How to create a healthy and comfortable indoor environment without causing a substantial increase in energy consumption has become a strategic problem that the development of all countries must face and solve. According to the climatic conditions of Qinba Mountains in China, combined with the characteristics of local rural residential buildings and residents’ living habits, the field survey and theoretical analysis were used to study the thermal environment status and the heating energy consumption condition of local rural residential buildings. The thermal design method of walls for the local rural energy-saving buildings based on the indoor uniform radiation field was explored by using the outdoor comprehensive temperature function expressed by the fourth-order harmonic Fourier series as the boundary condition of the wall thermal analysis. ANSYS CFX was adopted to study the suitability of the energy-saving wall structure designed by the above method. The results show that the indoor thermal environment of local rural residential buildings in winter is not ideal and the heating energy consumption is high, but this area has the geographical advantage to develop solar energy buildings. It is proposed that the indoor thermal comfort temperature of local rural residential buildings in winter should not be lower than 14°C. When the internal surface temperature of the external walls in different orientations are equally based on the design principle of uniform radiation field, the heat transfer coefficient of the east wall, the west wall, and the north wall of the local rural residential buildings is 1.13 times, 1.06 times, and 1.14 times of the south wall heat transfer coefficient, respectively. The energy-saving structural wall with KPI porous brick as the main material and the south wall heat transfer coefficient of 0.9 W/(m²·K) is the most suitable energy-saving wall for local rural residential buildings.

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基于均匀辐射场的秦巴山区农村建筑墙体节能设计研究

如何在不大幅增加能耗的情况下创造健康舒适的室内环境，已成为各国发展所必须解决的战略问题。根据我国秦巴山区的气候条件，结合当地农村民居建筑的特点和居民的生活习惯，通过实地调查和理论分析，研究了当地农村民居的热环境状况和供热能耗状况。建筑物。以四阶谐波傅里叶级数表示的室外综合温度函数作为墙体热分析的边界条件，探索了基于室内均匀辐射场的农村节能建筑墙体的热设计方法。采用ANSYS CFX对以上方法设计的节能墙体结构的适用性进行了研究。结果表明，冬季当地农村居民住房的室内热环境不理想，供热能耗高，但该地区具有发展太阳能建筑物的地理优势。建议冬季当地农村居民住房的室内热舒适温度不应低于14°C。根据均匀辐射场的设计原理，当不同方向的外墙内表面温度均等时，当地农村居民住房的东，西，北壁的传热系数为1.13倍。分别是南壁传热系数的1.06倍和1.14倍，分别。以KPI多孔砖为主要材料的节能结构墙，南墙传热系数为0.9 W /（m² ·K）是最适合当地农村住宅建筑的节能墙。