Analysis of Distance Protection by V Cook

By V Cook

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One effective way to overcome some of the cost is to incorporate a heat 42 GENERATION Figure 2-19. Pumped storage power plant. Figure 2-20. Combustion turbine power plant. POWER PLANTS AND PRIME MOVERS 43 exchanger so the exhaust gases can be used to generate steam that will drive a secondary steam turbine. Many CTs are used as combined-cycle power plants. Combined-Cycle Power Plants (Combustion and Steam) The combined-cycle power plant consists of two means of generation: combustion turbine and steam turbine.

As with the pressurized water reactor, the reactor housing contains the fuel core and water supply flow paths. The reactor recirculation system consists of the pumps and pipes that circulate the water through the reactor. The water circulating through the reactor actually goes into the turbine itself and then condensed water goes back into the reactor. The steam separator in the reactor shell separates the water from the steam and allows the steam to pass to the steam generator. The separated water is returned to the reactor for recirculation.

The coal is burned while on the belt as the belt slowly traverses the bottom of the boiler. Ash falls through the chain conveyor belt and is collected below where it is sometimes sold as a useful by-product for other industries. In pulverized coal power plants, the coal is crushed into a fine powder and injected into the furnace where it is burned similar to a gas. Pulverized coal is mixed with air and ignited in the furnace. Combustion by-products include solid residue (ash) that is collected at the bottom of the furnace and gases that include fine ash, NO2, CO, and SO2, which are emitted into the atmosphere through the stack.

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