- 4FME3066

Goal(s)

A - Heabox

• To know and understand the role of the headbox and the main operating parameters
• To observe and quantify the effect of several geometrical parameters and operating parameters, thanks to experimental work (data collection and treatment)
• To know and understand the hydraulics of the papermachine approach system
• To be able to operate a pilot system (headbox circuits).

B - Characterisation of fibrous suspension flows

• To know and understand the specific behaviour of fibre suspension flows:
  ** The different regimes
  ** The equilibrium of the circuit (compared to the case with water only)
• To be able to operate a pilot system.

Content(s)

A - Headbox

• Study of the design of the pilot system
• Study of the velocity of the flow in the different parts of the circuit
• Study of the pressure distribution in the circuit
• Study of the jet delivered by the headbox.

B - Fibre suspension flows

• Study of the circuits
• Study of the pressure in the circuit (comparison with water only)
• Study of the different flow regimes as a function of the suspension concentration
• Comparison with data from the literature.

Fluid mechanics (1st year)
Ppaermaking engineering (2nd year)