松萝凤梨植物窗帘辐射特性

Radiation characteristics of Tillandsia usneoides plant curtain

通过对松萝凤梨特性的分析,提出利用无根无土的松萝凤梨编织成一种新型植物窗帘,使其既具有植物遮阳的优势,又避免了常规垂直绿化遮阳的缺陷,同时实现与普通遮阳材料一样的操控便捷,是一种性能优良的天然太阳辐射控制器.采用分光光度计测试方法对松萝凤梨叶片全波长范围内的辐射特性进行了测定,得到松萝凤梨叶片的吸收率为0.64,反射率为0.36,透射率为0,推荐松萝凤梨叶片的长波辐射吸收率取为0.83.研究结果表明,采用叶片拼接法测试较小叶片的辐射特性是可行的.以此为基础,建立了松萝凤梨植物窗帘辐射特性计算模型,不同密度的松萝凤梨植物窗帘的吸收率、反射率、透射率由植物窗帘密度和松萝凤梨叶片辐射特性共同决定.

Rootless and soilless Tillandsia usneoides（TU） is introduced to form a new type of plant curtain for its unique characters.TU plant curtain keeps the advantages of general plant shading and avoids their disadvantages.It can be easily operated as the ordinary sunshades and is an excellent natural solar radiation controller.The radiation characteristics of TU leaves for full wavelength were measured by spectrophotometer testing methods.The absorptivity of TU leaves is 0.64,the reflectivity is 0.36 and the transmissivity is 0.The recommended long-wave radiation absorption of TU leaves is 0.83.The research results validate the feasibility to measure the radiation characteristics of small leaves by splicing.Based on the research of TU leaves,a model is built to describe the radiation characteristics of TU plant curtain.The absorption,reflectance,transmission rate of TU plant curtain with different densities are determined by the density of plant curtain and the radiative properties of TU leaf.