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首页> 外文会议>Annual International Meeting of the American Society of Agricultural and Biological Engineers >EFFECT OF USING DOUBLE LAYERS OF POLYETHYLENE COVER WITH AIR GAP ON CONTROL ENVIRONMENTINSIDE GREENHOUSES
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EFFECT OF USING DOUBLE LAYERS OF POLYETHYLENE COVER WITH AIR GAP ON CONTROL ENVIRONMENTINSIDE GREENHOUSES

机译：用气隙对控制环境的聚乙烯覆盖双层的影响温室

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The effect of using double layers of polyethylene with air gap on the energy transport characteristics and most relative vegetative growth parameters and production of a tomato crop under eastern province climatic condition were studied and compared with the commonly used double layers (without air gap) covering methods. The results of this experimental work show that the greatest values of cooling effect (11.97 °C) and effectiveness of evaporative cooling system (75.05%) were achieved inside the greenhouses covered by double layers of polyethylene with 9 cm air gap (greenhouses 1), whereas, the effectiveness of cooling system (68.18%) occurred inside greenhouse covered by double layers of polyethylene without air gap (greenhouses 2). Greenhouse 1also increased the temperature of cold air just leaving the cooling system by 3.56 °C, while greenhouse 2 increased the interior ambient air temperature by 5.06 °C. Thus, the greenhouse 1, on the average, increased the rate of vegetative growth by 13.1% and fresh yield of tomato crop by 76.13%.
机译：研究了使用空气间隙对能量传递特性和大多数相对相对营养生长参数的影响，并研究了东部省球条件下的番茄作物的影响，并与常用的双层（没有气隙）覆盖方法。该实验工作的结果表明，在具有9cm气隙（温室1）的双层聚乙烯（温室1）覆盖的温室内，在温室内实现了最大的冷却效果（11.97°C）和蒸发冷却系统的有效性（75.05％），虽然，冷却系统的有效性（68.18％）发生在没有气隙的双层聚乙烯（温室2）覆盖的温室内发生的温室内。温室1ALSO增加了冷空气的温度，即将冷却系统留在3.56°C，而温室2将内部环境空气温度增加5.06°C。因此，温室1平均增加了营养增长率的速度增长了13.1％，番茄作物的新鲜产率为76.13％。

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