日光温室土质墙体温度与吸放热量测试分析  

Analysis on Test of Wall Temperature Distribution and Heat Flux in Solar Greenhouse

作　　者：何芬[1,2] 周长吉[1,2] 

机构地区：[1]农业部规划设计研究院,北京100125 [2]农业部农业设施结构工程重点实验室,北京100125

出　　处：《北方园艺》2015年第10期58-61,共4页Northern Horticulture

基　　金：公益性行业(农业)科研专项资助项目(201203002)

摘　　要：以青海西宁地区典型日光温室为研究对象,冬季最冷时段测试和分析了该类型温室梯形土质墙体温度分布及内外表面热通量,研究了日光温室墙体温度变化规律及墙体吸放热特征,以期为合理分析评价墙体保温蓄热性能及构建墙体传热模型提供理论依据。结果表明：墙体在垂直方向温度变化差异不大;厚度方向上墙体内表面测点温度波动较大,晴天日变化幅度达到26.07℃,阴天为8.6~11.6℃。墙体在晴天吸收的总热量为687.84 W/m2,阴1d、阴2d以释放热量为主,向室内释放的总热量分别为640.59W/m2和1 106.99W/m2;墙体外表面在典型天气条件下均向室外释放热量,分别为984.70、1 785.13、1 866.55W/m2。Taking typical solar greenhouse of Xining as object,the temperature distribution and heat flux of trapeziform soil wall in the typical solar greenhouse of Xining were inspected and analyzed in the coldest time of winter,to grasp wall temperature change trend and the characteristic of its heat absorption and release.The results showed that the wall temperature in vertical direction changed little;in horizontal direction,the temperature of wall inside fluctuated greatly,and the day change extent reached 26.07℃under the sunny day,and after two cloudy days,the day change extent reached8.6℃to 11.6℃.The inside of wall absorbed heat reached 687.84W/m2 in sunny,while after one and two cloudy days,the heat released with 640.59 W/m2 and 1 106.99 W/m2.The outside of wall always released the heat in any typical weather,which were 984.7 W/m2,1 785.13 W/m2,1 866.55 W/m2 respectively.In summary,the study is both significant for evaluating the wall heat reservation and heat transfer model.

关 键 词：日光温室 墙体温度 热通量 

分 类 号：S625.1[农业科学—园艺学]