“HOW TO CALCULATE FLOW OF WATER IN A PIPELINE”

“HOW TO CALCULATE FLOW OF WATER IN A PIPELINE”

“FORMULA FOR FLUID FLOW IN A PIPELINE”

 1. Q (TONS/HR) = A (MTR2) X V (MTR/SEC) X DENSITY OF FLUID X 3600

                                    1000

2. Q (M3/HR)    = A (MTR2) X V (MTR/SEC) X 3600

                             SPECIFIC GRAVITY OF FLUID

Q= FLOW OF FLUID

A= CROSS SECTION AREA OF PIPE

V= VELOCITY OF FLUID

EXAMPLE FOR A CASE OF COLD WATER

USING FORMULA NO-1

DATA GIVEN AS FOLLOWS

Velocity of Water in Pipeline =1.7 Meter/Sec

Diameter of Pipeline =4’’=100mm=0.1 Meter

Density of Water=1000 Kg/M3

Q (KGS/HR) = A (MTR2) X V (MTR/SEC) X DENSITY OF FLUID X 3600(SEC/HR)

                     = 3.14 X D2 X 1.7 X 1000 X 3600

                         4

                     = 0.785 X .1 X .1 X 1000 X 3600

                     = 48042 

Q (TONS/HR) = 48042 =48.042     

                           1000

EXAMPLE OF A CASE OF COLD WATER

USING FORMULA NO-2

DATA GIVEN AS FOLLOWS

Velocity of water in Pipeline =1.7 Meter/Sec

Diameter of Pipeline=4’’=100mm=0.1 Meter

Density of Water=1000 Kg/M3

Q (M3/HR) = A (MTR2) X V (MTR/SEC) X 3600(SEC/HR)

                      SPECIFIC GRAVITY OF FLUID

                  = 3.14 X D2 X 1.7 X 3600

                                4 X 1

                   = 3.14 X .1 X .1 X 1.7 X 3600

                                 4 X 1

                   = 48.042

FLOW OF WATER IN VARIOUS SIZES OF PIPELINE

Disclaimer: Above calculation will give approximate flow m3/hr, as we did not considered friction and other losses. Velocities taken in respect to get laminar flow of liquid. Laminar flow of a liquid will save power consumption by reducing friction losses inside the pipeline.