摘要
粮层阻力是粮粒对通过粮堆的气流形成的阻力,即在压力上表现为气流的静压降。它是粮堆通风、粮食干燥系统和计算机模拟过程中的一个重要参数。本试验对小麦、稻谷、玉米等七个品种粮食的粮层阻力值进行测定。用回归分析的方法,在计算机上对数据进行处理,得出了粮堆通风系统设计中粮层阻力的计算公式——P=ahv^6,其结果与实测值较为吻合,可以用于实际生产。
Grain resistance is the resistance of grains to airflow passing grain pile. It is an important parameter for grain pile ventilation, drying system and computer model. In the test, grain resistance values of wheat, paddy, corn and other kinds of grain were measured. Using regression analysis method and computer treatment, the formula (P=ahv^b) which counts the grain resistance in ventilation system design was obtained. The count result agreed with the measure result. The formula can be applied to the practice.
出处
《粮食储藏》
1993年第5期6-10,共5页
Grain Storage
