玉米秸秆板传热性能分析  

Analysis of Heat Transfer Performance of Corn Straw Board

作　　者：孟艺玮 陈丽梅[1] 徐金荣 张程 MENG Yiwei;CHEN Limei;XU Jinrong;ZHANG Cheng(College of Engineering Technology, Jilin Agricultural University, Changchun 130118 , China)

机构地区：[1]吉林农业大学工程技术学院

出　　处：《吉林农业大学学报》2019年第4期483-488,共6页Journal of Jilin Agricultural University

基　　金：公益性行业(农业)科研专项(201503116-06);吉林省科技发展重点项目(吉科合字第20150204029SF)

摘　　要：试验将玉米秸秆用于建筑外墙保温的新型墙体材料中,采用二次通用旋转组合试验设计安排试验,以玉米秸秆板导热系数为试验指标,选择的试验因素有4个,分别为容重、秸秆板厚、碎秸秆湿度、施胶量,每个因素选5个水平。通过多次试验得到不同因素水平组合下的导热系数值,利用DPS统计分析方法对试验数据进行分析,得到试验所选因素与导热系数之间存在的数学关系,进而得到导热系数较理想时的玉米秸秆保温板因素水平组合。通过DPS统计分析软件分析得到导热系数最小时对应的因素水平,结果表明:在容重0. 76 g/cm^3,秸秆板厚11.8 cm,碎秸秆湿度12. 1%,施胶量12%时导热系数较小,为0. 037 29 W/(m·K).In this study,corn straw was used as new wall material for building exterior wall insulation,quadratic general rotary experiment method was designed,thermal conductivity of corn straw was used as experiment index,and four experimental factors were selected,including bulk density,corn straw board thickness,broken corn straw moisture and the use of adhesive,for each of which there are five levels. The thermal conductivity value of different factors and levels was obtained through multiple experiments. The experimental data were analyzed by DPS statistical analysis method,and the mathematical relationship between the selected factors and thermal conductivity was determined,and the combination of factors and levels of corn straw insulation board with optimal thermal conductivity was further obtained. Through the analysis of DPS statistical analysis software,the corresponding factor level was determined when thermal conductivity was minimum. The results show that the optimal parameter combination can be achieved when bulk density is 0. 76 g/cm3,corn straw board thickness is 11. 8 cm,broken corn straw moisture is 12. 1%,and the use of adhesive is12%.

关 键 词：玉米秸秆板 二次通用旋转组合试验设计 导热系数 

分 类 号：TU86[建筑科学] S216.[农业科学—农业机械化工程]