The Small Diameter Rig


Test section length: 0.60 m
Inner diameter: 6-9 mm
Inclination: 0 to +90 degrees from horizontal position
Test section material: Glass
Pressure: Atmospheric
Temperature: Ambient
Fluids: air and various liquids


 

 

 

 

details

  1. Phase separator
2. Porous wall section
3. Glass test tube
4. Rotating support
5. Liquid storage tank

Applications:

- Study of counter-current air/liquid flow characteristics:
       pressure drop
       liquid film characteristics - liquid holdup
       local wall shear stress
       flooding velocities
- Study of free falling film characteristics
- Flow visualisation experiments

Instrumentation:
- High speed video camera for
      flow visualisation and
      film thickness measurements
- Differential pressure transducers
- Electrochemical probes for wall shear stress measurements


References
Mouza, A.A., Pantzali, M.N. and Paras, S.V. 2005 The influence of liquid properties on flooding phenomena in small diameter tubes. Chem. Eng. Sci., 60,18, 4981-4991.
Mouza, A.A., Paras, S.V. and Karabelas, A.J. 2002 The influence of small tube diameter on falling film and flooding phenomena. Intern. J. Multiphase Flow 28, 8, 1311-1331.
Mouza, A.A., Paras, S.V. and Karabelas, A.J. 2003 Incipient flooding in inclined tubes of small diameter Intern. J. Multiphase Flow 29, 9, 1395-1412.
Mouza, A.A., Pantzali, M.N., Paras, S.V. and Karabelas, A.J. 2003 The influence of liquid properties on flooding phenomena in small diameter tubes 4th European Congress of Chemical Engineering, Granada.