储粮机械通风效果均匀性的评价方法拓展  

Expansion of Evaluate Methods for mechanical Ventilation Uniformity in Grain Storage

作　　者：丁超[1] 杨国峰[1] 

机构地区：[1]南京财经大学食品科学与工程学院,江苏南京210003

出　　处：《粮食与饲料工业》2009年第11期8-10,共3页Cereal & Feed Industry

基　　金：国家"十一五"科技支撑计划项目资助(2006BAD08B05);江苏省高技术计划(农业)项目资助(BG2007340)

摘　　要：通风均匀性是衡量粮仓机械通风系统科学性、合理性和经济性的重要指标。在线性拟合的基础上,提出利用线性拟合和标准差有机结合的方法对降温、降水后全仓粮食温度、水分的均匀性进行评价。在拟合方程y=ax+b中,a≤0.5表示全仓数据均匀性好,反之均匀性差。但此法不宜用于粮堆高度超过4 m的就仓干燥实验。Ventilation uniformity is an important index for measuring the scientific characters, rationality and economic performance of the mechanical ventilation system. A method in combination of linear regression and standard difference was put forward to evaluate the uniformity of a whole storage after reduction of grain temperature and humidity was presented based on linear regression. In the fitting equation y = ax ＋ b, if a≤0.5, it shows that the data are uniform; conversely, if a≥0.5, the data uniformity is not good. This evaluation method is not suitable for the mechanical aeration for drying grain stack above 4 m in storage.

关 键 词：粮仓 机械通风 均匀性 线性拟合 

分 类 号：S379[农业科学—农产品加工]