Unterschiede
Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
| Beide Seiten der vorigen RevisionVorhergehende ÜberarbeitungNächste Überarbeitung | Vorhergehende Überarbeitung | ||
| en:scale-up_modul [2026/01/11 18:25] – [Setting of the Exponents] neelest | en:scale-up_modul [2026/04/14 15:57] (aktuell) – [Calculation of the Exponents] pka | ||
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| Zeile 33: | Zeile 33: | ||
| If you specify an L/D ratio for the main design or accept the value suggested by SIGMA, you must select a boundary condition for the transfer of the operating point in the Speed Exponent (CHI) column. There are five options to choose from here: | If you specify an L/D ratio for the main design or accept the value suggested by SIGMA, you must select a boundary condition for the transfer of the operating point in the Speed Exponent (CHI) column. There are five options to choose from here: | ||
| - | * Constant specific energy input | + | * Constant specific energy input (s. [[en: |
| - | * Constant heat flow density | + | * Constant heat flow density |
| * Constant shear rate | * Constant shear rate | ||
| * Constant barrel temperature | * Constant barrel temperature | ||
| - | * Constant residence time | + | * Constant residence time (s. [[en: |
| The choice of boundary condition has a significant influence on speed and throughput. However, the values to be achieved are also a function of the PSI depth of cut exponent. For this reason, the selected transfer conditions must be assessed on a case-by-case basis. However, it can be said that in practice, process transfer is usually based on the conditions of //constant specific energy input// and //constant average shear rate//. | The choice of boundary condition has a significant influence on speed and throughput. However, the values to be achieved are also a function of the PSI depth of cut exponent. For this reason, the selected transfer conditions must be assessed on a case-by-case basis. However, it can be said that in practice, process transfer is usually based on the conditions of //constant specific energy input// and //constant average shear rate//. | ||
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| ===== Calculation of the Exponents ===== | ===== Calculation of the Exponents ===== | ||
| - | By activating the **Next** button an iterative calculation of the model law exponents is carried out. On the basis of these exponents, at first the process parameters are calculated and illustrated in the dialog (see figure). | + | By activating the **Next** button an iterative calculation of the model law exponents is carried out. On the basis of these exponents, at first the process parameters are calculated and illustrated in the dialog (see figure). Futher details about the calculation of the exponents are given in the reference manual (s. [[en: |
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