红枣平衡含水率模型的拟合研究  

Determination of Equilibrium Miosture Content for Jujube

作　　者：杨林青[1] 牛智有[2] 

机构地区：[1]西北农业大学 [2]华中农业大学

出　　处：《农业工程学报》1993年第1期92-98,共7页Transactions of the Chinese Society of Agricultural Engineering

摘　　要：应用静态法测定了红枣在10～50℃和全相对湿度范围内的吸湿、解吸平衡含水率,分析了相对湿度、温度对平衡含水率的影响。以相对误差、标准差为评价指标,对Modified—Henderson等四个方程与测定数据的拟合程度进行了比较,得到了描述红枣吸湿,解吸平衡含水率曲线模型。In this paper,a static gravimetric method was used. Equilibrium moisture content (EMC)for adsorption and des-orption of two varieties jujube were determined at 10-50℃ and all range of relative humidity,and analyse effect relative humidity and temperature on EMC. Modified - Henderson, Chung - Pfost, Modified-Halsey, Modified-Oswin e-quation were compared for their ability to fit experimental results. Comparison are based on relative percentage divia-tion and standard error,and obtained model that describes adsorption and desorption isotherms of jujube.

关 键 词：大枣 含水率 平衡模型 

分 类 号：S665.109.2[农业科学—果树学]