饲料原料吸湿动力学模型研究  

Research on Moisture Absorption Dynamic Model of Feed Materials

作　　者：刘来亭[1] 杨覃 蔡凤英[2] 张勇[1] 董浩 王梦晨 LIU Laiting;YANG Tan;CAI Fengying;ZHANG Yong;DONG Hao;WANG Mengchen(School of Biological Engineering,Henan University of Technology,Henan Zhengzhou 450000,China;School of Chemistry and Chemical Engineering,Henan University of Technology,Henan Zhengzhou 450000,China)

机构地区：[1]河南工业大学生物工程学院,河南郑州450000 [2]河南工业大学化学与化工学院,河南郑州450000

出　　处：《饲料工业》2021年第21期34-40,共7页Feed Industry

基　　金：河南省自然科学基金[162300410048]。

摘　　要：试验通过在不同温度(25、35、45℃和55℃)、湿度(32%、54%和74%)环境下,获得玉米、豆粕、菜粕、麦麸的吸湿曲线,并通过数据分析筛选出较优模型,发现饲料原料粉体吸湿动力学方程的适用度顺序为:双指数速率曲线模型>一级速率曲线模型>一元二次速率曲线模型>零级速率曲线模型;拟合出饲料原料吸湿动力学模型方程的决定系数(R2)均在0.9918以上,具有较好的拟合度。In this experiment,under different temperatures(25,35,45℃and 55℃)and humidity(32%,54%and 74%)environment,corn,soybean meal,rapeseed meal,wheat bran were obtained.Moisture ab⁃sorption curve,and through data analysis to screen out a better model,it was found that the order of suit⁃ability of the feed material powder moisture absorption dynamic equation was as the followings:double exponential rate curve model>first-order rate curve model>one-dimensional quadratic rate curve mod⁃el>zero-order rate curve model;the R^(2) that fit the moisture absorption dynamics model equation of feed ingredients was above 0.9918,which had a good degree of fit.

关 键 词：原料 吸湿率 相对湿度 吸湿曲线 拟合 

分 类 号：S816.34[农业科学—饲料科学]