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Full-Text Articles in Engineering
Flow Rate Equation For Suppressed And Submerged Sluice Gates, Charles M. Burt, Albert J. Clemmens, Kyle Fesit
Flow Rate Equation For Suppressed And Submerged Sluice Gates, Charles M. Burt, Albert J. Clemmens, Kyle Fesit
BioResource and Agricultural Engineering
In irrigation projects, the control and measurement of flow rates at key bifurcation points is essential. Sluice gates at the heads of irrigation canals are used by operators to control the flow into these canals. In US irrigation districts, canal operators often estimate flow rate at the heads of canals by “experience” unless they have a flume downstream. For example, they may open a gate a certain number of turns for a change in flow rate, regardless of upstream and downstream conditions. Theoretical estimates of discharge are often inaccurate in field situations. Problems include varying and uncertain discharge coefficients, entrance …
Sbx7 Flow Rate Measurement Compliance For Agricultural Irrigation Districts, Charles M. Burt, Evan Geer
Sbx7 Flow Rate Measurement Compliance For Agricultural Irrigation Districts, Charles M. Burt, Evan Geer
BioResource and Agricultural Engineering
Senate Bill x7-7 (SBx7-7) requires documented volumetric accounting to individual turnouts for water deliveries. Section 597.3 of the bill lists two very different requirements for devices. This document examines the requirements of SBx7 and the implications for agricultural irrigation districts. The definitions and impacts of flow rate and volumetric accuracy are defined. Example scenarios and solutions are offered, as well as descriptions of applicable devices.
Canal Flow Rate Measurement Guidelines – Itrc 2005: Hydroacoustic Meters, Charles M. Burt, Stuart Styles
Canal Flow Rate Measurement Guidelines – Itrc 2005: Hydroacoustic Meters, Charles M. Burt, Stuart Styles
BioResource and Agricultural Engineering
A Hydroacoustic flow meter provides remote velocity sampling and integrated flow measurement based on the physical principle called the Doppler shift. The sensors can either project a continuous or pulsed beam of acoustic signals at angles above the horizontal position of the sensor. Flow velocity is calculated by averaging the measured variations in sound frequency reflected back from particles in the water. Depth is measured with a ceramic-based pressure transducer integrally mounted in a surface mount velocity sensor and the device calculates the flow rate.