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Discharge Over Notches Apparatus Manufacturer,Supplier and Exporter in India

Product Code : SCL-CELE-14092

This laboratory setup is an integrated, self-contained unit specifically designed for the empirical study and calibration of weirs and notches, fundamental structures used for measuring flow rate in open channels. The apparatus features a flow channel where water is supplied from the bottom via a centrifugal pump in a closed water re-circulating unit. A critical component is the provision for fitting interchangeable notches, allowing for the investigation of different geometric configurations. Flow height over the notch crest is precisely measured using a hook gauge equipped with a Vernier scale, while the actual flow rate is determined volumetrically using a measuring tank and stopwatch. The core educational objective is the determination of the Coefficient of Discharge (Cd) for various notch types.

Objectives: Determination of Discharge Coefficients

Objective	Key Metric Investigated	Application in Flow Measurement
Determination Coefficient of Discharge (Cd)	Discharge Coefficient	Quantifying the ratio of actual discharge to theoretical discharge for accurate flow calculation.
V Notch (45 deg. and 60 deg.)	V-Notch Flow Equation	Determining Cd for triangular notches, which are ideal for measuring low flow rates.
Rectangular Notch	Rectangular Weir Formula	Determining Cd for notches with a simple rectangular opening, commonly used in larger channels.
Trapezoidal Notch	Cipolletti Weir Formula	Determining Cd for trapezoidal notches (Cipolletti weir), designed to simplify calculations by negating end contraction effects.

Technical Specifications: Notch and Weir Apparatus

Component	Parameter / Specification	Value / Feature
Flow Channel Test Section	Dimensions	600x250x180 mm
Supplied Notches	Quantity and Material	Brass (3 Nos.)
Supplied Notches	Types Included	Rectangular, 45 deg. V Notch, 60 deg. V Notch
Flow Measurement	Water Level Measurement	Hook / Pointer Gauge with Vernier Scale
Water Circulation Pump	Type and Make	FHP Pump, Crompton/Sharp make
Flow Rate Measurement	Device and Capacity	Measuring Tank with Piezometer, Capacity 25 Liters
System Storage	Sump Tank Capacity	70 Liters
Timing	Stop Watch	Electronic
Utilities	Electricity Supply	0.5kW, 220V AC, Single Phase
Valves	Included	Flow Control Valve and By-pass Valve