Research Article
Numerical Study on Heat Transfer and Release Characteristics of Key Components in Electrically Heated Tobacco Products
Table 2
Parameters used in the simulation.
| | Parameter | Value |
| | Tobacco density (kg/m3) | 919.9 | | Tobacco particle density (kg/m3) | 1040 | | Initial porosity of tobacco | 0.420 | | Initial permeability of tobacco (m2) | 3.41 × 10−10 | | Equivalent diameter of tobacco shreds (mm) | 0.39 | | Thermal conductivity of water vapor (W/(m·K)) | 0.0261 | | Specific heat capacity of water vapor (J/(kg·K)) | 2014 | | Water vapor viscosity (kg/(m·s)) | 1.34 × 10−5 | | Thermal conductivity of glycerol vapor (W/(m·K)) | 0.0205 | | Specific heat capacity of glycerol vapor (J/(kg·K)) | 1916 | | Glycerol vapor viscosity (kg/(m·s)) | 9.87 × 10−6 | | Thermal conductivity of nicotine vapor (W/(m·K)) | 0.0212 | | Specific heat capacity of nicotine vapor (J/(kg·K)) | 1813 | | Nicotine vapor viscosity (kg/(m·s)) | 9.35 × 10−6 | | Enthalpy of water evaporation (J/kg) | 2.26 × 106 | | Enthalpy of glycerol evaporation (J/kg) | 6.64 × 105 | | Heat transfer coefficient of the outer wall of tobacco section (W/(m2·K)) | 65.25 |
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