Products

DESCRIPTION :

The apparatus consists of a plain steel shaft encased in a bearing and directly driven by a small electric motor. The bearing is freely supported on the shaft and sealed at the motor end.
The motor speed is precisely controlled and adjusted by specially designed control unit and can be run in both the directions.
The bearing contains twelve equispaced pressure lappings around its circumference and four additional ones along its topside and on a vertical radial plane. All are connected by light and flexible plastic tubes to the rear manometer panel so that pressure head of aoil at all sixteen points can be clearly observed at all times.
Oil is supplied to a low pressure region at both ends of the bearings by an adjustable resevoir fitted at the side of the rear panel.
The bearings can be loaded by attaching various weights to the arms supported beneath it.
A label is conveniently provided at the front of the apparatus.

SPECIFICATIONS :

Journal Bearing -- 70mm dia (Nominal) 75mm dia.
Weights -- 4 adjustable weights.
Recommended oil -- SAE 10
Motor -- D.C. shunt wound Speed range 500-3000 m rev/min
in both the directions
Control Unit -- Special design.
Manometer Panel -- 18 tubes mounted on a wooden back board

FEATURES :

? Pressure profiles along and around the bearing continuously monitored on large manometer panel.
? Theoretical pressure profile (Sommerfeld Analysis) an be carried out and compared with practical results.
? Wide range of speeds and loads possible
? Ideal for group studies and demonstrations.
? A. C. single phase F.H.P. motor is used with a speed control unit.
? Manometer height of 2-3m, provided for specialised low clearance bearing studies (according to order)

RANGE OF EXPERIMENTS :

1) Simple Demonstrations
Observation of the pressure profile at the various conditions of load and speed
2) Expermintal Investigation :
After noting the pressure profile for any chosen conditions the following analysis may be conducted.
a) Plotting the cartesian and polar pressure curves.
b) Plotting the theoretical Sommerfeld curves
- K sin(2 + ncos)
P ? Po = ------------------------
( 1 + ncos)2

SERVICE REQUIRED :

A.C. Single phase 230V 50Hz. Electrical supply.

INSTRUCTION MANUAL :

A Technical Manual accompanies the apparatus. The details the equipment and test procedure.

INTRODUCTION :-

Velocity and accelaration of a body depends upon its inertia for a particular accelarating force. The ?SUPERSONIC? apparatus consists of a flywheel mounted in ball bearings. When torque is applied to it, it starts accelarating If the inertia of flywheel is reduced by weight, then for same torque, velocity and accelaration of lighter flywheel will be greater. Thus effect of inertia upon velocity and accelaration is demonstrated. When weight are attached to flywheel, inertia of flywheel is changed.

SPECIFICATIONS :

1) Flywheel ?200mm x 35mm thick.
2) Pulley and weight set for applying the torque weight set 200gm,500 gm,1 kg
3) Recorder ? Paper roll with reciprocating pen.
4) Small Motor to mounting backet with ball bearings.
5) Flywheel mounting bracket with ball bearings.

SERVICES REQUIRED

1) Bench area of 0.5 X 0.5 m
2) 230 v 50 Hz AC supply.
3) A detailed technical manual accompanies the unit.

It is closed circuit test rig consists of ? ISI mark ? monoblock centrifugal pump. The pump is provided with a vaccum gauge on suction pipe and a pressure gauge on discharge pipe. The gate valve is used to adjust the head on the pump. The discharge is measured by measuring tank / water flow meter. The input power is measured by energymeter.

SPECIFICATIONS:-

1) Centrifugal Multistage Monoblock ? 5 H.P.
2) Pressure Gauge and Vaccum Gauge for measuring the head.
3) Measuring tank of sufficient capacity.
OR
4) Water flow energy meter for measuring discharge.
5) Stop watch.
6) Sump Tank of sufficient capacity.
7) Energymeter to measure input power.

SERVICES REQUIRED :-

1) 440 V 15 Amp. ,stabilised three phase A.C.Supply
2) Floor Area ? 2m x 2m x 1.5m height.
3) Tachometer for speed measurement ( can supplied at extra cost )

A technical Mannul accompanies the unit.

INTRODUCTION :
Measurement of flow constitutes an essential part in all flow systems. The fluid flow in open channel definitely requires some system to measure the quantity of fluid passing through, Direct measurement of flow either gravimetric or volumetric is the most accurate method.
An apparatus for determination of co-efficient of discharge of orifices and mouthpieces consisting of a storage Tank, Collecting Tank, supply Tank and Pump (0.5HP) for lifting water. Control valves and measuring instruments like stop clock, scale X-Y coordinate measuring arrangement etc. will be provided.

• Set of orifices : 10mm. & 15mm.
  
• set of Mouthpiece : Dia. 10mm. L/D 2.5 and 4

BASIC SET-UP :

This is the basic module required by all the experimental setups.

1. STORAGE TANK - :
Made out of fibreglass for corrosion prevention suitably mounted on a sturdy frame support. Size 100cm x 70cm x 23cm (approx.)

2. COLLECTING TANK - :
Made out of fibreglass for corrosion resistance, mounted on the top frame of the storage tank. Size of the collecting Tank is 55cm. x 45cm. x 40cm. Capacity approx. 60 litres, fitted with drain valve 1” size piezo meter Tube with calibrated lits. Marking scale.

3. MONOBLOCK PUMP
Monoblock 1ph, ½ HP pump shall be provided with the setup which shall be mounted on the base plate. Necessary piping with by-pass valve and suction piping are provided. The connection for the test equipment is made by flexible Hose-pipe.

Introduction :-

Engines & Turbines are widely used as Prime Movers.
The Pelton Wheel Turbine using kinetic energy of water is used widely where high head & ample water is available.

SPECIFICATION

a) Sump Tank :- 1200  600  600
Specific Speed :- Approx. 19 rpm.
Net Head :- 45m Approx.
Discharge :- Approx. 820 LPH.
Normal Speed :- 750rpm.
Power :- 3.75kw ( 5HP )
Runner Diameter :- 250 mm.
Number Of Buckets :- 18
Brake Drum Diameter :- 450mm.

b) Centrifugal Pump set suitable for supply of water of size
3?x 2. ?? size 820
lpm at 48 M coupled to 15 HP induction motor 3 phase
400/400 V.A.C. supply.

c) Flowing Measuring Unit : a 65 mm ventury meter of Gunmetel
with two
pressure gauges on a Panel board to measure the differences
of pressure.

d) Starterv switch, piping, foot valve, gate valve.

EXPERIMENTATION

1) Demonstrating the operating characteristics i.e. power efficiency and torque of a Pelton Wheel at various speeds.

2) Determining the performance characteristics and effect of discharge and velocity of impinging water on Turbine operation.

INTRODUCTION :-

An apparatus for determining losses due to friction in pipes of 15, 20 & 25mm. Dia. approx. Consisting of collecting Tank, storage Tank, pump (0.5HP) Control Valves, pressure tapping, Piezometer Board, Stop Clock etc.

BASIC SET UP - :

1. STORAGE TANK
Made out of fibreglass for corrosion prevention, suitably mounted on a sturdy frame support. Size : 100cm. x 70cm. x 23cm. (approx.)

2. COLLECTING TANK
Made out fiber glass for corrosion tank. Size of the collecting Tank is 55cm. x 45cm. x 40cm. Capacity approx. 60 liters, fitted with drain valve 1? size piezomenter Tube with calibrated liters Marking scale.

3. MONOBLOCK PUMP
Monoblock, 1 ph, 1/2HP Pump shall be provided with the set-up which shall be mounted on the base plate. Necessary piping with by ? pass valve & suction piping are provided. The connection for the test equipment is made by flexible Hose pipe.

SPECIFICATIONS

1) Three pipes : 50mm, 40mm & 25mm nominal diameters approximately connected in a common manifold.
2) Pressure tappings at 2.5 m distance.
3) Supporting stand structure for the equipment.
4) Measuring tank of 100 capacity with drain valve & gauge glass.
5) Differential manometer of 1m length without mercury.

RANGE OF EXPERIMENTS :

1) To determine coefficient of friction for pipes.
2) To plot relation between pressure loss & flow rates for a particular pipe diameter.

SERVICE REQUIRED :

1) Water supply arrangement.
2) Suitable drainage arrangement.
3) Mercury manometer of 0.5 kg approx.
4) Floor space : 4.5 x 1m.

The close circit test rig consists ot reciprocating pump connected to D.C. motor controlled with the help of a dimmerstat. The pump is provided with a vaccum gauge on suction pipe and a pressure gauge on discharge pipe. The gate valve is used to adjust the head on the pump. The discharge is measured by measuring tank / water flow meter. The input power is measured by energymeter.

SPECIFICATIONS:-

1) Reciprocating pump driven by D.C.Motor ?1 H.P.
2) Pressure Gauge and Vaccum Gauge for measuring the head.
3) Measuring tank of sufficient capacity.
OR
Water flow energy meter for measuring discharge.
4) Stop watch.
5) Sump Tank of sufficient capacity.
6) Energy meter to measure input power.

FEATURES :-

1) The equipment is coated with an attractive and anticorosive powder coating
2) The equipment consists of ISI standards of Energy meter & Water flow meter.

SERVICES REQUIRED :-

1) 220 V 15 Amp. ,stabilised three phase A.C.Supply
2) Floor Area ? 2m x 2m x 1.5m height.
3)Tachometer for speed measurement ( can supplied at extra cost )

A technical Mannul accompanies the unit.

The close circit test rig consists ot reciprocating pump connected to A.C. motor with the help of a stepped cone pulley. Adjusting the belt on another pulley can change the speed of the pump. The pump is provided with a vaccum gauge on suction pipe and a pressure gauge on discharge pipe. The gate valve is used to adjust the head on the pump. The discharge is measured by measuring tank / water flow meter. The input power is measured by energymeter.

SPECIFICATIONS:-

1) Reciprocating pump driven by A.C.Motor ?1 H.P.
2) Pressure Gauge and Vaccum Gauge for measuring the head.
3) Measuring tank of sufficient capacity.
OR
Water flow energy meter for measuring discharge.
4) Stop watch.
5) Sump Tank of sufficient capacity.
6) Energy meter to measure input power.

FEATURES :-

7) The equipment is coated with an attractive and anticorosive powder coating
8) The equipment consists of ISI standards of
a. Energy meter
b. Water flow meter.

SERVICES REQUIRED :-

1) 220 V 15 Amp. ,stabilised three phase A.C.Supply
2) Floor Area ? 2m x 2m x 1.5m height.
3)Tachometer for speed measurement ( can supplied at extra cost )

A technical Mannul accompanies the unit

INTRODUCTION :-

Vapour Compression Refrigeration Cycle is a very widely used cycle. The main object is to demonstrate Refrigeration system with basic components and necessary controls. The practical working is demonstrated here and also a considerable amount of theoretical analysis and performance can be studied.

SPECIFICATIONS

1. Compressor : Hermetically sealed Kirloskar Make or equivalent (920 Kcal / Hr rated cooling capacity
2. Air cooled Condenser ? Suitable for above compressor with suitable Cooling fan.
3. Expansion systems
a) Capillary Tube
b) Thermostatic Expansion valve.
4. Evaporator coil : Suitable for above compressor immersed in water tank of stainless steel.
5. Electric Heater : For balancing Refrigerating effect produced.
6. Rotameter : For liquid refrigerant flow rate
7. Refrigerant : Freon 12
8. Energy meters for Power measurement of compressor & Heater (Calorimeter)
9. Dimmerstat : 230 V.A.C. Single phase for Heater control.
10. Pressure gauges 2 Nos. for HP & LP Measurement.
11. Temp. Indicators.
12. Solenold alve: 230 V Supply : 1 No.
13. H. P. / L. P. cutout : to suit compressor pressures.
14. Sight Glass : 1No.
15. Service Valves : 3 Nos. needle type.
16. Ammeter
17. Voltmeter
18. Thermostat
19. Filter / dryer
20. Illustrative Instruction Manual.
21.The circuit mounted on a board equipped with all controls

RANGE OF EXPERIMETS

1) To demonstrate the basic vapour compression Cycle of Refrigeration.
2) To study theoretical cycle and plotting on T. O and P.H. charts.
3) To find out refrigerating effect and work input hence actual and theoretical C.O.P.

SERVICE REQUIRED

1) Single phase ? 230 V.A.C. Supply (15 Amp.)
2) Freon ? 12 gas ? 2 kgs.
Approximately for initial charging.
3) Charging Unit ? for maintenance.

INTRODUCTION

Whenever fluid flows the pipe under pressure, certain amount of head is lost due to resistance. The lose of Energy however depends upon type of flow.
(1) Laminar (2) Turbulent

FEATURES :

1) Rust- proof powder coated tank.
2) Glass tube provided to visualise the flow.
3) Dye tank with Pottasium Permangnet.

DISCRIPTION

The equipment mainly consists of a storage tank and another small tank which contains ?dye?. The main tank has a horizontal transparent tube with a bell mouth entry and a flow control valve at the discharge side.
The discharged water falls in atmosphere and the rate flow i.e. the velocity of water is varied by the flow control valve.
The dye is introduced in the tube at the bell mouth section.

SPECIFICATION

(1) Storage tank with flow - 400 mm x 400 mm x 700 mm
(2) Measuring Flask - 1 ltr.
(3) Dye bottle tank - 170 mm x 300 mm long
(4) Transparent tube - 1 meter long wit 25 mm I.D.
(5) Stand to mount glass tube
(6) Balancing tank to maintain - 300 mm x 300 mm x 250 mm constant head.
(7) Potassium Permangnet provided as dye.

RANGE OF EXPERIMENTS

1) To determine the Reynold?s number and hence the type of flow either Laminar or turbulent.
2) To determine upper & lower critical Reynold?s number?s & velocities.

Almost care is taken for preparing this literature, but still there are any mistakes, those may be excused. We reserve our right to change or modify the equipment without notice.