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1 Raw material for BLCP BLCP Power Station is bituminous coal imported from Australia and Indonesia. The coal is transported from ships to the berth located at the south-west the coal yard, The total storage capacity is 662,000 tons sufficient for 60-days continuous electricity generation.
2 From the coal yard, the coal is transported via conveyors to bunkers and coal pulverizers where it is ground to suitable size for inputting into boiler furnance in suspension in transport air. Combustion of coal provides heat which which is then transferred to demineralized water in the tubes surrounding the furnace.
3 Boiling water and steam are separated in the boiler drum located at the top of the boiler. The water is further heated in the furnace, whereas the steam enters superheat coil where the temperature is increased and the pressure be properly adjusted before entering a steam turbine.
4 The steam transfers energy to the trubine and turn the generator, which is connected to the turbine. (Figure 3 reveals the operation of BLCP Power Station). When the generator turns round, the magnetic field crossing the coils within the generator results in electrical power.
5 The power is transformed by a generator transformer so that the voltage will match the system of EGAT.
6 The steam passing through the steam turbine drops in temperature and pressure and will be condensed in the condenser. The condensed water is rerurned to the boiler again to produce more steam.
7 While heavy ash called 'bottom ahs' settle at the botom of the boiler furnace, fly ash will be carried with the flue gas through the boiler and at the outlet will be trapped by electrostatic precipitator. Since the coal has sulfur as an impurity, combustion leads to a reaction which produces sulphur dioxide(SO2). Therefore, a sea water flue gas desulfunization plant is provided to trap SO2 before it is emitted into the air. NOx will also be minimised by use of low NOx burners of advanced design using the latest technology.




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