遮阳产品对空调能耗影响的参数化研究

Parametric Study of Window Attachment on Energy Consumption of Air Conditioning

本文针对不同遮阳产品的参数对住宅建筑空调能耗的影响进行了模拟研究。首先,选取了可能影响卷帘和蜂巢帘性能的9个参数(透射率、反射率、辐射率等),并根据当前同类主流产品的参数范围为每个参数设置高、中、低3个值,对参数进行排列组合分别得到9 520种和9 072种遮阳产品。然后,以美国制冷和制热为主的两座典型城市为例,利用WINDOW和EnergyPlus软件分别建立窗户模型和典型住宅建筑模型并在EnergyPlus中进行窗户的全年能耗模拟。最后,提出了年能效指标(Annual Energy Performance)以表征不同遮阳产品对建筑能耗的影响并对比分析不同参数下遮阳产品的能耗性能,最终根据对参数的敏感性分析确定了影响不同类型遮阳产品能效的关键参数。研究结果表明:可见光透射率和反射率是影响遮阳产品性能的2个主要因素。

The energy performance of window attachment and the impact of different parameters on energy consumption of air conditioning in residential buildings were analyzed in this paper.First,nine window attachment energy performance related parameters of roller shade and cellular shade were chosen and three values of high,medium,and low were set for each parameter according to the current mainstream product parameter range to obtain 9 520 and 9 072 parameters combination respectively.Then,a window model and a building model of two typical cities with cooling dominated and heating dominated in the U.S.were established in the Energyplus and WINDOW respectively for energy consumption simulation.Finally,the annual energy performance(Annual Energy Performance)indexes were developed for comparing the window attachment impact on building energy consumption and the key parameters were determined through parameter sensitivity analysis.The results show that solar transmittance and reflectance are two main factors affecting the performance of window attachment.