Test Rig #4235392

Here simple demonstration setup is provided to experiment with characteristics of Thermocouple. Here using this setup one can calibrate different types of thermocouples. SPECIFICATIONS1. Water Bath with heating arrangement.2. Thermocouple with necessary signal conditioning circuit.3. Thermometer.4. Measurement of oC and Mili Volt on Digital Display5. Digital Indicator: -Least Count: - 1 degDigit: - 3 1/26. Powder coated enclosure.

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 12 kg/cm2 & having a displacement of 0.168 m3/min. driven by squirrel cage induction motor of 2 H.P. Energy meter & 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.

RANGE OF EXPERIMENT:-To conduct a performance test on the two stage reciprocating air compressor and to determine the volumetric efficiency and isothermal efficiencies at various delivery pressures.

SPECIFICATION:-Compressor: Two stage with intercooler.Diameter of LP Cylinder: 55mmDiameter of HP cylinder: 50 mmStroke Length: 65mmCompressor Speed: 720 rpm2HP A/C Motor Air intake Measurement: M/S Tank with Orifice-meter and ManometerBourdon Tube Pressure gauges to measure the pressures.Three Phase energy meter.Multi-channel temperature Indicator to measure various Temperatures.Pressure relief valves. SERVICE REQUIRED:-Suitable floor space to mount apparatus.32 amps Three Phase Electrical Connection.

Test rig enables to study the psychometric process with recirculation of air. The trainer works on simple vapor compression refrigeration Cycle using R 22 as a refrigerant.The system is fabricated such that student can study all the air conditioning Processes. It is also useful to understand working of all the components of system, their performance and control etc. All the components are mounted on the display board, so that students can observe their working easily.

LIST OF EXPERIMENTS:Cooling of fresh air with full exhaust. (Summer experiment)Heating of fresh air with full exhaust. (Winter experiment)Humidification of air.Cooling or heating the air with partial recirculation.(Calculations for mixing of two air streams having different characteristics.)Cooling of air with full re-circulation (operation of the system as a window air conditioner.)

The A.C. test rig works on simple vapour compression refrigeration cycle using R-134a as a refrigerant. The system is fabricated such that student can study all the air conditioning processes. It is also useful to understand working of all the components of system, their performance and control etc.All the components are mounted on the display board, so that students can observe their working easily.

LIST OF EXPERIMENTS:To evaluate the tonnage capacity of the air conditioning system by enthalpy difference method.To evaluate actual and theoretical C.O.P. of the system.To plot the refrigeration cycle on P-H & T-S charts.To plot the psychometric processes on psychometric charts.

Vapour Absorption Refrigerator earlier known as Electrolux refrigerator is a self contained refrigerator working on absorption technology. In the absence of a compressor or pump, the circulation takes place by density difference. The system is pre-charged with three fluids namely water, ammonia and hydrogen. Hydrogen is used as an inert gas and does not undergo any phase change and heat transfer processes. Its purpose is to keep the pressure of the system constant. It uses an electrically operated generator, where, the ammonia vapours dissolved in water are separated and pure ammonia vapours enter the condenser. In the condenser, the high pressure vapours reject its latent heat to the surroundings and get liquefied. The liquid ammonia expands through expansion device where its pressure and temperature is reduced and cold low pressure vapour enters the evaporator where it absorbs heat from the space to be cooled and then vaporized ammonia absorbs in water. This strong solution then enters the generator and the cycle repeats. PRINCIPLE OF OPERATIONElectrolux principle works on 3-fluid system. There is solution circulation pump. Total pressure is the same throughout the system. The third fluid remains mainly in the evaporator thus reducing partial pressure of refrigerant to enable it to evaporate at low pressure and hence low temperature.The schematic diagram of the Electrolux refrigerator working on NH3-H2O system with H2 as the third fluid is shown in figure. Liquid NH3 evaporates in the evaporator in the pressure of H2.Hydrogen is chosen as it is non corrosive and insoluble in water.A thermosyphon bubble pump is used to lift the weak aqua from the generator to the separator. The discharge tube from the evaporator the generator is extended down below the liquid level in the generator. The bubbles rise and carry slugs of weak NH3-H2O solution into the separator. Two U-bends are provided as vapour- locks to prevent H2 from getting into the high side or solution circuit. Partial pressure of H2 provides the pressure difference of NH3 between the condenser and evaporator. Accordingly, we have: In condenser pure NH3 vapour pressure = Total pressure In evaporator NH3 vapour pressure = Total pressure - partial pressure H2 For example, consider the condenser temperature at 50 0C, and evaporator temperature as -15 0C. The corresponding vapour pressures of NH3 are:Condenser, Pk = 20.33bar; Evaporator outlet, Po2 = 2.6bar

The Vortex Tube Test Rig is one of the non- conventional methods of cooling which has no moving parts. It requires only source of compressed air. Through this tube, when air is admitted at high pressure, from one end, hot sir is discharged and from the other end, cold air comes out. The test rig is designed such that all the performance can be evaluated.

CUSTOMER SCOPEElectrical power point 230 volts, 50 HZ, 1 ph, with 16 amps MCB.Clear space of 3 m x 2 m.Compressed air supply at 5 bar & 50 CFM

LIST OF EXPERIMENTSTo understand the principle of working Vortex Tube.To evaluate Adiabatic Efficiency of the system.To evaluate C.O.P. of the system.To find out Refrigeration Effect per kg of air supplied.

The Window AC test rig is designed and manufactured such that the students can understand construction and working of a window type air conditioner and conduct the trial on it to evaluate performance of the same. The window AC is fixed in a rigid angle frame, with its cover cut half open to reveal the internal parts of the AC. The required pressure and temperature tapings are drawn for measurement of pressures and temperatures at salient points. Energy meter is provided for recording compressor energy consumption. A sling psychrometer is provided for measurement of inlet and outlet Dry-bulb & wet bulb temperature. With the help of manometer, velocity of air and consequently the flow rate of air can be determined.

LIST OF EXPERIMENTS:To determine Tonnage capacity of the Window type Air Conditioner by enthalpydifference method.To determine actual C. O. P & theoretical C. O. P of the cycle.To plot operating cycle on P-H chart.

The Refrigeration Test Rig works on vapor compression cycle. The refrigeration (i.e. process of maintaining a closed space temperature below ambient temperature) is accomplished by continuously circulating, evaporating and condensing a fixed supply of refrigerant in a closed system. Evaporation occurs at a low temperature and low pressure while condensation occurs at a high temperature and pressure. Thus it is possible to transfer heat from an area of low temperature (in this case calorimeter) to an area of high temperature (the surroundings).The required instrumentation is provided to measure the various parameters at different points. This includes pressure gauges, temperature indicators and controller, energy-meters, heater for applying load and flow meter to measure the refrigerant flow .

LIST OF EXPERIEMNTS:To evaluate the cooling capacity in Watts & in Tons of the system.To evaluate actual and theoretical C.O.P. of Vapor Compression Cycle.To plot the actual Refrigeration Cycle on P-H chart.To study various components and controls used in Vapor Compression Cycle.

THE WATER COOLER Test Rig enables students to study and understand Vapor Compression Cycle, its components, principle and working. All the components are mounted on rigid steel frame. The trainer consists of a hermetically sealed compressor, forced convection air-cooled condenser, filter / drier, flow meter, expansion device and coil wound type evaporator. Separate pressure gauges are provided to record suction and discharge pressures and digital temperature indicators for various temperatures. The refrigerant used is R-134 which is environment friendly. The water cooler consists of an insulated stainless steel tank around which evaporator tubes are wound and soldered. The tubes are made of refrigerated grade annealed copper tubes. This is a direct expansion type evaporator. The heat absorbed by the refrigerant is passed through water which is continuously flowing.

LIST OF EXPERIEMNTSTo evaluate the cooling capacity of water cooler.To evaluate actual and theoretical C.O.P. of Vapor Compression Cycle.To plot the actual Refrigeration Cycle on P-H chart.To study various components and controls used in Vapor Compression Cycle.