烟草导热系数与含水率的变化关系  

Study on the Relation Ship Between Thermal Conductivity and Water Content of Tobacco Stack

作　　者：陈则韶[1] 贾磊[1] 谭洋[1] 郭俊成[1] 陈建新[1] 

机构地区：[1]中国科学技术大学热科学与能源工程系,合肥230027

出　　处：《中国科学技术大学学报》2003年第1期92-98,共7页JUSTC

基　　金：国家烟草专卖局资助项目 (计划文号 :国烟科 2 0 0 0年第 12号合同号 :12 3 )

摘　　要：推导出了烟草导热系数与湿基含水率的关系式 ,并用实验测定值检验了推算式的精度 .对于烟叶堆积床 ,推算值与实验测定值的绝对平均偏差为 1 .75 % ,算术平均偏差为 0 .1 5 % ;对于烟丝堆积床 ,推算值与实验测定值的绝对平均偏差为 2 .36% ,算术平均偏差为 0 .2 5 % .其精度均满足工程需求 .The relation ship between thermal conductivity and w ater content of tobacco is presented in this paper. The accuracy of the recommen ded formula is checked by experimental data. The calculated results agree very w ell with the experimental data. For leaf tobacco stack, the absolute average dev iation is 1.75%,and the arithmetic average deviation is 0.15%, while for cut tobacco as compared with 2.36% and 0.25%, respectively, for cut tobacco. The for mula can be also used to calculate other porous material.

关 键 词：烟草 导热系数 含水率 多孔介质 

分 类 号：TK39[动力工程及工程热物理—热能工程]