Pipe friction head loss calculation Pipe friction head loss calculation is important for sizing pumps, several equations have been developed to calculate pipe friction head loss, this article will explore the popular methods available.

# friction factor

## Difference between Fanning friction factor and Darcy friction factor

What is the Difference between Fanning friction factor and Darcy friction factor? Fanning friction factor The Fanning friction factor is defined as follows: ff = fd /4 Where; ff =Fanning friction factor fd =Darcy friction factor Darcy friction factor The Darcy friction factor is defined as follows: fd = 4 […]

## Hazen-Williams equation

Hazen-Williams equation is a popular approach for the calculation of head loss of liquid in piping systems. In this method, Hazen-Williams coefficient is introduced to the equation, the coefficient eliminates the need for using Reynolds number. The Hazen-Williams coefficient is mainly used to account for the pipe roughness or efficiency.