烟丝含水率和雾化剂复配比例对电加热卷烟气溶胶粒径分布和浓度的影响  

Effects of tobacco moisture content and atomizing agent composition ratio on particle size distribution and concentration of electrically heated cigarette aerosol

作　　者：李智 肖忠铧 赵文涛 汪旭 杨菁 冯奇 刘成 高乃平[2] LI Zhi;XIAO Zhonghua;ZHAO Wentao;WANG Xu;YANG Jing;Feng Qi;LIU Cheng;GAO Naiping(Shanghai University of Electric Power,Shanghai 200090,China;School of Mechanical Engineering,Tongji University,Shanghai 200092,China;Shanghai New Tobacco Product Research Institute Limited Company,Shanghai 201315,China)

机构地区：[1]上海电力大学,上海市杨浦区200090 [2]同济大学机械与能源工程学院,上海市杨浦区200092 [3]上海新型烟草制品研究院有限公司,上海市浦东新区201315

出　　处：《中国烟草学报》2025年第1期14-23,共10页Acta Tabacaria Sinica

基　　金：中国烟草总公司科技重大专项“基于热动力学的电加热卷烟传质传热机理研究及应用”(110202101016(XX-02));上海新型烟草制品研究院有限公司科技项目“内芯加热卷烟烟支设计参数研究”(KF2020-001Y);上海新型烟草制品研究院有限公司科技项目“基于加热卷烟烟气致香成分释放规律分析的调香技术研究”(K2021-001Z)。

摘　　要：【目的】研究烟丝含水率和雾化剂复配比例对电加热卷烟气溶胶粒径分布和浓度的影响。【方法】采用SCS抽吸模拟采样机和DMS500快速粒径谱仪系统,测试不同烟丝含水率和雾化剂复配比例的电加热卷烟气溶胶粒径分布和浓度。【结果】①不同含水率和雾化剂复配比例电加热卷烟烟气气溶胶粒径范围为10~300 nm,粒径分布轮廓主要趋向于单峰分布,当烟丝含水率较高,雾化剂为纯甘油时,第2口或第3口的粒径呈双峰分布;②在同一含水率下,雾化剂为纯甘油的电加热卷烟气溶胶粒数浓度、粒数中值粒径和体积浓度呈现不同的逐口变化趋势;③丙二醇含量较高时,逐口粒数浓度、粒数中值粒径和体积浓度逐口变化都较为平稳;④烟丝含水率为6.9%~17.1%时,电加热卷烟气溶胶的粒数浓度在含水率为11.9%时最大,粒数中值粒径和体积浓度则在含水率为6.9%时最大,且体积浓度随含水率的提高逐渐减少;⑤研究范围内,随着丙二醇含量的提高,电加热卷烟气溶胶的粒数浓度和体积浓度均逐渐增大,粒数中值粒径则较为接近。[Objective]This study aims to investigate the effects of moisture content and atomizing agent composition ratio on particle size distribution and concentration of aerosol from electrically heated tobacco products(EHTPs).[Methods]A smoking cycle simulator(SCS)and DMS500 fast particulate analyzer were used to test the aerosol particle size distribution and concentration of EHTPs with different moisture contents and atomizing agent composition ratio.[Results](1)The particle size range of the EHTP aerosol particles,varying with different moisture contents and aerosol formulation ratios,was 10-300 nm,predominantly exhibiting a log-normal distribution.When the moisture content was high and the aerosol formulation consisted of pure glycerol,the particle size distribution exhibited bimodal peaks at the second or third puff.(2)Under the same moisture content,the aerosol particle number concentration,count median diameter(CMD),and volume concentration of EHTPs with pure glycerol as the aerosol formulation displayed different trends with each puff.(3)Higher propylene glycol content resulted in relatively stable changes in particle number concentration,CMD,and volume concentration from puff to puff.(4)In the moisture content range of 6.9%to 17.1%,the particle number concentration of aerosols generated by EHTP was maximized at a moisture content of 11.9%.Meanwhile,the CMD and volume concentration reached their peaks at a moisture content of 6.9%.Additionally,the volume concentration gradually decreased with increasing moisture content.(5)Within the scope of the study,as the content of propylene glycol increased,both the aerosol particle number concentration and volume concentration of EHTPs increased,while the CMD remained relatively consistent.

关 键 词：电加热卷烟 含水率 雾化剂复配比例 气溶胶 粒径分布 

分 类 号：TS4[农业科学—烟草工业]