misting system hydraulic calculation
A design calculation connects the application target to nozzle selection, zone flow, pipe losses and pump duty. Record the design assumptions and verify the inputs before final component selection.
For each simultaneous zone, total design flow equals the number of active nozzles multiplied by verified nozzle flow at the intended working pressure.
Estimate losses through pipe, fittings, valves and filters, then confirm adequate pressure at the hydraulically most disadvantaged nozzle. Validate the final duty against a pump curve.
Record mounting height, spray direction, working pressure, airflow and the area to be treated. Spray angle and height help estimate coverage, but do not by themselves establish evaporation or cooling. Check the layout under the intended conditions and adjust spacing to avoid unwanted wetting.
Outside diameter selects the fitting; internal diameter is an input to the hydraulic calculation. Record tube wall thickness, route length, elevation changes and fittings. Calculate each segment using the flow passing through it, including all branches that can operate together. Compare the remaining pressure at the farthest nozzle with its required duty.
For identical nozzles at the selected pressure, zone flow is nozzle count multiplied by nozzle flow. Add the demands of zones that run together; for alternating zones, review the largest permitted combination and changeover sequence. Allow for the selected pump's regulation and bypass requirements, then check its operating curve and inlet supply.
Include layout dimensions, elevations, pipe preference, nozzle spacing target, water and power data, operating schedule, ambient conditions and required controls.
No. Flow, working pressure, water quality, pipe length, elevation, zoning and the operating environment must be reviewed together.
Send the application, site dimensions, available power and water, desired zones, operating schedule and any required connection or material standard.
Send your layout, nozzle operating data and required control sequence so we can review the hydraulic duty and prepare a component proposal.
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