种植屋面正交试验研究  

Study on Orthogonal Experiment of Planted Roof

作　　者：孙乐祥 白雪莲[1] 余月新 梁庆真 

机构地区：[1]重庆大学城市建设与环境工程学院,重庆400045 [2]浙江城市空间建筑规划设计院有限公司,浙江丽水323000 [3]重庆大学生物工程学院,重庆400044

出　　处：《煤气与热力》2014年第2期22-28,共7页Gas & Heat

基　　金：中美清洁能源联合研究中心建筑节能合作项目(2010DFA72740-03-06);中央高校基本科研业务费科研专项(106112012CDJZR210005)

摘　　要：通过对种植屋面能耗产生影响的土壤厚度、植物高度和叶面积指数(LAI)三因素三水平正交试验研究,分析影响种植屋面能耗的因素的主次顺序,判断因素的显著性,为重庆办公建筑种植屋面参数的选取提供参考。影响全年能耗的因素中土壤厚度、植物高度和LAI的影响为高度显著,土壤厚度×LAI、植物高度×LAI的影响为显著。重庆办公建筑粗放式种植屋面在土壤厚度为0.3 m、植物高度为0.3 m、LAI为5时,全年能耗最小,为59.57 kW·h/(m2·a)。Factors affecting energy consumption of planted roof include soil thickness, plant height and leaf area index （LAI）. Through the study on orthogonal experiment of three factors and three levels, the primary and secondary order of the factors affecting energy consumption of planted roof is analyzed, and the significance of the factors is assessed to provide the reference for selection of planted roof parameters on office buildings in Chongqing City. In these factors affecting the annual energy consumption, the influences of soil thickness, plant height and LAI are highly significant, and the influences of soil thickness x LAI and plant height × LAI are significant. The annual minimum energy consumption of extensive planted roof on office buildings in Chongqing City is 59.57 kW · h/（ m2 · a） when the soil thickness is 0.3 m, the plant height is 0.3 m, and the LAI is 5.

关 键 词：种植屋面 正交试验 能耗模拟 土壤厚度 植物高度 叶面积指数 

分 类 号：TU995[建筑科学—供热、供燃气、通风及空调工程]