低碳光电模块化板房的降温减碳实效——以广州地区为例

Effectiveness of Low-carbon Photovoltaic Modular Temporary Housing in Cooling and Carbon Reduction:Taking Guangzhou Area as an Example

近年来,建筑的建造与运行占我国全社会能耗的比例高达32%,转变建造方式与深化运行节能已成为建筑业节能的重点。为研究低碳光电模块化板房的降温减碳效果,在广州市天河区搭建3个测试房间进行降温减碳对比实测,将低碳模块化BAPV(建筑附着光伏)板房、BIPV(光伏建筑一体化)板房与普通板房的屋顶内表面温度、外墙内表面温度、室内空气温度及空调耗电量等进行对比分析。测试结果表明:对于广州地区,在自然通风工况下,低碳模块化BAPV板房与BIPV板房相比普通板房能明显降低房间内表面温度和空气温度,改善室内热舒适环境;在空调工况下,低碳模块化BAPV板房与BIPV板房相比普通板房能有效降低空调耗电量,节能减碳率可达18.7%,减碳效果显著。

In recent years,the construction and operation of buildings have accounted for as much as 32 percent of Chinese total social energy consumption,and transforming the construction method and deepening the operation of energy conservation have become the focus of energy conservation in the construction industry.In order to study the cooling and carbon reduction effect of low-carbon photovoltaic modular rooms,three test rooms were built in Tianhe District of Guangzhou City to conduct comparative measurements of cooling and carbon reduction,and to compare and analyse the internal surface temperature of the roof,the internal surface temperature of the external wall,the indoor air temperature and the air conditioning power consumption of low-carbon modular BAPV(building attached photovoltaic)and BIPV(building integration photovoltaic)rooms with that of the ordinary rooms.The test results show that for Guangzhou area,under natural ventilation conditions,low-carbon modular BAPV and BIPV rooms can significantly reduce the internal surface temperature and air temperature of the room compared with ordinary rooms,improving the indoor thermal comfort environment;under air-conditioning conditions,low-carbon modular BAPV and BIPV rooms can effectively reduce the power consumption of air-conditioning compared with ordinary rooms,with an energy-saving and carbon-reducing rate of up to 18.7%,which is a remarkable effect of carbon-reducing.