山东地区农业日光温室建筑围护结构材料热工性能分析
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摘要
日光温室是中国农业设施的重要组成部分,而后墙围护结构作为温室主要构件,其热工设计不仅影响内部温度环境,而且对温室大棚的生产效益有直接影响。该研究首先介绍了山东地区9种不同构造类型的温室墙体,通过建筑围护结构传热效果,分析了9种温室墙体的热阻、墙体材料比热容、墙体材料蓄热系数及惰性指标对温室大棚温度环境的影响;其次选择陶粒混凝土组合成新型墙体,进而分析墙体热物性特征,与9种典型日光温室墙体的热物性比较。结果表明:陶粒混凝土与黏土砖等常见日光温室墙体材料相比,密度较小,但热阻高;同等密度下蓄热能力优于黏土砖,材料可采用固废物加工而成,绿色环保;从保温、蓄热、环保等层面讲,陶粒混凝土是一种适合于温室后墙体的材料。
The greenhouse is an important part of the agricultural facilities in China.As the main component of greenhouse,the north wall envelope structure not only affects the internal temperature environment,but also has a direct impact on the production efficiency of greenhouse.Firstly,the nine different types of greenhouse wall in Shandong Province were introduced,through the heat transfer effect of the building enclosure,the effects of heat resistance,heat capacity,coefficient of thermal storage and thermal inertia index of nine kinds of greenhouse wall on greenhouse temperature environment were analyzed.Secondly,ceramsite concrete was selected to form a new type of wall,and then the thermal properties of the wall were analyzed,compared with the thermal properties of nine typical solar greenhouse walls.The results showed that ceramsite concrete had smaller density but higher thermal resistance than clay brick and other common wall materials in greenhouse in the past.In addition,its heat storage capacity was better than clay brick under the same density,and the material could be processed by solid waste,which was green and environmental protection.According to the aspects of heat preservation,heat storage and environmental protection,ceramsite concrete was a kind of material suitable for the back wall of greenhouse.
The greenhouse is an important part of the agricultural facilities in China.As the main component of greenhouse,the north wall envelope structure not only affects the internal temperature environment,but also has a direct impact on the production efficiency of greenhouse.Firstly,the nine different types of greenhouse wall in Shandong Province were introduced,through the heat transfer effect of the building enclosure,the effects of heat resistance,heat capacity,coefficient of thermal storage and thermal inertia index of nine kinds of greenhouse wall on greenhouse temperature environment were analyzed.Secondly,ceramsite concrete was selected to form a new type of wall,and then the thermal properties of the wall were analyzed,compared with the thermal properties of nine typical solar greenhouse walls.The results showed that ceramsite concrete had smaller density but higher thermal resistance than clay brick and other common wall materials in greenhouse in the past.In addition,its heat storage capacity was better than clay brick under the same density,and the material could be processed by solid waste,which was green and environmental protection.According to the aspects of heat preservation,heat storage and environmental protection,ceramsite concrete was a kind of material suitable for the back wall of greenhouse.
引文
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[2] 李清明,魏珉,张大龙山东省日光温室结构类型[J].农业工程技术,2018,19(5):28-34.
[3] 佟国红,白义奎,赵荣飞,等.日光温室复合墙与土墙热性能对比分析[J].沈阳农业大学学报,2011(6):718-722.
[4] 周长吉.“西北型”日光温室的结构研究[J].新疆农机化,2005(6):37-38.
[5] 梁建龙,王旭峰.阿拉尔垦区日光温室墙体的保温设计[J].塔里木农垦大学学报,2002,14(1):29-30.
[6] 柴立龙,马承伟,籍秀红,等.北京地区日光温室节能材料使用现状及性能分析[J].农机化研究,2007(8):17-21.
[7] ZHANG L Y,YANG Y X,ZHANG H D,et al.Analysis of thermal insulation peformance of aerated concrete block wall in solar greenhouse[J].IOP Conference Series:Earth and Environmental Science,2018,170:1-5.
[8] LIU S M,XUE Q Y,LI C,et al.Effects of different wall treatments on thermal insulation of solar greenhouse in Tianjin area[J].Chinese Agricultural Science Bulletin,2012,28(35):170-179.
[9] FAN P S,FENG W M,LU Y Y,et al.Effects of different walls on thermal insulation properties of solar greenhouse[J].Shandong Agricultural Sciences,2014,46(3):25-27.
[10] 张立芸,徐刚毅,马承伟.日光温室新型墙体结构性能分析[J].沈阳农业大学学报,2006,37(3):459-462.
[11] 陈端生,郑海山,刘步洲.日光温室气象环境综合研究:I.墙体,覆盖物热效应研究初报[J].农业工程学报,1990,6(2):77-81.
[12] 陈端生.北京地区节能型日光温室温光环境的研究[M].北京:中国农业科技出版社,1993.
[13] 陈端生.中国节能型日光温室的理论和实践[J].农业工程学报,2001,17(1):22-26.
[14] 陈青云.日光温室的实践与理论[J].上海交通大学学报(自然科学版),2008(5):10-13.
[15] 陈端生.中国节能型日光温室建筑与环境研究进展[J].农业工程学报,1994(10):124-126.
[16] 陈超.现代日光温室建筑热工设计理论与方法[M].北京:科学出版社,2017.