Refrigeration and Air Conditioning Labs

The unit is useful to calculate power consumption & theoretical & actual COP of the system. A hermetic compressor, air-cooled condenser, capillary tube as expansion devices & evaporator, heater in evaporator simulates heat load. Measurement – condensing pressure, evaporating pressure, input to compressor heater.

The unit is useful to calculate Actual COP, Theoretical COP, Carnot COP & heat transfer co-efficient in evaporator and also demonstrates use of controls in refrigeration cycle. A hermetically sealed compressor using R-12 refrigerant, air-cooled condenser, evaporator with water as medium & Heater, Rotameter for flow measurement, thermostatic expansion valve with solenoid valve.

The unit demonstrates super conductivity of heat pipe as compared to copper pipe as good conductor of heat and to stainless steel pipe as same material of construction. The unit provides Heat pipe, copper pipe & stainless steel pipe. All the pipes are heated at one end & water tank at other end. To find out isothermal operation of heat pipe as compared to other conductors by using thermocouples.

The unit is useful to study of year round air conditioning .A duct fitted with cooling coil, heaters and steam humidifier, to simulate summer or winter conditions, simulating conditioning section using cooling coil, heaters and steam humidifier connection. Various measurements for cooling cycle, preheater & reheater.Axial flow fan to generate the air flow

The unit is useful to study principals of recirculation. A small room under test. Unit consists hermetic compressor, air cooled condenser, expansion valve, direct expansion cooling coil, preheater and reheater arrangement to recirculate the air partially or fully. Air by blower & controlled by butterfly valve.

The unit is useful to study the application of window air conditioner & evaluation of its performance. A transparent front room is connected by a small air conditioner with a heater inside the room. Various measurements are provided to study performance of system i.e. COP of system actual & theoretical cooling capacity of system & power consumption of unit with different load conditions.

The unit is useful to study the cycle, calculate theoretical COP and compare the time formation for different ice can thickness. A hermetically sealed refrigerant compressor, air cooled condenser, evaporator with forced circulation of brine & fed by thermostatic expansion valve. Brine agitator to circulates brine over the evaporator.

The unit is useful to study the ice plant cycle within a short period a conventional ice plant take 12-24 hours to complete cycle, this ice plant is specially designed to demonstrate all the process of ice formation like bubbles flakes formation to be complete within on experimental period of 4 hours.

The unit is useful to determine the theoretical & actual COP, power consumption, actual cooling capacity refrigeration flow and volumetric efficiency of compressor. A storage water tank embraced by evaporator coil of the cooling unit. Hermetically sealed compressor, air cooled condensers capillary tube as expansion devices & evaporator coil.

The unit is useful to study the parameters of refrigeration cycle of Domestic Refrigerator. Unit consists a hermetically sealed compressor air cooled condenser, capillary tube and natural convection type evaporator. Various measurements are provided power consumption, COP theoretical & actual refrigerating effects, refrigerant flow rate and effect of door opening on power consumption.

The unit is useful to study characteristics of a desert cooler at various air & water flow rates. Air flow by axial flow fan enclosed in a Box over the Khus curtains water sprayed by a pump & sprinkler arrangement

The unit is useful to study the operation of cooling tower and calculate the energy balance. A forced brought, counter flow type cooling tower. Evaporative cooling of water occurs due to the current of air & water gets cooled.

The unit is useful to study the construction and working of different controls

The unit is useful to study a compact self contained unit, hermetically sealed compressor continuous water circulated by condenser & evaporator, flow of water & evaporator & liquid refrigerant measured by rotameters. Energy input to compressor measured, balance of heat added during the cycle & heat removed by condenser can checked actual & theoretical & carnot COP's of system can be determined & principle of energy conservation by heat pump and heat transfer co-efficient on coils of condenser & evaporator can also be studied.