温室太阳能-土壤蓄热系统自控及节能分析

Analysis of energy saving and automatic controlling of solar energy-soil heat storage system in greenhouse

日光温室凭借其保温、蓄热的特点,在中国北方得到了大面积推广应用,但其缺点是极易受极端季节温度限制。为满足作物生长发育要求,提高太阳能在温室中的利用效率,以某个采用太阳能-土壤蓄热系统的日光温室为研究对象,进行相应的试验,通过传感器测得的数据分析其自控功能和节能效果。结果表明:太阳能-土壤蓄热系统通过温度控制收集并存储太阳能,对作物根部进行加温,保证作物生长所需的根部温度,节能效果显著。证明系统的可行性,方便后期推广应用。

Solar greenhouse has been widely applied in northern China due to its characteristics of heat preservation and heat storage,but it is easily limited by extreme seasonal temperature.In order to meet the requirements of crop growth and development and improve the utilization efficiency of solar energy in greenhouse,a solar greenhouse which adopts solar energy and soil heat storage system is taken as the research object,and the corresponding experiment is carried out.The automatic control function and energy saving effect are analyzed through the data measured by the sensor.The results showed that the solar energy-soil heat storage system collected and stored solar energy through temperature control,and heated the root of crops to ensure the root temperature needed for crop growth,and the energy saving effect was remarkable.The feasibility of the system is proved to be convenient for later promotion and application.