可变透光ETFE气枕光热性能研究  

Optical and Thermal Studies of Variable Transmittance ETFE Cushions

作　　者：郑晓宇[1] 何伟[1] 赵万方 庾汉成[2] 秦明辉 ZHENG Xiao-yu;HE Wei;ZHAO Wan-fang;YU Han-cheng;QIN Ming-hui(College of Civil Engineering,Hefei University of Technology;Qinghai College of Architectural Technology)

机构地区：[1]合肥工业大学土木与水利工程学院 [2]青海建筑职业技术学院

出　　处：《建筑热能通风空调》2021年第11期11-15,84,共6页Building Energy & Environment

基　　金：安徽省重点研究与开发计划(S202004a07020038)。

摘　　要：本研究基于合肥市气候条件定制了一种可变透光ETFE气枕。通过Grasshopper平台建立了典型办公室模型和光热联合模拟程序。同时,在合肥市搭建了一个等比例缩小的办公室模型,通过实验验证软件模拟结果。全年动态采光和能耗模拟表明:可变透光ETFE气枕可以有效降低临窗区域照度,增加全年有效采光(450<lux<2000)时长,但会导致远离窗的区域采光不足。可变透光ETFE气枕相较于透明双层玻璃窗拥有更低的太阳得热系数,并能适应室外太阳辐射率变化。在合肥地区气候条件下,本研究所选用的可变透光ETFE气枕相较于透明双层玻璃窗可以减低建筑全年16.33%的能耗。A variable transmittance ETFE cushion was customized based on the climate conditions of Hefei.Through the Grasshopper platform,a typical office model and a optical-thermal simulation program were established.At the same time,a proportionally reduced size office model was built in Hefei to verify the software simulation results by experiments.The simulation of dynamic lighting and energy consumption throughout the year shows that:The variable transmittance ETFE cushion can effectively reduce the illumination of the window-side area and increase the annual useful lighting time(450<lux<2000),but it will cause insufficient lighting in the area away from the window;The variable transmittance ETFE cushion has a lower solar heat gain coefficient than clear double-glazed windows,and this cushion can adapt to the change of outdoor solar radiation rate;In Hefei climate conditions,the variable transmittance ETFE cushion can reduce the energy consumption of the building by 16.33%compared with clear double-glazed windows throughout the year.

关 键 词：ETFE 气枕 GRASSHOPPER 光环境 能耗 建筑模拟 

分 类 号：TU38[建筑科学—结构工程] TU111