CALCUL DES PERTES DE CHARGE REGULIERESCALCUL DES PERTES DE CHARGE REGULIERES

major head losses

The pressure loss is irreversible loss of pressure because the head loss is converted into heat or noise that we do not know re-transformed into pressure: (Mecaflux Pro3D)

Major head loss pressure drop

 

The major head losse or pressure drop represent energy losses due to friction of the fluid in a conduit of constant section. They are expressed in fluid heights (in meters) and pascals.

DH is the pressure drop of major head loss in meter column fluid

l is the major head loss coefficient

pressure drop of major head losses

 

See also: Sizing a hydraulic line or aeraulic according to its flow

 

Here is an example of how to calculate major head loss with software mecaflux:

major head losses software

To calculate the energy losses, certain information is required, enter the information in the "Parameters area" 

    Press calculate.. (if a required parameter is missing a message "insufficient parameters will warn)  
During the calculation:
  • You may be offered a choice of two equations, the results are similar, but you can compare different methods of calculation.
  • You may be offered a choice between two flow regimes when you are close to the limits of transition between laminar and turbulent flow.. This transition is often brought into reality by defects in roughness. (if you restart the calculation by slightly modifying the roughness you switch to a regime or another)
      Calculation results are displayed in the software's results area":

 

 The inventory of head loss, allows you to add the results of several calculations, perform test debits, research points operating pumps and graphical analysis: See inventory pressure drop

The inventory of head loss, allows you to add the results of several calculations, perform test debits, research points operating pumps and graphical analysis

See also: Sizing a hydraulic line or aeraulic according to its flow

 

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