An Alternative to the Extruder

From an efficiency point of view, the new setup is advantageous. As the pressure drop across the static mixer is approximately 25 MPa (for diameter 0.5 m  

Exergy requirement of alternative and existing extruder as a function of the static mixer diameter. 

It is undesirable to elevate the temperature of PE far above 300°C due to product quality concerns. The maximal gains are therefore 0.4 - 0.2 = 0.2MJ/kg PE. 

Pressure drop across static mixer for different diameters. 

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