用平面热源过渡态平板法同时测定烟叶的λ、α和c_p三种热物性  

Measurements for λ、α and c_p of Tobacco Using Transient-state-plate Method with Flat Heater

作　　者：陈则韶[1] 郭俊成[1] 贾磊[1] 谭洋[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》2002年第3期309-313,共5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：烟叶和烟丝的热物性是卷烟生产的重要基础数据 ,本论文介绍一种可同时测定烟叶和烟丝的导热系数λ、热扩散率α和比热容cp 的平面热源过渡态平板法的测试原理、测试装置及用该方法测试的部分烟叶热物性数据 ,并初步对测试结果进行了定性讨论 .In this paper, a new transient-state-plate method with flat heater is introduced and its physical model is established. By the steady and unsteady measurement results obtained from using this method, tobacco thermophysical properties of λ, α and c p can be obtained at the same time. An experiment system based on the method is developed. The thermophysical properties of two kinds of Hubei burley tobacco are measured. The results will be helpful for tobacco production.

关 键 词：热物性 烟叶 烟丝 导热系数 热扩散率 比热容 物性测定 

分 类 号：TS412[农业科学—烟草工业]