Home
Back
Formula Used:
| From: | To: |
Head of Liquid in Pipe is the height of a liquid column that corresponds to a particular pressure exerted by the liquid column from the base of its container. It represents the energy per unit weight of the fluid due to its pressure.
The calculator uses the formula:
Where:
Explanation: This formula converts water pressure to an equivalent height of water column, representing the pressure head in hydraulic systems.
Details: Calculating head of water is essential in hydraulic engineering, water supply systems, irrigation design, and fluid mechanics. It helps determine the energy available in a fluid system and is crucial for pump selection and pipeline design.
Tips: Enter water pressure in KN/m² and unit weight of water in KN/m³. The standard unit weight of water is 9.81 KN/m³. All values must be positive numbers.
Q1: What is the relationship between pressure and head?
A: Pressure and head are directly proportional. Head represents the height of fluid column that would produce the given pressure at its base.
Q2: Why is the unit weight of water important?
A: The unit weight (specific weight) converts pressure to head. For water, it's typically 9.81 KN/m³, but may vary slightly with temperature and impurities.
Q3: Can this formula be used for other liquids?
A: Yes, but you must use the appropriate unit weight for the specific liquid instead of water's unit weight.
Q4: What are typical head values in water systems?
A: Head values vary widely from a few meters in household systems to hundreds of meters in large water supply networks and hydroelectric projects.
Q5: How does head affect pump selection?
A: Pumps are selected based on the total head they need to overcome, which includes static head, friction head, and velocity head.