On the Estimation of Permeabilities and Draw Resistances of Cigarette Components
The goal of this study is to investigate whether the permeability of the tipping/plugwrap system, the permeability of the cigarette paper and the draw resistances of the filter and tobacco rod can be calculated from measurements of the degree of filter ventilation and of the open and closed draw res...
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| Format: | Article |
| Language: | English |
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Sciendo
2004-03-01
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| Series: | Contributions to Tobacco and Nicotine Research |
| Online Access: | https://doi.org/10.2478/cttr-2013-0768 |
| Summary: | The goal of this study is to investigate whether the permeability of the tipping/plugwrap system, the permeability of the cigarette paper and the draw resistances of the filter and tobacco rod can be calculated from measurements of the degree of filter ventilation and of the open and closed draw resistance. This issue is investigated for a linear and a non-linear model of the flow in unlit cigarettes. At first it is proven that there exist experimental conditions to which the cigarette can be exposed such that the problem has at least a unique solution. The problem is then solved by least-squares optimisation for a linear and a non-linear model of the air flow in unlit cigarettes with various noise levels on the output quantities. The error sensitivity of the optimisation problem is estimated by calculation of the condition number. |
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| ISSN: | 2719-9509 |