JEMS INDUSTRIES

Chinchwad, Pune, Maharashtra

Description: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.

1. Test rig consists of a Pelton wheel water Turbine, designed for laboratory experimental purposes and to conduct test in metric units. The specifications of the turbine are as follows:-Design Speed - 1000 RPM.Output Power - 1.0 KWThe turbine consists of a cast iron body with a large transparent acrylic window, a nozzle and spear arrangement, a rotor assembly of shaft, runner and a brake drum all mounted on a sturdy base frame. The pelton buckets and nozzle are made of gun metal and the spear made of brass for corrosion resistance. The input to the turbine is controlled by adjusting the spear position with a hand wheel. A rope brake arrangement with a spring balance is provided for loading the turbine. The transparent perspex sheet side casing is provided for visual observation of flow on the buckets. Water inlet pressure is measured by a pressure gauge.
2. Water to the turbine is provided by a centrifugal monoblock pump set of 5 HP capacity. The pump operates on 440Volts, 3 Phase, 50 Hz line.
3. Other standard accessories include a DOL starter, switch, flow control gate valve, suitable piping.
4. Flow measuring unit consists of a venturimeter with pressure taps connected to two pressure gauges mounted on a panel board.
5. The complete test rig is mounted on a storage tank of suitable capacity. The tank is provided with FRP lining for total rust protection

The Ice Plant Test rig works on simple vapour compression refrigeration cycle and uses R134a or R 404 A as a refrigerant. These are environment friendly. The system is fabricated such that students can observe and study ice formation process. 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.

Specifications subject to change without any notification.

List Of Experiments:

1. TO EVALUATE CAPACITY OF THE ICE PLANT.
2. TO CALCULATE C.O.P. OF THE SYSTEM.
3. TO PLOT SYSTEM PERFORMANCE ON P-H CHART

Rating conditions * : Ambient temperature= 35^o C, atmospheric pressure = 1.01 bar, suction pressure= 5 psig, discharge pressure= 180 psig, evaporation temperature=- 14^o C, discharge temperature=55^o C.

The test rig consists of suitable equipment for performing experiments to measure the steam turbine efficiency, steam quality, and flow rate and condenser effectiveness. The turbine is suited for operation with a 300kghour, 10bar saturated steam supply.