Hello, our names are Whitney and Flora. We are the guardians of nature and we are here to tell you how coal can affect the air but first we need to explain how coal is made.
The first process in creating coal is heating up the coal.
The second process is turning water into steam.
Before the coal is burned, it is pulverized to the fineness of talcum powder. It is then mixed with hot air and blown into the firebox of the boiler. Burning in suspension, the coal/air mixture provides the most complete combustion and maximum heat possible.
The last step to this process is letting the steam turn back into watrer.
Highly purified water, pumped through pipes inside the boiler, is turned into steam by the heat. The steam reaches temperatures of up to 1,000 degrees Fahrenheit and pressures up to 3,500 pounds per square inch, and is piped to the turbine.
The enormous pressure of the steam pushing against a series of giant blades turns the turbine shaft. The turbine shaft is connected to the shaft of the generator, where magnets spin within wire coils to produce electricity.
The third step in this process is letting the steam turn the turbine.
After doing its work in the turbine, the steam is drawn into a large chamber in the basement of the power plant. In this important step, millions of gallons of cool water from a nearby source (such as a river or lake) are pumped through a network of tubes running through the condenser. The cool water in the tubes converts the steam back into water that can be used over and over again in the plant. The cooling water is returned to its source without any contamination, and the steam water is returned to the boiler to repeat the cycle.