Unterschiede

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--- en:grundlagenhandbuch:entgasungsoberflaechenberechnung:entasungseffizienz [2025/06/26 11:44] – deppe2
+++ en:grundlagenhandbuch:entgasungsoberflaechenberechnung:entasungseffizienz [2026/01/28 10:40] (aktuell) – gelöscht deppe2
@@ Zeile 1: / Zeile 1: @@
-====== Degassing efficiency of the process ======
-===== Degassing efficiency of the process =====
-The degassing efficiency is evaluated with the degassing reference parameter of Schuler (Equation 1. In this case taken place the determination for wetting and non-wetting polymer.
-$$\frac{c_{Start} - c_{End}}{c_{Start} - c_{Gleichgewicht}} = \frac{\left(\frac{A_{POOL}}{t_{POOL}} + \frac{A_{FILM}}{t_{FILM}} + \frac{A_{GRUND}}{t_{GRUND}}\right)}{\dot{m}} \tag{Equation 1}$$
-After transposing of the equation can be the end concentration of low molecular component determined. Thereby is it possible to take a statement about the degassing efficiency.
-For wetting polymer is the Equation 2and for non-wetting polymer is the Equation 3 used.
-$$EK_{Benetzend} = \frac{\left(\frac{A_{POOL}}{t_{POOL}} + \frac{A_{FILM}}{t_{FILM}} + \frac{A_{GRUND}}{t_{GRUND}}\right)}{\dot{m}} \tag{Equation 2}$$
-$$EK_{Nicht-Benetzend} = \frac{\left(\frac{A_{POOL}}{t_{POOL}} + \frac{A_{FILM}}{t_{FILM}}\right)}{\dot{m}} \tag{Equation 3}$$
-The difference between both equation is that the surface area und renewal time at screw root is neglected, because in non-wetting case are not melt at screw root available.