Temat: rheological model - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Mathematical models for prediction of rheological parameters in vinasses derived from sugar cane
Autorzy:: Chacua, L.M.
Ayala, G.
Rojas, H.
Agudelo, A.C.
Powiązania:: https://bibliotekanauki.pl/articles/25873.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: mathematical model
prediction
rheological parameter
vinasse
sugar-cane
ethanol production
rheological model
Źródło:: International Agrophysics; 2016, 30, 2
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Influence of glycerol and temperature on the rheological properties of potato starch solutions
Autorzy:: Ayala, G.
Vargas, R.A.
Agudelo, A.C.
Powiązania:: https://bibliotekanauki.pl/articles/24305.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: glycerol
temperature
rheological property
potato starch
solution
pseudoplastic behaviour
rheological model
Opis:: Effects of temperature and glycerol concentration on rheological properties of potato starch solutions were investi- gated. The flow behaviour (shear stress against shear rate) was fitted to various models: power law, Herschel-Bulkley, Bingham, modified Bingham and Casson models. However, it was found that the Herschel-Bulkley model describes better the flow behaviour observed at various temperatures and glycerol concentrations, for flow behaviour index values between 0.44 and 0.78, typical of pseudoplastic solutions. The effect of glycerol concentration on each of the fitting parameters for Herschel-Bulkley model was well modelled by a second-degree polynomial at various temperatures. The simultaneous influence of glycerol concentration and tempe- rature on shear stress could be represented empirically by a second- degree polynomial function that includes linear coupling between concentration and temperature. Finally, the variation of the con- sistency coefficient with both temperature and glycerol concentra- tion was well described by an exponential expression, with an acti- vation energy value of 2.78 kJ mol -1 . The results indicate that both glycerol content and temperature have the effect of diluting potato starch solutions.
Źródło:: International Agrophysics; 2014, 28, 3
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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