**“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

PIPE DIAMETER IN INCHES | VELOCITY MTR/SEC | FLOW M3/HR |

1 | 1.2 | 2.2 |

2 | 1.3 | 9.5 |

3 | 1.4 | 23 |

4 | 1.7 | 50 |

6 | 1.8 | 118 |

8 | 1.8 | 210 |

10 | 1.8 | 328 |

12 | 2.0 | 525 |

14 | 2.0 | 715 |

16 | 2.0 | 934 |

18 | 2.0 | 1181 |

20 | 2.0 | 1459 |

22 | 2.0 | 1764 |

24 | 2.0 | 2100 |

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.