As heat is applied to the gas in one cylinder, the gas expands and pressure builds. This forces the piston downwards, performing work. The two pistons are linked so as the hot piston moves down, the cold piston moves up by an equal distance. This forces the cooler gas to exchange with the hot gas. The flow passes through the regenerator, where heat is
turbine via interceptor valves and control valves and after expanding enters the L.P. turbine stage via 2 numbers of cross over pipes. In the L.P. stage the steam expands in axially opposite direction to counteract the trust and enters the condenser placed directly below the L.P. turbine. The cooling water flowing throughout the condenser tubes condenses the steam and the condensate collected in the hot well of the condenser. The condensate collected is pumped by means of 3*50% duty condensate pumps through L.P. heaters to deaerator from where the boiler feed pump delivers the water to boiler through H.P. heaters thus forming a closed
Internal Combustion Engines. External combustion engine is one in which the products of combustion of air and fuel transfer heat to a second fluid, which then becomes the functional fluid for producing power. Steam engine is an example of E C Engine. The product output of combustion of air and fuel becomes precisely the working fluid in Internal Combustion Engine. Diesel engine, jet engine, Petrol engines, the open cycle gas turbine, gas engine are the examples of I C Engines.
A heat engine is a machine, which converts heat energy into mechanical energy. The combustion of fuel such as coal, petrol, diesel generates heat. This heat is supplied to a working substance at high temperature. By the expansion of this substance in suitable machines, heat energy is converted into useful work. Heat engines can be further divided into two types: (i) External combustion and (ii) Internal combustion.
Turbine Figure 1 This type of turbine is mainly used to run the electric generator for the electric power production. Air at atmospheric pressure P1 and temperature T1 enters the compressor where it is compressed isentropically. During compression process, pressure and temp increased to P2 and T2. This compressed air will then enter the combustion chamber where it helps in burning the fuel. Due to burning of fuel, it is mixed with gases produced due to burning and attains a very high temp T3.
It's common to have a fan attached to the generator to help cool the system. Regulator- The regulator controls the generator's output according to the needs of the electrical system. Battery- The battery stores electrical energy for starting the engine and the operating electrical units when the output produced by the generator is not sufficient. It principle is to convert chemical energy into electrical energy. Batteries are built in a series of cells, each producing approximately 2 volts.
In this assignment I will research one part of a gas turbine engine, I have chosen to describe the combustion chamber. A combustion chamber is a specific part of an engine where fuel is burned. The combustion engine changes heat energy into kinetic energy. There are two types of combustion engines, one which is internal and the other is external. In an internal combustion engine, the fuel inside it is burned in the air at the top of its pistons.
A furnace which is used to burn the fuel to produce the heat required to generate steam, 2. Closed water system consisting of fresh water, 3. Feed water system to keep the quantity of water in the closed system constant, 4. Sea water cooling system, 5. An Exhaust pipe for the burnt hot gases and smoke to exit and 6.
By utilizing the kinetic energy of steam flow, the turbine could achieve a higher efficiency. As a result, the steam turbine has supplanted the reciprocating engine as a prime mover in large electricity-generating plants and is also used as a means of jet propulsion. The action of the steam turbine is based on the thermodynamic principle that when a vapor is allowed to expand, its temperature drops. In turn, its internal energy is decreased. This reduction in internal energy is transformed into mechanical energy in the form of an acceleration of the particles of vapor.
In the beta-configuration, a displacer and a power piston contained within the same cylinder. The cylinder moves working fluid between the cold space and the hot space of the displacer through the heater, regenerator, and cooler. The power piston placed at the cold space of the cylinder, expands the working fluid when the working fluid is in the hot space and compresses the working fluid when the working fluid is moved into the cold