Saturday, October 3, 2009

Video - How a coal power station works?



Video - How a coal power station works?

Coal shipment from coal jetty transfered to the coal stockyard. There is a large machine called stacker reclaimer, arranged the coal into the storage piles. A series of conveyor belt transport the coal to the generating plant where it goes to the bunker hopper for temporary storage before it was introduced to bowl milling. Coal will be pulverized or; coal is grinded to a fine powder more less 70 microns prior to burning. The pulverized coal is mix with air and is feeded to the furnace combustion that is surrounding by boiler tube filled with purified water. The burning coal heats the purified water inside the boiler tube to the steam. The steam is transfered under high pressure and high speed throughout the pipe turbine. This pressure flow pushes the blade of turbine to spin. Turbine is connected to the generator where the spinning of the turbine will causes a shaft to turn inside generator and create electricity. The producing of the electricity that can be step up voltage through the station transformer and send from the station across transmission line. The steam from the turbine (exhausted) condense back to the purified water using cooling water from the forebay or seawater and pump back to the boiler where it's reheated back to continue the process again.

How a coal-fired power plant works
General coal-fired power plant view




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