Numerical Simulation Study on the Control Strategies of Active-Passive Heating Systems in Solar Greenhouse
Solar greenhouse,as the main agricultural facilities for planting counter-seasonal vegetables in the northern region of China,have made an important contribution to farmers'income,employment and improvement of people's living standards,but the level of active regulation of the wall and its regulation of the thermal environ-ment in the greenhouse is still relatively weak.Therefore,this paper presents an active and passive sensible heat storage wall heating system for solar greenhouse,and studies the operation control strategies of the system by nu-merical simulation.The results show that,combined with the effect of wall heat release and night greenhouse ther-mal environment improvement,the optimal night heat release control strategies for the solar greenhouse heat stor-age wall heating systems are the active heat release wind speed of 4～3～5 m/s,and the total heat release of the wall is 33.83 MJ,which is 22.92%higher than that of the passive heat release mode.
olar greenhousethermal storage heating systemscontrol strategiesnumerical analysis
万方数据
维普
