The electrostatic precipitators ESP are extensively used in the thermal power plant or steam power plant for removal of fly ash from the electric utility boiler emissions. The use of electrostatic precipitators is growing rapidly because of the new strict air code and environmental laws. An electrostatic precipitators can be designed to operate at any desired efficiency for use as primary collector or a supplementary unit to cyclone collector.
First the pulverized coal is burnt into the furnace of steam boiler. High pressure steam is produced in the boiler. This steam is then passed through the super heater, where it further heated up.
This supper heated steam is then entered into a turbine at high speed. In turbine this steam force rotates the turbine blades that means here in the turbine the stored potential energy of the high pressured steam is converted into mechanical energy. Line Diagram of Power Plant After rotating the turbine blades, the steam has lost its high pressure, passes out of turbine blades and enters into a condenser.
In the condenser the cold water is circulated with help of pump which condenses the low pressure wet steam. This condensed water is then further supplied to low pressure water heater where the low pressure steam increases the temperature of this feed water, it is then again heated in a high pressure heater where the high pressure of steam is used for heating.
The turbine in thermal power station acts as a prime mover of the alternator. The working fluid is water and steam. This is called feed water and steam cycle. In a steam boiler, the water is heated up by burning the fuel in the air in the furnace, and the function of the boiler is to give dry superheated steam at the required temperature.
The steam so produced is used in driving the steam Turbines. This turbine is coupled to synchronous generator usually three-phase synchronous alternatorwhich generates electrical energy.
The exhaust steam from the turbine is allowed to condense into water in steam condenser of turbinewhich creates suction at very low pressure and allows the expansion of the steam in the turbine to very low pressure. The principal advantages of the condensing operation are the increased amount of energy extracted per kg of steam and thereby increasing efficiency, and the condensate which is fed into the boiler again reduces the amount of fresh feed water.
The condensate along with some fresh makeup feed water is again fed into the boiler by a pump called the boiler feed pump. In the condenser, the steam is condensed by cooling water. Cooling water recycles through the cooling tower.
This constitutes a cooling water circuit. The ambient air is allowed to enter the boiler after dust filtration.
Also, the flue gas comes out of the boiler and gets exhausted into the atmosphere through stacks.
These constitute air and flue gas circuit. The flow of air and also the static pressure inside the steam boiler called draught is maintained by two fans called Forced Draught FD fan and Induced Draught ID fan.Use of Electrostatic Precipitators (ESP) in Thermal Power Plants Use of Electrostatic Precipitators: The electrostatic precipitators (ESP) are extensively used in the thermal power plant or steam power plant for removal of fly ash from the electric utility boiler emissions.
A thermal power plant is a power plant where steam is used to drive a steam turbine. This turbine is connected to an electrical generator.
This turbine is connected to an electrical generator. After this, the water is condensed, and may be used again. Nov 02, · Find Thermal Power Plant Latest News, Videos & Pictures on Thermal Power Plant and see latest updates, news, information from barnweddingvt.com Explore more on Thermal Power Plant.
Thermal power generation plant or thermal power station is the most conventional source of electric power. Thermal power plant is also referred as coal thermal power plant and steam turbine power plant/5(11).
Diesel Power Plant Figure shows the arrangements of the engine and its auxiliaries in a diesel power plant. The major components of the plant are: a) Engine Engine is the heart of a diesel power plant. Engine is directly connected through a gear box to the generator.
Generally two-stroke engines are used for power generation. The energy of a thermal power station not utilized in power production must leave the plant in the form of heat to the environment.
This waste heat can go through a condenser and be disposed of with cooling water or in cooling towers.