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Water Distribution Efficiency Equation:
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Water distribution efficiency represents the extent to which the water has penetrated to a uniform depth, throughout the field. It measures how evenly water is distributed across an irrigation area.
The calculator uses the Water Distribution Efficiency equation:
Where:
Explanation: The equation calculates the efficiency by comparing the average deviation from the mean water depth to the average depth of water stored.
Details: Water distribution efficiency is crucial for effective irrigation management, ensuring uniform water application, optimizing water usage, and maximizing crop yield while minimizing water waste.
Tips: Enter average numerical deviation and average depth of water stored in consistent units. Both values must be valid (y ≥ 0, d > 0).
Q1: What is considered good water distribution efficiency?
A: Typically, efficiency above 80% is considered good, but optimal values depend on specific irrigation systems and crop requirements.
Q2: How is average numerical deviation measured?
A: Average numerical deviation is calculated by computing the mean depth and then the specific distance between each measurement and that mean.
Q3: What factors affect water distribution efficiency?
A: System design, pressure variations, nozzle condition, terrain slope, and wind conditions can all affect distribution efficiency.
Q4: How can water distribution efficiency be improved?
A: Regular maintenance, proper system design, pressure regulation, and using appropriate nozzle types can improve distribution efficiency.
Q5: Is this formula applicable to all irrigation systems?
A: The basic principle applies to most irrigation systems, but specific calculations may vary depending on the system type and measurement methods.