Sangli, Maharashtra, India
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The apparatus consists of a storage water tank, embraced by evaporator coil of the cooling unit, cooling cycle comprises of a hermetically sealed compressor, air cooled condenser, a capillary tube as expansion device and an evaporator coil. The trainer is designed for the study of features of a Water Cooler Trainer. It has a facility to measure various parameters like temperature at different points, pressure at different points, refrigerant flow rate, etc. Various measurements provided enables students to determine the theoretical and actual COP, power consumption, actual cooling capacity refrigerant flow and compressor volumetric efficiency of compressor.
SPECIFICATIONS:
1)Cooling Cycle-
2)Water drain tap and float operated inlet water tap are provided forwater tank with insulated lift door at top.
description:-
the a.c. Test rig works on simple vapour compression refrigeration
cycle using r 134 a 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.
specifications subject to change without any notification.
list of experiments:
to evaluate the tonnage capacity of the air conditioning system by enthalpy difference method.
technical specifications:-
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SUB-TITLE |
PARAMETER |
DESCRIPTION |
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MODEL |
NAEAC-01E |
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REFRIGERATION SYSTEM |
Capacity |
0.30 TR @Rated test conditions |
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Compressor |
Hermetically sealed. Make :Emerson Climate Tech./ Tecumseh Products India Ltd./ Danfoss Ltd./or any equivalent make. |
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Condenser |
Forced convection air cooled. |
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Condenser fan |
Axial flow. |
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Drier/ filter |
Provided. |
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Expansion device |
Capillary Tube. |
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Evaporator |
Forced convection air cooled. |
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Evaporator Fan |
Axial Flow Type |
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Dehumidifier or Reheater |
1000 Watts; Finned Type. |
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Humidifier |
Provided |
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Refrigerant |
R-134 a. |
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CONTROLS & INDICATIONS |
HP / LP Cut-out |
Alco/ or Danfoss / Castle or equivalent make. |
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Temperature |
6 Channel facility with digital display. |
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Pressure |
2 Nos.; Dial type pressure gauges. |
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Refrigerant Flow |
Glass tube Rotameter provided. |
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Air temperature |
DBT & WBT measurement by sling psychrometer. |
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Air flow measurement |
By inclined tube manometer. |
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ELECTRICAL SYSTEM |
Supply |
220-240 Volts, 50 Hz, 1 phase. |
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Input power |
1.2 kW. |
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Rated current |
5.5 Amps. |
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Indicating lamps |
Provided for compressor and heater. |
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Energy-meters |
Range 0-20 A; provided for Compressor |
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CONSTRUCTION |
Material |
Panel: 1.2 mm thick CRCA |
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Outer finish |
Powder coating |
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Size |
900 x 600 x 1480 (L x B x H) |
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DESCRIPTION:
The Window AC test rig is designed and manufactured such that the studentscan understand construction andworking 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 toreveal 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 psychomotor 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.
Technical Specifications:
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SUB-TITLE |
PARAMETER |
DESCRIPTION |
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MODEL |
NAEAC-02 |
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Refrigeration System |
Capacity |
0.75 TR at rated test conditions* |
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Compressor |
Rotary type; Hermetically sealed. |
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Condenser |
Forced convection air cooled |
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Condenser fan |
Axial flow type. |
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Evaporator |
Forced convection |
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Evaporator fan |
Axial flow type. |
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Drier/ filter |
Molecular sieve type. |
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Expansion device |
Capillary Tube |
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Accumulator |
Copper / M.S. shell suction line accumulator provided. |
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Refrigerant |
R-22 |
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INSTRUMENTATION |
Temperature |
Sling Psychrometer for air temperatures & Digital Indicator for refrigerant temperatures. |
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Velocity |
By inclined tube manometer |
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Pressure |
Pressure gauges at suction & discharge |
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ELECTRICAL SYSTEM |
Supply |
220-240 Volts, 50 Hz, 1 phase. |
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Input power |
1.2 kW |
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Rated current |
8.0 Amps. |
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Energy-meter |
Provided for compressor |
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CONSTRUCTION |
Material |
Panel: 1.2 mm thick CRCA |
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Outer finish |
Powder coating |
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Size |
650 x 600 x 1165 mm ( L X D X H ) |
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DISCRIPTION :- The test rig comprises of a Single Stage Air Compressor fitted with an air tank with orifice, pressure gauges and an energy meter to measure the input. A digital Temperature indicator measures the temperatures at various points. The compressor is mounted on air receiver along with the motor, and is provided with air relief valve (safety) and a pressure switch. The unit determines volumetric efficiency and isothermal efficiency at various discharge pressure SPECIFICATIONS :- 1)Single stage, single cylinder air compressor driven by a 1 hp. motor, with receiver and pressure safety valve. 2) Digital multi channel temperature indicator to measure the temp. at various point. 3) Pressure gauge to measure discharge pressure. 4) Energy meter to measure input power 5) Orifice with water manometer to measure quantity of air sucked in. SERVICES REQUIRED : 1) Floor space of 2.5 x 1.5 m 2) 440 V, 15 A, 3 ph. Ac supply with neutral and earthing connection. 3) A hand tachometer. (It can be supplied at extra cost) |
Specifications:
Fixture for measuring bearing radial clearance
