摘要
为了解大跨度日光温室在典型天气下室内微气候环境特点,对沈阳地区一座跨度12m日光温室阴天、晴天情况下的室内外太阳辐射、空气温度、空气相对湿度以及各壁(土壤、薄膜、后坡、墙体)内表面的热流量、表面温度进行了测试。1月份阴天、晴天测试结果显示:晴天时太阳辐射透过率日均值近60%;揭帘后至夜间(9:00￣23:00),晴天室内空气平均温度比阴天高5.5℃;夜间(18:00￣23:00)0.2m土壤温度平均值晴天为11.6℃、阴天为9.9℃;前屋面、后坡几乎全天从室内吸热,土壤及后墙向室内平均放热量是阴天的1.5倍;晴天室内空气日均相对湿度为87%,阴天为93%。
Experiments for determining solar radiation flux, air temperature, air relative humidity inside and outside, and heat flux and temperature of the wall surfaces （ soil, film, north roof and wall） in clear and overcast days were conducted in a 12m wide sunlight greenhouse without auxiliary heat recourses inside. The results in January showed that the average solar radiation transmissivity was nearly 60 percent in a clear day, the average air temperature inside the greenhouse in a clear day was 5.5℃ higher than that in a overcast day during 9：00-23：00,and the average soil temperature 0.2m below the soil surface was 11.6℃ and 9.9℃ in clear and overcast day, respectively. The results also showed that the south roof and north roof absorbed heat from the inside in whole day. The heat emitted in clear day was 1.5 times of that in overcast day from 18：00 to 23：00. The average air relative humidity was 87 percent and 93 percent in clear and overcast day, respectively.
出处
《沈阳农业大学学报》
CAS
CSCD
北大核心
2005年第4期462-465,共4页
Journal of Shenyang Agricultural University
关键词
日光温室
阴天
太阳辐射
空气温度
相对湿度
热流量
土壤温度
sunlight greenhouse
overcast day
air temperature
solar radiation
relative humidity
heat flux
soil temperature
