Test Rig

PELTON WHEEL TEST RIG

This turbine is used for high heads. The present set-up consists of a runner. The buckets are mounted on the runner. The water is fed to the turbine, through SS nozzle with a SS spear, by means of Centrifugal Pump, tangentially to the runner. Flow of water into turbine is regulated by adjusting the spear position by the help of a given hand wheel. The runner is directly mounted on one end of a central SS shaft and other end is connected to a brake arrangement. The circular window of the turbine casing is provided with a transparent acrylic sheet for observation of flow on to the buckets. This runner assembly is supported by rigid  MS structure. Load is applied to the turbine with the help of this brake

dynamometer so that the efficiency of the turbine can be calculated. Pressure gauge is fitted at the inlet of

the turbine to measure the total supply head to the turbine.

Output Power: 1 kW.

Discharge: 400 LPM (Approx.)

Supply Head: 25 m

Speed: 1000 RPM (Approx.)

Nozzle: Material Stainless Steel.

Spear: Material Stainless Steel.

Dynamometer: Rope Brake type.

Sump Tank: Capacity 200 Ltrs.

Water Circulation: Centrifugal Pump, Standard make, Capacity 5 HP, Three Phase, 2800 RPMDischarge Measurement: Pitot tube with Manometer

Control Panel Comprises of: L&T make Starter, Mains Indicator,  and MCB for overload protection.
The real time data acquisition can be done by interfacing the set-up with computer using software. Software allows the user to have control on data logging, printing the stored data, preparing spread sheets in Excel etc.

KAPLAN TURBINE TEST RIG

The present set-up consists of a scroll casing housing a runner. Water enters the turbine through the stationary guide vanes and passes through the runner axially. The runner has a hub and airfoil vanes, which are mounted on it. The water is fed to the turbine by means of Centrifugal Pump. The runner is directly mounted on one end of a central shaft and other end is connected to a brake arrangement. A transparent hollow cylinder made of acrylic is fitted in between the draught tube and the casing for observation of flow on to the airfoil vanes. This runner assembly is supported by thick cast iron pedestal. Load is applied to the turbine with the help of drum brake arrangement so that the efficiency of the turbine can be calculated. The set-up is supplied with control panel. Pressure and Vacuum gauges are fitted at the inlet and outlet of the turbine to measure the total supply head on the turbine.

function of a Kaplan turbine

closed water circuit with submersible pump, throttle valve and tank

adjustment of flow rate with throttle valve

loading the turbine by use of air-cooled eddy current brake

rotor with fixed blades

adjustable guide vanes for setting different angles of attack

digital display for pressures, temperature, flow rate, speed and torque

Software for data acquisition via USB under Windows 8.1, 10

Kaplan turbine

max. output: 1KW

max. speed: 3700min-1

distributor

8 guide vanes, adjustable: -15°…45° external Ø: 120mm,

internal Ø: 60mm

rotor, 4 blades, fixed external Ø: 120mm, internal Ø: 60mm, pitch: 80mm

Submersible pump with motor

max. flow rate: 250m3/h

max. pump head: 11m

nominal power: 3,1kW

Tank: approx. 350L

Measuring ranges

temperature: 0…100°C

pressure (at turbine inlet): 0…1bar rel.

pressure (at turbine outlet): -1…0,6bar rel.

flow rate: 13…200m3/h

torque: 0…10Nm

speed: 0…6500min-1

VENTURIMETER TEST RIG

The apparatus consists of a pipe line contains one Venturimeter. Venturimeter is made from  Clear Acrylic. The pressure tapings from the Venturi meter is taken   to differential manometer to measure pressure difference. A valve is provided at the downstream side of Venturimeter. The flow can be regulated by this valve.

Present set-up is 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 water line to conduct the experiment on different flow rates.  Flow  rate of  water is measured with the help of measuring tank and stop watch.

The present set-up has a facility to interface the system with computer which enables to log the experimental data using computer. The educational software  and data-logging package has been developed for unit.

This software is capable to tabulate the sample readings according to the requirement of experiment under study and results obtained can  be compared.  The real time data acquisition can be done by interfacing the set-up with computer using software. Software allows the user to have control on  data logging, printing the stored data, preparing spread sheets in Excel etc.

Venturimeter Material Clear Acrylic compatible to 1” Dia. Pipe. Water Circulation FHP Pump, Crompton make

Pressure Measurement By Using Pressure Sensor Flow Measurement By Using Flow Sensor

ORIFICEMETER TEST RIG

The apparatus consists of a pipe line contains one Orificemeter. Orificemeter is made from Clear Acrylic. The pressure can be measured by pressure sensor. A valve is provided at the downstream side of Orificemeter. The flow can be regulated by this valve.

Present set-up is 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 water line to conduct the experiment on different flow rates. Flow rate of water is measured by flow sensor.

TECHNICAL DETAILS

Orifice meter Orifice plate made of SS & housing of Clear Acrylic compatible to 1” Dia. Pipe.

Water Circulation FHP Pump, Crompton make

Pressure Measurement By Using Pressure Sensor Flow Measurement

By Using Flow Sensor Sump Tank

PIPE FRICTION APPARATUS 

Pressure tapings are provided on each pipe to measure the pressure losses with the help of a Differential Manometer. Control valves are fitted on each pipe, which enables to use one pipe at a time for experiment. Present set-up is 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 water line to conduct the Experiment on different flow rates. Flow rate of water is measured with the help of measuring tank and stop watch.

investigation of the pressure losses in pipe elements

ten different pipe sections

measurement of pressure losses in valves, changes in pipe direction, straight pipes, contraction/enlargement or parallel lines

selection of pipe sections via hose connections with quick-release coupling

operation via mains water network or in a closed circuit

pressure sensor in annular chambers

differential pressure measurement with differential pressure meter

Pipe sections, length: 1000mm

straight, Cu, diameter: 18x1mm,

straight, galvanised steel, diameter: ½”

straight, diameter: 20x1,5mm,

straight, diameter: 32x1,5mm

section with segment bend, pipe angle, pipe bend

gradual/sudden enlargement in diameter: from 20 to 32mm

gradual/sudden contraction in diameter: from 32 to 20mm

dual line, PVC, diameter: 20x1,5mm

Measuring ranges

flow rate: 0…1600L/h

Software for data acquisition via USB under Windows 8.1, 10

CENTRIFUGAL PUMP TEST RIG

The set-up consists of a Centrifugal pump coupled with a swinging frame type DC Motor which permits direct torque measurement with the help of a spring balance. Power input to the DC Motor is varied by means of a Thyristor controlled DC Drive to vary the RPM of motor. A RPM Indicator with Proximity sensor indicates the RPM of Pump. Flow of water is measured by using measuring tank and stop watch. Vacuum gauge is fitted on suction line and Pressure gauge is fitted on delivery line to measure the pressure.

 investigation of a centrifugal pump

drive with variable speed via frequency converter

ball valve to adjust the head

digital display of speed and power

flow rate determined by base module

water supply using base module

Centrifugal pump, self-priming

max. flow rate: 3000L/h

max. head: 36,9m

Asynchronous motor

nominal power: 370W

Measuring ranges

pressure (outlet): -1…5bar

pressure (inlet): -1…1,5bar

speed: 0…3000min-1

power: 0…1000W

230V, 50Hz, 1 phase

230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase

It consists of a test section made of acrylic.  It has convergent and divergent sections.  Pressure tapings are provided at different locations in convergent and divergent section. Present set-up is self-contained water re-circulating unit, provided with a sump tank, centrifugal pump etc. An arrangement is done to conduct the experiment on different flow rates. Flow rate of water is measured with the help of measuring tank and stopwatch.

familiarisation with Bernoulli’s principle

Venturi nozzle with transparent front panel and measuring points for measuring the static pressures

axially movable Pitot tube for determining the total pressure at various points within the Venturi nozzle

6 tube manometers for displaying the static pressures

single tube manometer for displaying the total pressure

flow rate determined by base module

water supply using base module or via laboratory supply

Venturi nozzle

A: 84…338mm2

angle at the inlet: 10,5°

angle at the outlet: 4°

Pitot tube

movable range: 0…200mm

Ø 4mm

Pipes and pipe connectors: PVC

Software for data acquisition via USB under Windows 8.1, 10

Measuring ranges pressure:

0…290mmWC (static pressure)

0…370mmWC (total pressure)

ORIFICE AND MOUTHPIECE APPARATUS 

Technical detail

study of horizontal flows from tanks

determining the contraction coefficient for different outlet contours and diameters

tank with adjustable overflow and scale

four interchangeable inserts with different diameters and contours point gauge with eight movable rods for visualisation of the jet path white panel for recording the trajectory

flow rate determined by base module

water supply using base module or via laboratory supply Tank

height: 510mm Ø 190mm

contents: approx. 13,5L Inserts with rounded contour

1x Ø 4mm 1x Ø 8mm

Inserts with square contour 1x Ø 4mm

1x Ø 8mm

Point gauge, 8 movable rods

length: 350mm Weight: approx. 27kg

GPS SURVEY

Features 12 Channels,

Accurate To Within 15 Metres 10 Saved

Tracks 1536 Track points Waas/egnos Enabled Calculates Current And Average Speed,

Time Of Sunrise/sunset And Trip Distance Can Connect To A Pc For Easy Transfer Of Tracks And Way points (separate Cable Required)

Waterproof Submersible To 1 Metre Requires Two Aa Batteries,

MARSHALL STABILITY TEST APPARATUS

Technical Specification

Heat the weighed aggregates and the bitumen separately up to 170oC and 163oC respectively.

Mix them thoroughly, transfer the mixed material to the compaction mould arranged on the compaction pedestal.

Give 75 blows on the top side of the specimen mix with a standard hammer (45cm, 4.86kg). Reverse the specimen and give 75 blows again. Take the mould with the specimen and cool it for a few minutes.

Remove the specimen from the mould by gentle pushing. Mark the specimen and cure it at room temperature, overnight.

A series of specimens are prepared by a similar method with varying quantities of bitumen content, with an increment of 0.5% (3 specimens) or 1 bitumen content

Before testing of the mould, keeps the mould in the water bath having a temperature of 60°C for half an hour.