Write the energy conversion in a steam engine and Wind turbine
Answers
Answer:
mechanical energy to electric energy
Explanation:
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Steam, odourless, invisible gas consisting of vaporized water. It is usually interspersed with minute droplets of water, which gives it a white, cloudy appearance. In nature, steam is produced by the heating of underground water by volcanic processes and is emitted from hot springs, geysers, fumaroles, and certain types of volcanoes. Steam also can be generated on a large scale by technological systems, as, for example, those employing fossil-fuel-burning boilers and nuclear reactors.
Steam power constitutes an important power source for industrial society. Water is heated to steam in power plants, and the pressurized steam drives turbines that produce electrical current. The thermal energy of steam is thus converted to mechanical energy, which in turn is converted into electricity. The steam used to drive turbogenerators furnishes most of the world’s electric power. Steam is also widely employed in such industrial processes as the manufacture of steel, aluminum, copper, and nickel; the production of chemicals; and the refining of petroleum. In the home, steam has long been used for cooking and heating.
The stages that occur during the transformation of liquid water to its vapour (steam) are shown in the figure, in which A–E depict a cylindrical vessel containing a fixed quantity of water subject to the constant pressure exerted by a weighted (W) movable piston. A′–E′ are corresponding points on a graph showing, for a range of pressures and volumes, whether a specific mass of water is entirely liquid, entirely vapour, or a mixture of the two phases. :
Medieval fortifications of the Cité, Carcassonne, France.
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