京郊地区多种类型日光温室温度对比试验
Temperature Contrast Test of Various Types of Solar Greenhouses in Suburbs of Beijing City
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摘要: 为进一步优化北京市密云区日光温室的结构,提高设施棚室的温度,以密云区现有的3种日光温室为基础,包括主动蓄热型日光温室(G1)、下沉型日光温室(G2)、当地传统的日光温室(G3),利用小气候综合观测仪的温度数据,对比分析了不同天气条件下3种日光温室生长季内的温度变化情况。结果表明:长周期条件下,G1、G2、G3的夜间平均气温分别为14.66、10.21和8.37 ℃;短周期条件下,G1、G2、G3的夜间平均气温分别为15.84、11.08和9.49 ℃;极端低温条件下,G1、G2、G3的夜间平均气温分别为10.63、7.54和6.24 ℃;典型晴天条件下,3座温室的夜间平均气温分别为17.83、11.48和9.16 ℃;典型阴天条件下,3座温室的夜间平均气温分别为9.64、7.03和6.04 ℃。G1型日光温室整体优于G2、G3型日光温室,在极端低温和典型阴天条件下都表现出了较好的保温储温性能,能够在较低温度下满足室内作物的生长要求。因此,主动蓄热型日光温室在北京市密云区具有较好的推广价值。Abstract: In order to further optimize structure of solar greenhouse in Miyun District of Beijing and improve temperature of facility shed,based on three existing solar greenhouses in Miyun District,including active heat storage solar greenhouse(G1),sunken solar greenhouse(G2)and local traditional solar greenhouse(G3),using temperature data of microclimate comprehensive observer,temperature changes of three kinds of solar greenhouses in growing season under different weather conditions were compared and analyzed.Results showed that:undet condition of long cycle,nighttime average temperatures of G1,G2 and G3 were 14.66,10.21 and 8.37 ℃ respectively; under condition of short cycle,nighttime average temperatures of G1,G2 and G3 were 15.84,11.08 and 9.49 ℃ respectively; under extreme low temperature conditions,nighttime average temperatures of G1,G2 and G3 were 10.63,7.54 and 6.24 ℃ respectively; under typical sunny conditions,average night temperatures of three greenhouses were 17.83,11.48 and 9.16 ℃ respectively; under typical cloudy conditions,nighttime average temperatures of three greenhouses were 9.64,7.03 and 6.04 ℃ respectively.G1 solar greenhouse was better than G2 and G3 solar greenhouse as a whole.It showed good thermal insulation and temperature storage performance under extreme low temperature and typical cloudy conditions,and could meet growth of indoor crops at low temperature.Therefore,active heat storage solar greenhouse has good popularization value in Miyun District of Beijing.
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Keywords:
- solar greenhouse /
- temperature /
- active heat storage /
- heat preservation
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