discharge-over-notches-apparatus

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The Notch Apparatus setup consists of a channel having sufficient length and width in which water is supplied from the bottom. Required Notch is fitted at one end of this channel. A pointer gauge with Vernier scale is fitted to measure the height of fluid in flow channel. Arrangement for fixing interchangeable notches is made.

 

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The notch apparatus setup consists of a channel having sufficient length and width in which water is supplied from the bottom. Required Notch is fitted at one end of this channel. A pointer gauge with a Vernier scale is fitted to measure the height of the fluid inflow channel. Arrangement for fixing interchangeable notches is made. Set of three notches, i.e. rectangular notch, 60 V notch 45 V notch is provided along with the set-up. The present set-up is a self-contained water re-circulating unit, provided with a sump tank and a centrifugal pump, etc. Flow control valve and by-pass valve are fitted in a water line to conduct the experiment on different flow rates. The flow rate of water is measured with the help of measuring tank and stopwatch.

Learning Objectives/Experiments:

To determine co-efficient of discharge (Cd) through:

  • V notch 45°
  • V notch 60°
  • Rectangular Notch.

Required for Operation:

  • Water Supply.
  • Drain.

Technical Specifications:

  • Notches : Material Brass
  • Rectangular Notch
  • 45° V Notch
  • 60° V Notch
  • Pointer Gauge : With Vernier scale.
  • Water Circulation : FHP Pump Crompton make.
  • Flow Measurement : Using Measuring Tank with Piezometer, Capacity 25 Ltrs.
  • Stop Watch : Electronic.
  • The whole set-up is ingeniously designed and schematically arranged on a powder-coated rigid structure

Control Panel:

  • Standard make On/Off switch, Mains Indicator etc.

Scope of Delivery:

  • 1 Self Contained ‘Discharge Over Notches’ Apparatus
  • 1 Instruction Manual consisting of experimental procedures, block diagram etc.

The experimental set-up arrangement for finding the coefficient of discharge inclusive of supply tank, collecting tank, pointer, scale & different type of notches. Notches are overflow structure where length of crest along the flow of water is accurately shaped to calculate discharge.

Specification:

Channel Test SectionSize 500 x 250 x 180 mm
NotchesRectangular Notch
60o V Notch
Water Circulation0.5. H.P. Pump (Standard Make)
Flow MeasurementUsing Measuring Tank, capacity 35 Ltrs.
Sump TankCapacity 70 Lts. Tanks will be made of M.S. sheet. The inside surface of the tank is provided with FRP to minimize the problem of corrosion.

The whole setup is self-contained water re-circulating unit well designed and arranged in a good quality painted structure.

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