【摘要】 农村地区住宅夏季空调能耗较大，选择绿色节能的制冷方式，对农宅的节能减排具有重要意义。将太阳墙系统与地埋管系统相结合，设计出一种新型通风系统，该系统不仅能够有效解决太阳墙白天吸热多、夜间散热快的问题，而且具有良好的制冷效果。选取典型的夏季晴天工况，采用Fluent数值模拟和实物实验相结合的方法，分析耦合系统的制冷性能和经济效益，并提出应用于胶东地区农宅的节能改造方案。研究表明：夏季系统运作期间，室内平均温度保持在20.8～24.2℃,较对照房间降低6.15℃左右；7:00-17:00时段，系统出风口温度稳定在22.2℃左右，平均温降和最高温降分别为5.52℃和6.8℃。研究结果对于当前新能源利用、节能减排、改善室内舒适度、节能改造农宅和新建农宅具有较好的参考价值。更多还原

【Abstract】 The residential air-conditioning energy consumption of rural areas in summer is relatively large. Choosing green and energy-saving cooling methods is of great significance for energy conservation and emission reduction in rural houses. A new type of ventilation system is designed by combining the solar wall system with the buried pipe system, which can not only effectively solve the problem that the solar wall absorbs much heat during the day and dissipates heat quickly at night, but also has a good cooling effect. Operating conditions on typical sunny day in summer are selected. Fluent numerical simulation and physical experiment are combined to analyze the cooling performance and economic benefits of the coupled system and to propose an energy-saving retrofit scheme to farm houses in Jiaodong area. The study shows that during the operation of the system in summer, the average indoor temperature is maintained at 20.8～24.2 ℃, which is about 6.15 ℃ lower than that of the control room; during the period of 7:00-17:00, the temperature of the system outlet is stabilized at about 22.2 ℃, and the average temperature drop and the maximum temperature drop are 5.52 ℃ and 6.8 ℃, respectively. The results of the study have good reference value for the current new energy utilization, energy saving and emission reduction, improvement of indoor comfort, and energy-saving retrofit of farm houses and new farm houses.更多还原