Sensitivity of shrinkage and collapse functions involved in pore formation during drying. Khalloufi, S., Almeida-Rivera, C., Jansen, J., Van-Der-Vaart, M., & Bongers, P. Volume 29 of Computer Aided Chemical Engineering, Elsevier, 2011.
Sensitivity of shrinkage and collapse functions involved in pore formation during drying [link]Website  abstract   bibtex   
The pore formation during drying is controlled by two mechanisms which are represented by two functions. These functions are expected to be universal, thus recurrent and applicable to relevant physical properties of the products during drying. This contribution aims at studying the sensitivity of shrinkage and collapse functions in predicting the porosity as a function of moisture content. A set of experimental data from an independent research group using air-drying of carrot were used to evaluate the sensitivity of these two functions. The results of this analysis showed that (i) at high moisture content, the porosity is not sensitive to the shrinkage function whatever the value of the collapse function is, (ii) in the case of air drying and at low moisture content, the porosity could be strongly affected by the shrinkage function, and (iii) the collapse function has a strong effect on porosity in products with a high volume of initial air. These findings are reported here for the first time and the approach used in this contribution could be very relevant to assess other parameters involved in drying processes such as bulk density and shrinkage coefficient.
@book{
 title = {Sensitivity of shrinkage and collapse functions involved in pore formation during drying},
 type = {book},
 year = {2011},
 source = {Computer Aided Chemical Engineering - 21st European Symposium on Computer Aided Process Engineering},
 identifiers = {[object Object]},
 keywords = {Porosity,collapse,drying,sensitivity,shrinkage,theoretical model},
 pages = {21-25},
 volume = {29},
 websites = {http://www.sciencedirect.com/science/article/pii/B9780444537119500055},
 publisher = {Elsevier},
 series = {Computer Aided Chemical Engineering},
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 created = {2016-04-04T08:04:50.000Z},
 accessed = {2016-04-04},
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 abstract = {The pore formation during drying is controlled by two mechanisms which are represented by two functions. These functions are expected to be universal, thus recurrent and applicable to relevant physical properties of the products during drying. This contribution aims at studying the sensitivity of shrinkage and collapse functions in predicting the porosity as a function of moisture content. A set of experimental data from an independent research group using air-drying of carrot were used to evaluate the sensitivity of these two functions. The results of this analysis showed that (i) at high moisture content, the porosity is not sensitive to the shrinkage function whatever the value of the collapse function is, (ii) in the case of air drying and at low moisture content, the porosity could be strongly affected by the shrinkage function, and (iii) the collapse function has a strong effect on porosity in products with a high volume of initial air. These findings are reported here for the first time and the approach used in this contribution could be very relevant to assess other parameters involved in drying processes such as bulk density and shrinkage coefficient.},
 bibtype = {book},
 author = {Khalloufi, Seddik and Almeida-Rivera, Cristhian and Jansen, Jo and Van-Der-Vaart, Marcel and Bongers, Peter}
}

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