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23 results

  1. CORESTA Congress, Online, 2022, Smoke Science/Product Technology Groups, ST 85

    Capillary evaporation model of binary mixed solution of propylene glycol and glycerin in e-cigarette atomizer

    CHEN Jingbo(1,2); WANG Zhiguo(1); PAN Zhenhai(3); CAO Jun(1); SUN Zhiwei(1,2); LIU Wei(1); KONG Bo(1); DU Wen(1)
    (1) Technology Center, China Tobacco Hunan Industrial Co., Ltd., Changsha, China; (2) College of Mechanical and Vehicle Engineering, Hunan University, Changsha, China; (3) College of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China
    For the current e-cigarette products on the market, the main method to generate e-cigarette aerosol is by heating the atomiser where the vaporization-condensation process occurs. E-liquid is mainly composed of a mixed solution of propylene glycol...
  2. CORESTA Meeting, Smoke Science/Product Technology, 2021, Online, ST 13

    Numerical simulation of smoke flow field characteristics and temperature distribution of circumferential heated tobacco products

    SUN Zhiwei(1); DU Wen(1); WANG Zhiguo(1); WANG Wei(1); CHEN Jingbo(1); LUO Wei(1); WEN Jianhui(1); HUANG Ping(1); YIN Xinqiang(1); ZHANG Mingjian(2); LI Bin(2); HUANG Zhengwei(3); ZHANG Zhang(3); GUI Qinfeng(3); DAI Hongliang(3)
    (1) Technology Center, China Tobacco Hunan Industrial Co., Ltd, Changsha, China; (2) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China; (3) College of Mechanical and Vehicle Engineering, Hunan University, Changsha, China
    Heated tobacco products have gradually become an important development direction and research hotspot of tobacco products because of their remarkable advantages in reducing the releases of harmful components. In order to carry out the research and...
  3. CORESTA Meeting, Smoke Science/Product Technology, 2021, Online, ST 27

    Development of new chemicals for e-cigarette vaping based on machine learning

    HUANG Jiaruo; DU Wen; YIN Xinqiang; YI Jianhua; CAO Jun; CHEN Jingbo; WANG Zhiguo
    China Tobacco Hunan Industrial Co., Ltd, Changsha, Hunan, China
    In order to overcome the disadvantages of e-cigarettes with glycerol and propylene glycol as the carrier liquid during vaporing, a recurrent neural network (RNN) model based on glycerol was employed in this study to generate plenty of new type...
  4. CORESTA Meeting, Smoke Science/Product Technology, 2019, Hamburg, STPOST 02

    Electro-thermal simulation analysis of heaters in tobacco heating devices

    SUN Zhiwei(1); WANG Wei(1); DU Wen(1); WEN Jianhui(1); XIE Guoyong(1); WANG Zhiguo(1); DAI Hongliang(2)
    (1) China Tobacco Hunan Industrial Co., Ltd., Changsha, P.R. China; (2) College of Mechanical and Vehicle Engineering, Hunan University, Changsha, P.R. China
    Heat-not-burn tobacco products have gradually become an important development direction and a key research topic of tobacco products due to their remarkable advantages in reducing the release of harmful components. As a heat source for cigarette...
  5. CORESTA Meeting, Smoke Science/Product Technology, 2017, Kitzbühel, ST 16

    Computational fluid dynamic (CFD) simulation of distribution characteristics of cigarette smoke flow field in grooved filter

    SUN Zhiwei; WEN Jianhui; DU Wen; ZHONG Kejun
    Hunan Industrial Co., Ltd. of CNTC, Research and Development Center, Changsha, Hunan, P.R. China
    A CFD model for the smoke flow in grooved filter was developed to study the flow field distribution in grooved filter and the ratio of cigarette smoke outflowing from the grooves (the proportion of amount of smoke outflowing from grooves in relation...
  6. CORESTA Meeting, Smoke Science/Product Technology, 2017, Kitzbühel, STPOST 10

    Methods for characterising morphological and structural variations of cut tobacco in cigarettes during smoking

    WANG Liang(1); YIN Donghong(1); XIE Guoyong(1); LI Bin(2); TAN Xinliang(1); DU Wen(1)
    (1) Hunan Industrial Co., Ltd of CNTC, Research and Development Center, Changsha, Hunan, P.R. China; (2) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China
    The morphological and structural variations of cut tobacco significantly influence the state of a burning cigarette and the formation of smoke constituents. A series of new methods for characterising the micro-structure of cut tobacco, planar...
  7. CORESTA Congress, Berlin, 2016, Smoke Science/Product Technology Groups, ST 13

    Determination of harmful components in mainstream cigarette smoke by FT-NIR spectrometry equipped with Cambridge filter pads

    REN Jianxin(1); WANG Zhiguo(1); LIU Wei(1); DU Wen(1); ZHONG Kejun(1); LIU Huimin(2); HU Qingyuan(3)
    (1) Hunan Industrial Co., Ltd. of CNTC, Technonlgy Center, Changsha, Hunan, P.R. China; (2) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China; (3) China National Tobacco Quality Supervision & Test Center, Zhengzhou, Henan, P.R. China
    The yields of harmful components in cigarette smoke are basic parameters to evaluate the harm of cigarettes. However, the existing detection methods for most harmful components in mainstream cigarette smoke are complicated and time consuming....
  8. CORESTA Meeting, Smoke Science/Product Technology, 2015, Jeju, ST 04

    Computational fluid dynamics simulation of cigarette smoke particulate phase retained by cigarette filter

    WEN Jianhui(1); DU Wen(1); ZHONG Kejun(1); ZHANG Xiaobing(2); PENG Bin(2); LIU Huimin(2)
    (1) Technology Center, China Tobacco Hunan Industrial Co., Ltd. of CNTC, Changsha, P.R. China; (2) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P.R. China
    A computational fluid dynamics model was developed to simulate the flow and retention of cigarette smoke aerosol particulate phase in an acetate filter whilst using nicotine as a surrogate for the particulate phase of the mainstream smoke. A volume...
  9. CORESTA Meeting, Smoke Science/Product Technology, 2015, Jeju, STPOST 03

    Development and application of FT-NIRs model for online monitoring of the quality of cut tobacco in primary processing line

    YI Hao(1); LI Jun(1); LIU Wei(1); DU Wen(1,2); WANG Zhiguo(1); CHEN Zengping(2)
    (1) Technology Center, China Tobacco Hunan Industrial Co., Ltd. of CNTC, Changsha, P.R. China; (2) College of Chemistry and Chemical Engineering, Hunan University, Changsha, P.R. China
    Near infrared (NIR) spectroscopy is especially suitable for online monitoring of the productive process due to its fast and non-destructive detection feature. The online monitoring of cut tobacco is important for cigarette industrial enterprises to...
  10. CORESTA Congress, Quebec, 2014, Smoke Science/Product Technology Groups, ST 33

    Filtration and retention characteristics of crotonaldehyde in cigarette filters

    WEN Jianhui(1); DU Wen(1); PENG Bin(2); LI Bin(2); ZHANG Xiaobing(2); XIE Fuwei(2); LIU Huimin(2); ZHONG Kejun(1)
    (1) China Tobacco Hunan Industrial Co., Ltd, Technology Center, Changsha, P.R. China; (2) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China
    In order to study the filtration and retention characteristics of crotonaldehyde in cigarette filters, the filtration efficiencies of crotonaldehyde were investigated in regular acetate filter under ISO and Health Canada Intense (HCI) smoking...