ρV2 (Rho-V2)

Rho-V2 (ρV2) is typical measurement for momentum, indirectly the kinetic energy of moving fluid.

In many old design, many designer focus on velocity as major factor in kinetic energy. However, nowadays designer will take into account of fluid density as density also play important rule in defining the kinetic energy especially fluid carrying liquid, heavy metal, solid, etc.

In line, the kinetic energy is limited so that the vibration, erosion, corrosion, surge, noise, etc is within a "reasonable" range (subject to company and designer...). In gravity separator (believe your "vessel" mean separator), the kinetic energy is will distributed to reduce breakage of liquid phase, re-entrainment and allow sufficient time for gravity force to act on heavy component (liquid phase).

 

 

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Nozzle Rho-V2 and Shell Entrance Rho-V2 shall be as follows.

* Nozzle Rho-V2
  - Inlet and outlet nozzle Rho-V2 for design case shall not exceed 6,000kg/m-s2.
  - For the revamp case, Rho-V2 allows to 9,000kg/m-s2 as maximum in order to prevent erosion.

* Shell Entrance
   - TEMA recommends that the shell entrance Rho-V2 shall not exceed 5,953 kg/m-s2.

 

 

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