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Products | Fluid Mechanics and Hydrology | Hydrology and Hydraulic Engineering | HM 143

HM 143

Surge Tank and Reservoir

Technical Description

The HM 143 demonstrates the principle of operation of a surge chamber and the non-steady state flow behaviour of water as, e.g., occurs at dams and in retention basins. In both systems the water rises before it is fed via an overflow to a load (e.g. a turbine) or a reservoir. A device that is capable, e.g., of absorbing pressure surges produced by a sudden change in the flow rate is termed a ”surge chamber” (used e.g. in hydroelectric power stations) The surge chamber is often designed as a cylindrical shaft in which the oscillation of the pressure pulse can subside undisturbed. The model system is equipped with pressure sensors. The pressure conditions that occur and the oscillations caused by a pressure surge are recorded using a chart recorder.

Learning Objectives / Experiments

· Principle of a surge chamber
· Determination of the natural frequency of the surge chamber
· Flow behaviour in a water reservoir
· Flow behaviour in a retention basin

Features

? Non-steady state flow behaviour in systems with storage
? Principle of operation of a surge chamber

Alternative products

HM 156 -- Surge Tank and Water Hammer Unit

Specification

[1] Model system for the demonstration of non-steady state flow processes and pressure surges
[2] l x w x h: 1300x1200x2100mm, 140kg
[3] Surge chamber for recording sudden pressure surges
[4] Demonstration of the flow behaviour in rain retention basins and at dams
[5] Variably adjustable overflow weir in the over-flow tank, fixed weir in the supply tank
[6] Pressure sensors
[7] 3-channel chart recorder
[8] 230V,~50Hz

Technical Data

Overflow tank: 900x900x300mm
Weir: µ=0.63, b=60mm, h variable
Supply tank: 900x900x300mm, overflow 250mm
Surge chamber: id 62mm, 1800mm long
Variable-area flow meter:
measuring range 300...3000Ltr/h
Pressure sensor:
24VDC, output signal 4...20mA
3-channel chart recorder

Dimensions and Weight

l x w x h : 1300 x 1200 x 2100 mm
Weight : approx. 140 kg

Connections

230V, ~50Hz
Water connection

Scope of Delivery

1 tank, complete,
1 instructions manual

Order Details

070.14300 HM 143 Surge Tank and Reservoir