摘要
为揭示电加热卷烟烟芯关键成分逐口释放规律,通过比较化学反应控制与外部传质控制两种释放机理,建立了电加热卷烟烟芯关键成分传热传质数学模型。结果表明:①电加热卷烟烟芯体积平均温度主要受到加热片温度曲线与环境散热两方面共同影响;②甘油、烟碱和丙二醇的逐口释放在达到加热温度后主要受化学反应控制,其活化能分别为33.3、11.9和5.6 kJ/mol;③水分和其他成分的逐口释放主要受外部对流传质控制,传质系数分别为0.002和0.009 s^(-1)。数学模型可以较好地模拟电加热卷烟烟芯关键成分的逐口剩余量、逐口释放量和逐口释放质量分数的变化规律。
In order to study the puff-by-puff releases of key smoke components of an electrically heated cigarette(IQOS),a mathematical model of the heat and mass transfer processes and the key smoke components in tobacco section was established to study a chemical reaction controlled and a mass transfer controlled mechanism,respectively.The results showed that:(1)The volume averaged temperature in the tobacco section under heating was mainly affected by the temperature curve of the heater and environmental heat dissipation.(2)Upon reaching the heating temperature,the puff-by-puff releases of glycerol,nicotine and propylene glycol were mainly controlled by a chemical release mechanism,and their activation energies were 33.3,11.9 and 5.6 kJ/mol,respectively.(3)The puff-by-puff releases of water and the other components were mainly controlled by external convection caused mass transfer with the mass transferring coefficients of 0.002 and 0.009 s^(-1)respectively.The mathematical model could reasonably simulate the release of the key components from the tobacco material,such as the puff-by-puff residual quantity,puff-by-puff released quantity and mass fraction.
作者
王乐
王亚林
李志强
彭钰涵
王爽
付丽丽
张齐
鲁端峰
李斌
韩敬美
黄锋
WANG Le;WANG Yalin;LI Zhiqiang;PENG Yuhan;WANG Shuang;FU Lili;ZHANG Qi;LU Duanfeng;LI Bin;HAN Jingmei;HUANG Feng(Zhengzhou Tobacco Research Institute of CNTC,Zhengzhou 450001,China;Technology Center,China Tobacco Yunnan Industrial Co.,Ltd.,Kunming 650231,China;Technology Center,China Tobacco Zhejiang Industrial Co.,Ltd.,Hangzhou 310024,China)
出处
《烟草科技》
EI
CAS
CSCD
北大核心
2021年第6期58-64,共7页
Tobacco Science & Technology
基金
国家烟草专卖局重点科技项目“加热卷烟烟具与烟支耦合设计关键技术研究与应用”[110202001010(XX-06)]
云南省青年项目“电加热不燃烧卷烟加热器温度场分布规律研究”(2019FD087)。
关键词
电加热卷烟
烟芯段
烟碱
甘油
丙二醇
逐口释放
模型
Electrically heated cigarette
Tobacco section
Nicotine
Glycerin
Propylene glycol
Puff-by-puff release
Model
