Certificates | SGS | ISO-9001 | Commercial Refrigeration Trainer - All valves are mounted to cut out and by-pass all accessory equipment - All are malfunctions to be simulated for students to locate with the help and values - Fan Motors for evaporator has variable speed to practically observe the changes in pressure by changing the air blow and Temperature - To have a facility to change the system from Direct cool to No Frost with the single switch - System in consist of thermostatically controlled with range –20 to 10 c° Technical Specifications: Power Supply- 230 VAC Frequency - 50 Hz Refrigerant - C.F.C. gas free Systems is mount on Steel moveable table   Domestic Refrigeration Trainer Pressure gauges to be provided to Monitor gas pressure at various parts Refrigerator flow to evaporator can be observed and operated by elixir capillary tube Thermal or by their Expansion value Drop fans at evaporator and condenser are fitted to prevent rusting of system components. Single Phase 0.38 KW Hermetically sealed reciprocating compressors and fan motor should be in variable speed. Single Switch for changing NO FROST to direct cool Should be provided low-hi cut out to prevent damage to the compressor System is consist of thematically control with the range 20 to 10 degrees C° Technical Rectifier Power Supply        -230VAC Frequency             -50HZ Refrigerant            -CFC gas free The domestic refrigeration trainer allows to single out all critical components of the thermodynamic cycle and drives the student's attention to problems related to the frigorific gas which in domestic refrigerators is normally scarce, due to low convection in the areas where they are installed. For this reason, another convector was installed which can be series connected to the first one, in order to ensure excellent condensation even at extremely demanding working conditions. Characteristics The trainer is provided with a trolley and is designed for handy use in different environments. It includes: industrial-like, connected and functioning components and instruments, easily accessible and visible. wide colour silk-screen painted panel which reproduces the whole circuit, with lamps and switches complete set of instruments, for operating data acquisition  by-pass knobs for simulation and trouble shooting procedures safety devices: differential ground fault interrupter and usual installation protections. Technical Specifications silk-screen painted colour panel, with pilot lamp, assembled on an oven-baked painted steel structure 1/12 HP air-tight compressor double static wire condenser highly insulated cold store provided with a thermostatic probe, a thermometric probe and a static evaporator 5 detection valves 1 electronic digital thermometer, accuracy ±1% f.s., with 2 probes and 10 test holes located along the circuit for temperature assessment 1 float flowmeter, accuracy ±3% f.s., 1 humidity gauge, range: 10-90%; 2 parallel dehydrating filters 2 manometers, 0-30 and 0-10 bar, accuracy ±0.6% f.s., connected to three circuit points needle valve for gas loading electric instruments, 1.5 class, including: 1 wattmeter, 1 voltmeter and 1 amperometer.     Domestic Air Conditioning Trainer Description This Trainer is able to Study of the thermo dynamic Cycle in the domestic air-conditioners. The Liquid Freon Flows from the flow meter to the filter direr, then Crosses the Capillary tube where it undergoes the enthalpy Transformation. The Freon transforms into gas in the evaporator, thus subtracting heat to air. The hermetic compressor intakes the gas that sent to the condenser return liquid. Thermometric probes, thus determining the temperatures in the relevant test points, can display the transformation from liquid to gas and from gas to liquid. The Low and high pressure gauges give data for determining the cycle.   Features: Silk – Screen-printed mimic diagram reproducing the Freon and circuits, Warning Lamps showing the operating sections Transparent structure permitting the complete survey of all the parts Technical Characteristics: HP hermetic compressor Evaporator with capillary direct expansion Air Condenser Double filter drier with sight glass 2 pressure gauges (100) Digital thermometer Electrical board with supply, control and safety instruments Voltmeter and Ammeter Experimental Capabilities Experimenting on the refrigerating cycle applied to domestic air-conditioners Determining the thermal balance of air flowing through the evaporator and the Condenser Determining the co-efficient of the thermal transmission in the dehumidification Power Supply 220 V – 50 Hz (single-phase)   REFRIGERATION CYCLE DEMONSTRATOR 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. Experimental Capabilities - Demonstration of the Vapor Compression refrigeration of heat pump cycle with visual observation of the important processes - Investigate     GENERAL CYCLE REFRIGERATION TRAINER/TUTOR 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.     AIR CONDITIONING TRAINER [General Cycle Type] To study basic principals of air conditioning, a ducting fitted with various air conditioning components, air flow by axial flow fan, heaters, cooling coil & steam humidifier connection provided cooling circuits consists of a hermetic compressor air cooled condenser, thermostatic expansion valve & evaporator, measurements of various parameters of cooling cycle & heating cycle, anemometer to measure air velocity.     CRITICAL RADIUS OF INSULATING MATERIAL To find out critical radius of insulation, ratio of thermal conductivity and outside heat transfer co-efficient. The unit consists of four G. I. pipes provided with plaster of paris insulation on out side surface and heater inside, having separate input control. Input to heaters is measured by common voltmeter& ammeter.     AIR CONDITIONING TRAINER [Simulation Type] A duct fitted with cooling coil, heaters and steam humidifier, to simulate summe 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     AIRCONDITIONING TRAINER [Recirculation Type] 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.     AIRCONDITIONING TRAINER [Windwo Type] Demonstration 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.     ICE PLANT TRAINER [12 Hours Cycle] 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.     ICE PLANT TRAINER [4 Hours Cycle] 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.

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