Discharge rate measurements in a canal using radiotracer methods

Area of Science:

• Hydrology and Water Resources Engineering
• Environmental Monitoring
• Nuclear Engineering Applications

Background:

• Accurate measurement of water discharge is crucial for effective canal management and infrastructure performance evaluation.
• Concrete Volute Pumps (CVPs) are essential components in water distribution systems, requiring performance validation.
• Radiotracer techniques offer a precise method for hydrological flow measurements in complex water bodies.

Purpose of the Study:

• To validate the operational efficacy of Concrete Volute Pumps (CVPs) installed in a canal system.
• To assess the accuracy of discharge rate measurements using radiotracer methods.
• To compare experimental discharge rates with the designed flow rates for performance verification.

Main Methods:

• Utilized radiotracer techniques, specifically the pulse velocity and dilution methods, for discharge rate measurement.
• Employed Iodine-131 as the radiotracer for accurate flow tracking.
• Conducted measurements across multiple sections of the canal with single CVPs in operation.

Main Results:

• Discharge rate measured via pulse velocity method was 22.5 m³/s.
• Dilution method measurements showed discharge rates ranging from 20.27 to 20.62 m³/s.
• Standard error for dilution method measurements was between ±1.1% and ±1.8%.
• Experimentally determined discharge rates were in close agreement with the design value of 20 m³/s.

Conclusions:

• The performance of Concrete Volute Pumps (CVPs) was successfully validated through radiotracer-based discharge rate measurements.
• Radiotracer methods, including pulse velocity and dilution techniques, provide reliable data for assessing CVP efficacy.
• The findings support the effective operation of the installed CVPs within the canal system.