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Two Phase Flow Demonstrator (Enhanced Version)
 
 

Description:

The Two-Phase Flow demonstration apparatus is a small scale flow loop that can demonstrate two-phase flow phenomena in pipes at a variety of liquid and gas flow rates. Two-phase flow occurs when a gas is flowing in a confined space (such as a pipe) with a liquid. The flow profile and geometry in this instance varies widely as a function of the liquid and gas material properties as well as the flow rates through the pipeline. Certain flow regimes can be destructive to facility piping, and should be avoided where possible. The destructive effects of these flow regimes can be managed through the use of various piping geometries. It is important that the process operator understand the basics of two-phase flow in pipelines, especially as it pertains to the formation of the destructive slug flow regime.

The Two-Phase Flow Demonstrator uses air as the gas-phase and water as the liquid-phase to create different flow regimes in the process piping. Air is supplied to the system by a low pressure blower and liquid is supplied through a centrifugal pump. The air and liquid flow rates are continuously variable over a wide range of flow rates. This allows the operator to observe a wide range of two-phase flow regimes using this demonstrator. The demonstrator is mounted on a purpose-built SS frame for ease of movement and storage.

Process Highlights:

  • Working fluids air and water
  • Low pressure, ambient temperature operation
  • Continuously variable air and water flow rates (hand operated valves)
  • Process fluid flow rate indication
  • Rotameter for the liquid stream
  • Averaging Pitot (dynamic pressure measurement) for the air stream
  • Alternative flow measurement technologies are available upon request

Equipment Specification Highlights:

  • Three clear 1” PVC process pipe runs (horizontal run length approximately 9 feet long for flow-regime to develop more fully.)
    • Horizontal pipe run
    • Horizontal pipe run with liquid trap
    • Vertical pipe run with gas lift or combined flow option
    • ¼ turn ball valves located to provide quick trapping of fluids
  • Centrifugal pump for water stream
  • Rotameter for liquid fluid flow rate indication
  • Regenerative air blower
  • Averaging Pitot with differential pressure gauge for air flow rate indication
  • Quick connect pressure taps at selected locations (for P measurement) and one digital manometer
  • Water storage tank
  • Complete unit mounted on a purpose-built SS frame, with casters for ease of movement and storage
  • Screw jack on one end to allow slight slope in horizontal pipes
  • Approximate overall dimensions – 3000 x 600 x 1200 mm high (120” x 24” x 48” high)
  • Available in all world voltages / frequencies (customer to specify electrical power available on-site)
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