DESCRIPTION:-

The unit enables students to study the various parameters affecting the performance of a domestic refrigerator. It consists of refrigeration cycle of domestic refrigerator, it consists a hermetically sealed compressor, air-cooled condenser, capillary tube and a natural convection type evaporator. The evaporator is fitted with a small heater to simulate different load conditions various measurements are provided so that power consumption, COP, theoretical and actual refrigerating effects refrigerant flow rate and effect of door opening on power consumption can be studied and also students can visualize automatic operation of unit using a thermostat.

Technical Details:-

• Compressor – Hermetically sealed, Kirioskar make having capacity of approx. 1/25 ton of refrigeration.

• Air – cooled condenser with natural convection airflow.

• Capillary tube of matched length as expansion device.

• Evaporator coil with an electric heater inside and adequate glass wool insulation on all side.

• Energy meter Tore compressor input power measurement.

• Pressure gauge for condensing and evaporating pressure.

• Flow meter for liquid refrigerant flow

• Digital Temperature indicator for measurement of temperature

• High & low pressure cutout.

• Thermostat.

• Necessary Switches.

DESCRIPTION:-

Window air conditioner is becoming now a day’s necessity. The unit demonstrates the application of window air conditioner & evaluation of its performance. It consists of a small room to which a small air conditioner is connected the room is provided with a transparent front cover with a heater inside to simulate heat load in the room. Various measurements are provided so that performance of system that is COP of system, actual & theoretical cooling capacity of system & power consumption of unit with different load conditions.

Technical Details:-

• Compressor – Hermetically sealed, Kirloskar make, having the capacity of 1/10 ton of refrigeration using R-12 refrigerant to keep room temperature between 20 to 30 c.

• Condenser – Finned tube type, with forced air flow over the tubes,

• Capillary tube of matched length as expansion device.

• Evaporator – Finned tube type with forced air flow,

• Room – 0.6 X 0.7 X 0.7 m. height, provided with transparent front wall. A heater with input control is provided inside the room. Which simulates different load conditions.

• Measurements and Controls

• H.P. / L.P. Pressure gauges

• Digital temperature indicator to measure the temperatures at various points.

• Energy meters to measure input to compressor & heater.

• High and low pressure cutout.

• Thermostat to put off the compressor at set room temperature.

• Necessary switch for electrical components.

DESCRIPTION:-

Split air conditioner is becoming now a day’s necessity. The unit demonstrates the application of window air conditioner & evaluation of its performance. It consists of a small room to which a small air conditioner is connected the room is provided with a transparent front cover with a heater inside to simulate heat load in the room. Various measurements are provided so that performance of system that is COP of system, actual & theoretical cooling capacity of system & power consumption of unit with different load conditions.

Technical Details:-

• Compressor – Hermetically sealed, Kirloskar make, having the capacity of 1/10 ton of refrigeration using R-12 refrigerant to keep room temperature between 20 to 30 c.

• Condenser – Finned tube type, with forced air flow over the tubes,

• Capillary tube of matched length as expansion device.

• Evaporator – Finned tube type with forced air flow,

• Room – 0.6 X 0.7 X 0.7 m. height, provided with transparent front wall. A heater with input control is provided inside the room. Which simulates different load conditions.

• Measurements and Controls

• H.P. / L.P. Pressure gauges

• Digital temperature indicator to measure the temperatures at various points.

• Energy meters to measure input to compressor & heater.

• High and low pressure cutout.

• Thermostat to put off the compressor at set room temperature.

• Necessary switch for electrical components.

DESCRIPTION:-

The Ice Plant Test rig works on simple compression refrigeration cycle and uses R134-a or R404-A as a refrigerant. These are environment friendly. It is also useful to understand working of vapour compression system, its performance and controls used. The arrangement of parts such that, all the parts are visible and working can be easily understood.

Technical Details:-

• Compressor - Hermetically sealed

• Condenser - Forced convection air cooled

• Condenser fan - Axial flow type

• Evaporator - Immersed (Refrigeration grade copper tube); Direct expansion type; 3/8” OD x 35’

• Drier/ filter - Provided; Molecular sieve type

• Expansion device - Capillary tube

• Insulation - 65 mm thick, Polyurethane foam (PUF)

• Refrigerant - R 134a/404a

• Temperature indicator with 6 no. of selector points provided

• Pressure - 2 Nos. for suction and discharge

• Brine Solution - Ethylene Glycol + Water

• Supply - 230 Volts, 50 Hz, 1 phase

• Input power - 400 Watts.

• Rated current - 3.0 Amps

• Stirrer Motor - Provided