Application Research on the Warming Effect of Solar Active Heat Storage and Release System in Greenhouse with Flexible Wall
To promote the development of greenhouses,the warming effects of the system on air temperature of different heights and soil temperature of different depths inside the greenhouse were analyzed by studying the solar active heat storage and release system in the greenhouse with flexible wall.The research showed that before and after the winter solstice,when the lowest outdoor temperature was about-18℃,the lowest indoor temperature of the innovative greenhouse was above 11℃,the temperature difference between indoor and outdoor of the innovative greenhouse was above 22℃throughout the day,and the duration of indoor temperature above 15℃of the innovative greenhouse was more than 11 hours.In terms of temperature uniformity,the maximum deviation of indoor minimum air temperature was 19.00%with an average of 5.72%.The maximum deviation of the three heights of 0.2 m,0.5 m and 1.5 m was 17.13%.The highest soil temperature at depths of 0.1 m,0.2 m and 0.4 m throughout the day was above 20℃,and the lowest indoor soil temperature of those was above 16℃with an average soil temperature of 18.38℃.In terms of lowest soil temperature uniformity,the maximum deviation of the lowest indoor soil temperature was 10.31%with an average of 6.80%.The maximum deviation of the three depths of 0.1 m,0.2 m and 0.4 m was 7.57%.The greenhouse with flexible wall equipped with the solar active heat storage and release system met the relevant indicators requirements for auxiliary heating greenhouses in terms of temperature uniformity and soil temperature uniformity in the agricultural standard'Evaluation Specification for Efficiency of Greenhouses',which could be promoted and applicated.
heat storage and releaseflexible wallgreenhousewarming
万方数据
维普
