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Co-Rotating vs. Counter-Rotating Twin-Screw Extrusion Analysis

Calculates shear rates, apparent viscosity, power dissipation, and adiabatic temperature rise for co-rotating and counter-rotating twin-screw extruder configurations.

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1. Define Input Parameters

2. Engineering Output

Co-Rotating Channel Shear Rate (gamma_co)
- s⁻¹
Counter-Rotating Nip Shear Rate (gamma_cr)
- s⁻¹
Co-Rotating Apparent Viscosity (mu_co)
- Pa·s
Counter-Rotating Apparent Viscosity (mu_cr)
- Pa·s
Co-Rotating Power Dissipation (Pv_co)
- W/m³
Counter-Rotating Power Dissipation (Pv_cr)
- W/m³
Co-Rotating Temperature Rise (dT_co)
- °C
Co-Rotating Outlet Temperature (T_out_co)
- °C
Counter-Rotating Uncorrected Temp Rise (dT_cr_uncorr)
- °C
Counter-Rotating Corrected Temp Rise (dT_cr)
- °C
Counter-Rotating Outlet Temperature (T_out_cr)
- °C

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Context & Assumptions

This analysis evaluates the mechanical and thermal performance differences between co-rotating and counter-rotating twin-screw extruders. It focuses on shear rate intensity and viscous dissipation to ensure material integrity, particularly for shear-sensitive or heat-sensitive components like vitamin encapsulates.

Understand the Engineering Principles

Review the step-by-step derivations, typical industrial limits, and scale-up rules.

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