Vertical Flask Type demonstration model, on metal base.This type of engine is used in Diesel cars, Jeeps, Buses, Trucks, Tractors and Generating sets. This is an internal combustion type engine. The thermal energy which is released when the fuel is burned is converted into mechanical energy. In this type of engine air alone is drawn into the cylinder and is compressed in a ratio of 14:1 to 25:1. As a result of this height compression, air is heated to a temperature of 7000C to 9000C. Now a creation amount of diesel is injected into the cylinder. Because of the prevailing high temperature, the fuel ignites spontaneouslyThe four strokes involves are : Intake stroke, Compression stroke, Power stroke, Exhaust stroke.
Vertical flask type demonstration mode, on metal base.In a four stroke engine, to perform full cycle of operations (changing the contents of cylinder and effecting combustion) four strokes of piston are required. This type of engine is used in Motor bikers, Petrol driven cars and certain types of scooters
This is an internal combustion engine. The vaporized fuel is mixed with air in carburettor. This mixture’s sucked by engine (Intake stroke - 1st stroke) through inlet valve which opens. The descending piston draws fresh petrol and air mixture into the cylinder. This mixture is compressed (Compression strokes 2nd stroke). During compression the mixture gets heated and ignition burns the fuel converting into a large volume of gas which pushes the piston. while the valves are closed the piston is pushed to the bottom of the cylinder by the gases of combustion (Power Stroke 3rd stroke) The exhaust valve opens due to momentum gained by wheels piston is pushed upwards and burnt gases are expelled (Exhaust stroke - 4th stroke).
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Vertical flask type demonstration model, on metal base. In a two stroke engine, to perform full cycle of operations (changing the contents of cylinder and effecting combustion) two strokes of piston are required. This type of engine is mostly used in petrol driven scooters.It is an internal combustion engine. The thermal energy which is released when fuel is burned is converted into mechanical energy. Petrol is mixed with air in a device called carburettor to form a combustible mixture which is compressed in a cylinder and finally ignited by an electric spark produced between the electrodes of a sparking plug. The gases which are formed in the cylinder by the combustion of air petrol mixture, expand, and thrust the piston downward. Acting through the connecting rod, the piston imparts a rotary motion the crankshaft. The energy to remove spent gases from the cylinder is provided by the flywheel thus paving the way for injection of fresh air petrol mixture, so that a new cycle can begin
Experimental Training Board has been designed specifically to study the behavior of the Reactive Elements and Time Dependent Network Analysis. Practical experience on this board carries great educative value for Science and Engineering Students. Object: 01. To study Charging & Discharging of a Condenser. 02. To Calibrate D.C. meter for A.C. voltage measurements. 03. To construct the vector (phasor) diagram for series L-R circuit and to calculate the power factor and "Q" at 50 Hz. 04. To study series LCR resonance circuit and its "Q". 05. To study series L-C resonance circuit and from it to find out the true value of "L". 06. To study series C-R circuit. 07. To study different types of filters. 08. To study the parallel R-C resonance circuit. 09. To study the parallel L-C resonance circuit and to find its "Q". 10. To verify circuit laws. 11. To find out the impedance and reactance of LCR reactive elements and to plot their reactance curves. 12. To plot "LISSAGOUS" figures. Features: The board consists of the following built-in parts: 01. Mains Transformer having secondary tappings of 10V, 20V, 30V, 40V, 50VA.C. at 500mA. 02. D.C. Voltmeter, 65mm rectangular dial with switch selectable ranges of 10V, 20V, 30V, 40V and 50V. 03. Four Rectifier diodes. 04. SPDT switch. 05. Potentiometer and adequate no. of other electronic components. 06. Mains ON/OFF switch, Fuse and Jewel light. * The unit is operative on 230V ±10% at 50Hz A.C. Mains. * Adequate no. of patch cords stackable from rear both ends 4mm spring loaded plug length ½ metre. * Good quality, reliable terminal/sockets are provided at appropriate places on panel for connections & observation of waveforms. * Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book References.
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