J.P. TECHNO INSTRUMENTS Karad, Satara, Maharashtra

The ‘J P T I’ unit consists of, a base upon which bearing holders and driving motor are coupled. Bearing holder is provided for fitting various bearing to provided different conditions for test shafts, viz. both end fixed and one end free. A variac provided for speed control of driving motor. The unit demonstrate the phenomenon of whirling of shaft. After the test shaft can not be used, hence unit only demonstrate the principle.

0.5 Kg to 300 Kg Models Hard Bearing design Single plane version Choice for variety of Instrumentation Variety of fixtures available

universal vibration apparatus       the ‘j p techno instruments’ designed the vib lab for conducting various experiments to illustrate and verify the principles and relations involved in study of vibrations. this apparatus enables a comprehensive arrangement of vibration experiments to be conducted on a single sturdy m. S. Channel (100 mm x 50 mm) basic frame. The experiments are specially designed for quick and easy assembly on the frame. Many components are common to several experiments.

The M P T T unit consists of a main spindle driven by variable speed motor. Spindle can be fitted with four different governor assemblies. A scale with pointer is provided. We can calculate each characteristics of each governor at different speed and compare the performance.

Models : 60 N Mtr to 1kN Mtr. Versatile Simple Operation

Mechanical Type Simple Operation Fixed / Variable Speed Available No foundation Required

Stroboscopic Table top Balancing Machines Soft Bearing, high speed Design no Foundation Required best suitable for small components 50gms to 10 kg in different models simple in operation

The ‘J. P. T. I.’ unit consists of a hemisphere surrounded by hot water. The instrument determines stefan boltzmann constant. Water heating tank is provided to supply hot water. Stefan Boltzmann constant is determined from the temperature raise rate when blackned disc is inserted at the center of disc from hemisphere by radiation & its temperature begins to rise.

JPTI’ STEAM LAB (mini power plant) is rugged in construction . It employs all industrial components. But for the size it is a power plant. It is NON IBR Type boiler with single stage steam turbine. The plant is complete with condenser all measurement system, safety device, pipings, control systems etc.         EXPERIMENTAL CAPABILITIES       1. Efficiency of Boiler   2. Heat Balance of Boiler   3. Various Efficiencies of Turbine   4. Heat Balance of Turbine   5. To plot curves of Pressure Vs Load   6. To plot curves of Steam flow rate Vs Load   7. To determine dryness fraction of Steam    

Static & Dynamic Balancing Apparatus       The ' J P T F ' unit consist of a precision ground shaft rotating freely in ball bearing. For static balancing demonstration, an eccentric weight creates unbalance and value of relative weight require to balance the eccentric weight statically is determined. For dynamic balancing apparatus four weight assembly mounted on shaft is provided. Longitudinal and Angular position of weights are calculated from respective relative weight and the weight are mounted at the position. The rotation is vibration free when rotated by small motor.

Rockwell Cum brinell Type Rockwell cum Superficial Type Application Oriented Special Accessories

Two Stage Air Compressor Test Rig       A) The 'J.P.T.I' unit consist of one experimental type two stage reciprocating air compressor air cooled inter cooler ,suitable for a pressure of 11 kg/cm2 & having a displacement of 0.168 m3/min. driven by squirrel cage induction motor of 2 H.P. Energymeter & stop watch to determine the input to the motor. The above motor suited for 400/440 V. 3 ph. 50 cycles A. C. supply. The motor is provided with switch & starter.       B) Accessories:- The equipment complete with the following standard accessories comprising the following- Two pressure gauges for measuring the pressure, One shut off valve, One non-return valve, pressure release valve. A receiver fitted with oil & water separator a drain cock, automatic pressure switch.       C) Air intake measuring arrangement-Air intake measuring device with orifice plate, differently manometer, M.S. air intake reservoir of size 0.4 m. x 0.4 m. x 0.4 m. mounted on a sturdy stand.    

JPTI,S Pneumatic circuit trainer, along with comprehensive users manuals enables a detailed course in Pneumatics suitable for use in Educational Institutions and Industrial establishments. Unit has a mobile frame fitted with castor wheels, a inclined working panel, storage cupboards, working elements, actuators, nylon tubings FRL etc. Quick couplings fitted with components and nylon tubings enables to construct any circuit easily, without using any hand tools.

The ‘J. P. T. I.’ unit consist of two pipes of different diameter. A collect tank is pro vided to measure the actual discharge. A differential manometer to measure loss of heads in pipes , a flow control valve is provided. Experiment can be carried out at various flow rate.

PELTON WHEEL TURBINE TEST RIG       The ‘J.P.T.I.’unit consist of a small pelton wheel connected to rope brake dynamometer. It is high head at minimum discharge turbine. Water is given from reservoir to the turbine . A centrifugal pump is provided to supply the water to turbine. Orificemeter & pressure gauges provided to measure flow rate, water jet is directed over the bucket by a nozzle Thus, we can determine B.H.P. & I.H.P. & various efficiencies.    

The 'J. P. T. I. ' consists of supply tank along with orifice and mouth piece fixed to the tank. A pointer is provided at the discharge of orifice to demonstrate & to determine X, Y co -ordinate of jet .

The 'J.P.T.I.' unit consist of flow channel of proper length & width. The notch is fitted, water supply is given at one end of channel. Water flow over notch . Arrangement are made to measure the still level to determine the head.

Multi Cylinder Petrol Engine Test Rig With Hydraulic Dynamometer       The ‘J.P.T.I.’ unit consist of a   Engine :- Petrol engine test rig consisting of a multi cylinder 4- stroke 4 cylinder petrol engine, developing about 10 H.P. at 3000 R.P.M. engine.     Loading device :-Coupled on a sturdy base with a ‘TECHNOMECH’ Hydraulic Dynamometer complete with weighing arm with dead weight in kg.and load cell with load indicator.     The unit is accompanied with the following accessories:- An ignition switch, a radiator, a self starter, a battery ammeter, a throttle control with an indicator for throttle opening. Special arrangements by switches for cutting off ignition of each cylinder for morse test, all mounted on a suitable panel board, a battery for starting the engine, clutch arrangement.     Fuel arrangement:- Fuel tank mounted on a sturdy iron stand burette tube , 3 -way cock connecting tube, a stop watch.     Cooling water arrangement :-Cooling water arrangement by cooling pipings. A Measuring Jar to determine the discharge of cooling water. Special arrangement to use either radiator or external cooling water supply system.     Exhaust gas temperature (Digital temp. indicator)     Air intake measurement :- Air intake reservoir with orifice plate & Differential manometer

Motorised Gyroscope Apparatus       The ' JPTF unit of a motorised gyroscope consist of a disc rotor mounted on a horizontal shaft rotating in the ball bearing of one frame. The rotor shaft is coupled to a motor mounted on a trunnion frame having bearings in the yoke frame which is free to rotate about vertical axis. Thus a disc can be routed about three perpendicular axes. Angular scale and a pointer fitted to frame help to measure precision rate.

For Plastic, Metals etc. Models for every application simple to operate .

KAPLAN TURBINE TEST RIG       Kaplan turbine 150 m.m.size to develop 1 kw. at 1000 R.P.M.1500 L.P.M. at 5 to 8 m. head, complete with rope brake arrangement with spring balances. Orificemeter & pressure gauges provided to measure flow rate, for conducting experiments in Metric units.    

Thermal Conductivity by Guarded Hot Plate Method       The ‘J.P.T.I.’ unit consists of a guarded hot plate assembly formed by a central heater and sandwitched between the lower and upper plates and rings. Two identical specimen of the material to be tested are clamped between the two cooling plates and the heater plate assembly. Heater input to central heater measured by voltmeter and ammeter giving the heat flow rate across the specimen. Thermocouple are placed in heater and cooling plated to measure the temperature difference across the specimen.     2. Thermal Conductivity of Insulating Powder       The ‘J.P.T.I.’ unit consists of two thin wall concentric copper spheres. The inner sphere house the heating coil. Heating coil is made up of nichrome wire wound on mica sheet. The insulating powder packed between two shells. Power supply to the heater is given through a dimmerstat & is measured by voltmeter & an ammeter.Temperature can be measured with the help of thermocouples. Four thermocouple are embedded on inner sphere and six thermocouples are embedded on outer sphere .     3. Thermal Conductivity of Metal Rod       The ‘J. P. T. I.’ unit consists of a copper bar, which is heated at one end ,a heat sink is provided at other end. The test section of bar is properly insulated and along the length of bar, thermocouples are attached. Heat conducted through the section of bar is measured by heat collection in water cooled heat sink. A panel comprising of controls and measurements is provided, which provides easy operation and study mounting of unit. Bar of different metal other then copper can be provided, on request at extra cost.     4. Shell & Tube Heat Exchanger ( Water to Water Type )       The ‘JPTI’ unit consists of a two pass design in which a mild steel shell houses the copper tubes. The baffle in the end box make the tube arrangement at the center to make the heat exchanger of two-pass type. The cold fluid, i.e. cold water enters the shell & flows over the tubes. Hot fluid is hot water, which is obtained from a geyser .Temperature of hot water & cold fluids measured by thermometers. By measuring the flow rates & temperatures of hot & cold fluids, performance of heat exchanger viz. LMTD heat transfer rate & heat transfer coefficient can be determined.     5. Parallel Flow / Counter Flow Apparatus       The ‘J. P. T. I.’ unit consists of a tube in tube type concentric tube type exchanger hot fluid flow through inner tube and cooling water flows through the annulus. The apparatus is mounted on a board with system of valves and pipes. Hot fluid flows always in one direction & cold fluid flow direction can be changed accordingly. Inlet temperature of heat exchanger can be measured by thermometers. A electric geyser is used to heat the water. Outer tube of the heat exchanger is provided with adequate insulation to minimise the heat losses.     6. Critical Heat Flux Apparatus       The ‘J P T I’ unit consists of a cylindrical glass container containing distilled water. Heating surface is in the form of a Nichrome heating wire completely submerged in the water. Thermometer is provided to measure the temperature of water in the container, variac is provided to supply electrical input to the test heating wire.     7. Stefan Boltzmann Apparatus       The ‘J. P. T. I.’ unit consists of a hemisphere surrounded by hot water. The instrument determines stefan boltzmann constant. Water heating tank is provided to supply hot water. Stefan Boltzmann constant is determined from the temperature raise rate when blackned disc is inserted at the center of disc from hemisphere by radiation & its temperature begins to rise.     8. Emissivity Measurement Apparatus       The ‘JPTI’ unit consists of a two circular aluminium plates of identical dimensions. One of the two plates is the blackened and considered as black surface. While other plates is the test plates. Both the plates have Nichrome wire heater bound in mica sheet attached to them. Both the plates are keep in close enclosure. Supply of heat to both the plates is given by different variacs measured by a voltmeter & ammeter. Heat input to both the plates can be read with the help of SPDT switches. A temperature indicator is provided to measure the temperature of both the plates.     9. Forced Convection Apparatus       The ‘JPTI’ unit consists of mainly a centrifugal blower, electrically heated test section, control valve to regulate the air flow and an orificemeter and U-tube water manometer for flow measurement. Thermocouples are used to measure the pipe wall temperature and also the air temperature at inlet and exit. The apparatus mainly designed to find out the value of heat transfer coefficient under the air different conditions.     10. Natural Convection Apparatus       The ‘J P T I’ unit consists of vertical cylinder fitted in a large enclose, with top and bottom open to ensure undisturbed natural convection apparatus. Perspex sheet provided at the front side of enclosure for visual display. Heating element provided inside the cylinder to heat it uniformly and the heat is dissipated from other surface by natural convection to ambient air. Thermocouples cylinder surface and one more thermo couple records the ambient temperature in the duct. The heater input can be varied with the help of a dimmerstat and measured by voltmeter and an ammeter.     11. Pin Fin Apparatus       The ‘J.P.T.I.’ unit consist of a brass or aluminium fin of a circular cross section fitted across at one end of a long rectangular dust. The other end of the duct is connected to suction side of the blower and the air flows past the fin perpendicular to it’s axis. One end of the fin projects outside the duct & is heated by an electric heater. Temperature at five points along the length of the fin are measured by thermocouples. The blower is not run in natural convection condition while it is run in forced convection conditions. The air flow rate can be varied by control valve on delivery side of the blower.     12. Heat Pipe Apparatus       The ‘J.P.T I’ unit consists of 3 identical cylindrical conductors in respect of geometry. One end of these is heated electrically while there are small capacity tanks acting as heat sinks at the other end. The unit consist of a heat pipe, a copper pipe & stainless steel pipe. Thermocouples are embedded along the lengths to measure the temperature distribution & the heat transfer rate is noted in terms of the temperature rise in the heat sink tanks. Performance of heat pipes as a super conducting device could be studied well in terms of the temperature distribution along the length at a given instant and could be com pared with other two members. The apparatus could be operated under different heat input rates to the heaters.     13. Lagged Pipe Apparatus       The ‘J.P.T.I’ unit consist of a three concentric pipes of a very small thickness as com pared to diameter. They are arranged concentrically over two supports and closed with the help of two disces. The annual in between the cylinders are filled completely by two different insulating materials. Thermocouples at proper position are used to mea sure the temperature. Inside the inner pipe a nicrome wire heater is placed. Heat input to the heater is given through a variac and measured by a voltmeter and ammeter. By varying the heat input rates wide range of experiments can be performed.     14. Composite Wall Apparatus       The ‘J.P.T. I.’ unit consist of a three slabs of different materials namely mild steel, wood & backlite. Nicrome heater is provided to supply heat input across these composite walls. Total heater assembly comprises of a heater bound between two aluminium plates, on both sides of this heater identical structures of composite wall are placed. Thermocouples are provided at proper position in the composite wall to record desired inside temperature of composite wall. Multi channel temperature indicator is used to measure these temperature. Small hand press provided to press the wall on each other & to ensure that no air gap remaining between two plates. Heat input to heater is given through a variac & measured by voltameter & ammeter. By varying heat input & combinations of the composite structure wide range of experiment can be performed.     15. Thermal Conductivity of Liquid       The ‘J.P.T.I.’ unit consists of a apparatus is based on guarded hot plate method & cold plate method. A thin horizontal layer of liquid, under test is sandwitched between hot and cold plate. Hot and guard plates are heated by specially designed electrical heaters. Hot & cold plates are circular in shape and are made from good conducting materials. A circular trough is formed on cold plate to hold the liquid during testing. A coolant water will circulate through cold plate continuously. Cr-Al thermocouples are used for temperature measurement.     16. Condensation in Drop & film Apparatus       The ‘JPTI’ unit consist of a transparent gas cylinder at the top of which two cylinders hang & steam is also admitted at the top one of the condenser is provided with chrome plated surface and other with natural surface finish to promote film wise condensation water is circulated through the condensers from common intel. The transparent cylinder allows visualisation of condensation process. A rotameter measure the water flow & a pressure gauge show the steam pressure. A digital temperature indicator mea sures temperatures at various points.     17. Unsteady State of Heat Transfer Apparatus       The ‘JPTI’ unit consist of small test cylinder. The cylinder is heated by a hot bath, till steady state is reached and then cooled in air . During both, heating & cooling, temperature of the cylinder is function of time & hence heating & cooling of cylinder are unsteady state heat transfer process. The temperature of test cylinder is measured with the help of thermocouple. The hot bath is pro vided with heater with input control for experimentation of different bath temperatures.

  FRANCIS TURBINE TEST RIG       JPTI’S Francis turbine 75 m.m. size to develop 1 Kw at 1250 R.P.M. with a flow of about 1000 L.P. M. at 10m. supply head, complete with rope brake arrangement,Orificemeter & pressure gauges provided to measure flow rate, and a set of dead weights etc. for conducting experiments in metric units.

Light Wt. Compact Size Table Mode, No Need to foundation Simple Lever System of Changing Load. Accurately Calibration as per IS 5075 Calibration in Nm available on request