粮层深度与粮层阻力关系的试验分析

粮层阻力是粮食干燥，储粮机械通风等工艺设计中的关键参数，本文主要分析了粮层深度与粮层阻力之间的非线性关系，对糙米，小麦和玉米通风实验实测数据进行了多元回归，结果表明三种粮食的粮层深层深度h的指数均大于1，这对新型高大房仓，浅圆仓和立筒仓的通风系统设计有实际意义。

Experiment Report On The Relationship Between Grain Bulk Depth And Its Resistance

Grain bulk resistance is a key parameter in the technological design of grain drying and mechanical ventilation for stored grains.The non-linear relationship between the grain bulk depth and grain resistance was inrestigated.Through experiments with brown rice,wheat and maize,taking practical measurements,and carrying out multiple regression for the data obtained,the results indicated the index values of the depth H for each of the three grains were above 1.This has practical significance to design ventilation systems for the new type high-and-big storage house,the shallow round bin and the silo.