摘要: |
对不同含水率(质量分数)、不同密度麦秸砖墙的导热系数进行了研究,并探讨了不同温度区段对麦秸砖墙导热系数的影响.结果表明:麦秸砖墙导热系数随其含水率的增加而增加,随其密度的增大而升高.不同温度区段影响麦秸砖墙的导热系数,相同含水率麦秸砖墙导热系数随温度区段升高呈近似线性增加.麦秸砖墙含水率应保证小于130%,以使其具有高热阻值,确保其隔热性能. |
关键词: 麦秸砖墙 含水率 导热系数 |
DOI:103969/j.issn1007 9629201306016 |
分类号: |
基金项目:山东省科技攻关项目(2007GG10006003) |
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Experimental Research on Thermal Conductivity of Wheat Straw Bale Wallwith Different Moisture Content |
FU Zhi qian
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Department of Architecture, Shandong University, Jinan 250061, China
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Abstract: |
Thermal conductivities of different density wheat straw bale walls with different moisture content(by mass) were investigated and the effects of different temperature ranges on the thermal conductivities of wheat straw bale walls were discussed. The experimental results show that thermal conductivities of wheat straw bale walls increase with moisture content and density growth. Different temperature ranges have the effects on the thermal conductivities of wheat straw bale walls. With the same moisture content, thermal conductivity of wheat straw bale wall increases linearly with temperature range growth. The moisture content of wheat straw bale wall should be less than 130% for the thermal resistance high enough to ensure its insulation properties. |
Key words: wheat straw bale wall moisture content thermal conductivity |