基于太阳能墙体的PHDC技术在湿热地区的应用设计

Application Design of PHDC Technology Based on Solar Wall in Hot and Humid Area

目前,学校建筑室内降温方式主要分为空调系统或者风扇等,然而空调系统的初投资和运行成本都比较高,而风扇的降温效果不是很理想。学校经费紧张、常规能源紧缺,这无疑都不是环保节能降温的方式。因此,将重点放在整合被动、经济高效的冷却策略以改善建筑内部环境非常重要。设计集合了两种被动式系统,即利用相变材料的太阳能墙体和被动冷风式蒸发冷却下向通风系统:利用蒸发降温过程产生的冷空气,结合除湿系统,通过太阳能墙体内空气的自然流动而强化室内自然通风,对建筑进行通风降温,同时除去建筑内部的湿气,实现热量的控制和舒适的冷却,与机械冷却相比,能耗更低,成本更低,无需使用风机和管道,进而实现最大可能的节能减排。

At present,the indoor cooling methods of school buildings are mainly divided into air conditioning system or fan,but the initial investment and operation cost of air conditioning system are relatively high,and the cooling effect of fan is not very ideal.Schools are short of funds and conventional energy,which is no doubt not the way of environmental protection,energy conservation and cooling.Therefore,it is very important to integrate passive,cost-effective cooling strategies to improve the internal environment of buildings.This design integrates two passive systems,namely,the solar wall using phase change materials and the passive cold air evaporative cooling downward ventilation system:using the cold air generated by the evaporative cooling process,combined with the dehumidification system,through the natural flow of air in the solar wall to strengthen the indoor natural ventilation,ventilate and cool the building,and remove the moisture inside the building,Compared with mechanical cooling,it has lower energy consumption,lower cost,no need to use fans and pipes,so as to achieve the maximum possible energy saving and emission reduction.