基于植被冠层动态光学参数的种植屋面传热计算模型  

Heat Transfer Model of Green Roof Based on Dynamic Optical Parameters of Vegetation Canopy

作　　者：邓智超 张磊[1] 张玉[1] 马路遥[1] 孟庆林[1] 阮琳 代色平 李智琦 DENG Zhichao;ZHANG Lei;ZHANG Yu;MA Luyao;MENG Qinglin;RUAN Lin;DAI Seping;LI Zhiqi(South China University of Technology,Guangzhou 510641,Guangdong,China;Guangzhou Institute of Forestry and Landscape Architecture,Guangzhou 510405,Guangdong,China)

机构地区：[1]华南理工大学,广东广州510641 [2]广州市林业和园林科学研究院,广东广州510405

出　　处：《建筑科学》2018年第10期115-120,共6页Building Science

基　　金：国家重点研发计划"建筑全性能仿真平台内核开发"(2017YFC0702200);广东省重大科技专项"节能减排屋顶绿化配套产品研发和示范"(2013A011401004)

摘　　要：太阳辐射是种植屋面主要的热量来源。为了描述植被冠层吸收和透过的太阳辐射能量,需要确定植被冠层的光学参数,即太阳辐射吸收率和透过率。已有的种植屋面传热计算模型将光学参数简化为固定不变的常数,无法描述太阳辐射在植被冠层内的动态传输过程。本文基于植被冠层辐射传递Beer定律,建立动态光学参数计算模型,并将其整合至种植屋面传热计算模型中,将计算值与种植屋面实测值进行比较,验证模型的准确性。Solar radiation is the main heat source of green roof. The solar radiation absorbance and transmittance of vegetation canopy are key parameters to calculate the net radiation fluxes of the vegetation and substrate. However, the existing green roof heat transfer models have simplified these parameters as constants, which can＇t help to describe the dynamic transfer process of solar radiation in vegetation canopy accurately. In the present study, a dynamic optical parameter calculation model based on Beer＇s law is integrated into the heat transfer model of green roof, so as to verify the accuracy of the improved green roof model by comparing its predictions with measured values.

关 键 词：种植屋面 植被冠层 动态光学参数 传热计算 

分 类 号：TU111[建筑科学—建筑理论]