What is the definition of friction loss in the context of irrigation?

Friction loss in the context of irrigation specifically refers to the pressure loss that occurs when water moves through the various components of an irrigation system, such as pipes, fittings, valves, and emitters. As water flows, it encounters resistance from the surfaces of these components, which leads to a decrease in pressure. This is an important factor to consider when designing and managing irrigation systems, as it can impact the efficiency and effectiveness of water delivery to plants.

Understanding friction loss is crucial for selecting appropriate pump sizes, pipe diameters, and system configurations to ensure that sufficient pressure is maintained throughout the irrigation system. By calculating and accounting for friction loss, technicians can optimize system performance and avoid under-delivery or over-delivery of water. This ensures that the irrigation system operates within its intended parameters and provides the necessary water for plant health.