What is the formula for Total Dynamic Head (TDH)?

Total Dynamic Head (TDH) is a crucial concept in understanding the performance of pumps in fluid systems. The formula for TDH takes into account several factors that affect how well a pump will move fluid from one point to another.

The correct formula, which considers the various heights and losses in a system, is expressed as the sum of the static head, pressure head, friction head, and velocity head. Static head represents the vertical height difference between the source and the discharge point, while pressure head accounts for the pressure applied by the fluid in the system. Friction head includes losses due to resistance in pipes and fittings as fluid flows, and velocity head is tied to the fluid's speed as it moves.

Therefore, when calculating Total Dynamic Head, it is essential to include all these components to accurately determine how much energy is required for the pump to function effectively in the given system. This integrated approach ensures that the design and operation of pumping systems are optimized for efficiency and reliability.