JEMS INDUSTRIES

Chinchwad, Pune, Maharashtra

It is motorised unit consisting of SUN gear mounted on input shaft, two plane gears meshes with the annular gear. These planet gears are mounted on a common arm to which output shaft is fitted. Loading arrangement is provided for loading the system and to measure Holding Torque.

Specifications:

• A compact Epicyclic Gear Train coupled with D.C. Motor.
• Rope brake arrangement to measure Output torque and Holding torque.
• Control Panel comprising of - Digital Ammeter and Voltmeter. RPM Indicator. Speed Controller

Experiment :

1. To measure epicyclic gear ratio between input shaft & output shaft.
2. To measure epicyclic gear ratio between input shaft and holding drum.
3. To measure Input torque, Holding torque and Output torque.

Service Required :

• 230 V.A.C. stabilised power supply.

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 300kg/hour, 10bar saturated steam supply.

1. Steam turbine: The turbine is a single stage impulse turbine with two stainless steel nozzles. The blades are also made of stainless steel to ensure high reliability. The turbine is of vertical split case design to provide easy serviceability.
2. Separating and throttling calorimeter: Consists of well insulated separating and throttling chambers made of MS pipes with suitable piping, valves, thermometer and pressure gauges. A condenser is included to condense the sampled steam and measure its actual mass.
3. Condenser assembly: Consists of a shell and tube type condenser and a 3.0HP monoblock pump set (440Volts, 3 phase, 50Hz) to circulate the cooling water. An orificemeter with pressure gauges and thermometers are fixed in the cooling water pipeline to measure the flow rate and temperature rise. Suitable piping and valves are provided to connect the turbine exhaust to the condenser and atmosphere. The steam flow rate is determined by measuring the condensate.
4. Other accessories: Suitable 25mm piping (not exceeding 3.0m) and control valve to connect the turbine with the calorimeter and to the boiler. Necessary pressure gauge is provided to measure turbine steam inlet conditions. A digital tachometer is provided to monitor the turbine speed.
5. Loading Device: The steam turbine is coupled to a 3000 rpm, 1KW, 220 Volts, generator on a strong base plate. A panel board consisting of ammeter, voltmeter and a row of bulbs is provided.

With a steam flow rate of 300 kg/hour 10 kg/sq.cm saturated conditions, the turbine will produce Boiler Details:Steam Boiler of capacity 300 kg/hr., (made by Elite Boilers, Pune or equivalent) with working pressure of 15 kg/cm2 model STEAMPACK- 300 (f & a 30 C) LDO/HSD fired. As per ERECTION OF 300Kg/hour Boiler and Supply of accessories.

1. Suitable Water Tank (sintex tank)1000 ltrs
2. Suitable Fuel Tank (MS tank) - 100 ltrs
3. Suitable Chimney 1 No (4 Meters Long)
4. Suitable Water Softener 1 No.
5. Water Line from Softener to Tank, water tank to boiler
6. Fuel Line from Fuel Tank to Burner and back
7. Steam Line to Steam Turbine
8. Condensate Drain Line
9. Softener and water Pump

Other accessories required for the steam turbine test rig:1. A suitable sump tank of capacity at least 10, 000 liters is required for the condenser coolingwater supply. Existing lab sump if it is of sufficient capacity can be used for this purpose.Necessary GI piping to connect the condenser pump to the sump and the condenser and returntrenches are to be provided by the college.2. Necessary foundation for the turbine, condenser, and boiler.Optional: Cost of cooling tower (instead of the sump tank) Rs.55, 000(Rs. fifty five thousand only)

Feed Pump Motor, Blower Motor and oil Pump2) STEAM BOILER CONSTRUCTIONIt is designed on forced circulation Heat Exchange principle fabricated out of hightemperature resistant seamless tubes, once through spiral coil nest is arranged to give 3 clearpasses of flue gases forms combustion zone. It ensures for optimum rate of heat release andmaximum heat transfer and low stack temperature. It is ultimately placed in double shell onstudy steel frame for quick and easy installation.3) SHELL AND COIL ASSEMBLYInner & Outer shell, Aluminium foil in between two shells to act as heat retarder, Nestof once through spiral coil to give 3 clear pass and Top & Bottom refractory block.4) BURNER, BLOWER & OIL PUMP ASSEMBLYCentrifugal Blower coupled with motor, vertically downward position placed burnercomplete with nozzle, nozzle holder, diffuser plate, ignition electrodes, photocell, sight glass& solenoid valve. Gear oil pump coupled with motor, Oil filter and Pressure gauge.5) FEED WATER ASSEMBLYPositive displacement type piston pump coupled with motor, pulley, V-Belt, Pumpsafety valve & Non-return Valve.6) MOUNTINGS, FITTINGS & INSTRUMENTATIONMain steam stop valveSteam Auxiliary valveSafety ValveBlow down valveSteam trapNon return valveStrainerOil, water & steam pressure gauge with isolating valvesTemperature Indicator cum controllerFlue gas controllerSteam pressure switchAudio AlarmOil filerIgnition Transformer7) ELECTRICAL PANELIt is mounted on the front side of the boiler at a convenient height, is prewired andcomplete with starters, push buttons indicating lamps all duly labeled, fuses, O/L relays, contactors and sequence controller.8) ACCESSORIES

• Air blower
• Water pump (Feed Water)
• Fuel pump
• Pressure control : Through HP/LP cutout, Solenoids, pressure switches

9) INSULATONThe steam line connecting the Turbine will be well insulated.10) FINISHRed oxide primer and one coat of enamel paint11) BASEStrong Channel Base, Houses all parts of boiler12) SOFTENERWater softener suitable for softening raw water up to 200 PPM of CaCO3 complete withinter connection piping, valves, Filter, Resin, Pressure Gauge, Ejector & brine tank13) Fuel Tank: 100 liter capacity MS fuel tank14) Feed water tank: 1000 liter capacity sintex tank15) Piping: Water line, fuel line, steam line (blow down line and line to connect boiler withturbine, etc)16) Thermal lagging for steam pipes17) Flue gas arrangement - Chimney 4 m height chimney