°C，并且在加热模式下Trombe墙在加热模式下表现出更高的效率。与冷却相比，研究的半干旱地区；（ii）最冷的冬天的工作温度在17.85至19.85°C之间。头部和脚部之间的舒适范围内的气温梯度为2.3°C；（iii）Trombe墙是苏斯市区天气的绝佳解决方案；建议对被动系统（TW-FR）进行一年的检查，以对其效率进行精确评估。（ii）最冷的冬天的工作温度在17.85至19.85°C之间。头部和脚部之间的舒适范围内的气温梯度为2.3°C；（iii）Trombe墙是苏斯市区天气的绝佳解决方案；建议对被动系统（TW-FR）进行一年的检查，以对其效率进行精确评估。（ii）最冷的冬天的工作温度在17.85至19.85°C之间。头部和脚部之间的舒适范围内的气温梯度为2.3°C；（iii）Trombe墙是苏斯市区天气的绝佳解决方案；建议对被动系统（TW-FR）进行一年的检查，以对其效率进行精确评估。