WORKING AND LAYOUT
Working of geothermal plants
To harness the geothermal energy from geothermal areas, deep holes are drilled into the earth until a significant geothermal hot spot is found. It is very hard to build a geothermal power plant, so it need brilliant engineers. After discovering the hot spot we have to attach a pipe deep down inside the hole, which allows hot and high pressure steam to rise up to the Earthsurface. The power generation method is same as in other power plants, such as diesel power plant, nuclear power plant etc. This hot and high pressure steam is allowed to enter to the powerhouse situated at the Earthsurface.
The power house consists of a high-speed steam turbine and a generator which is coupled to the steam turbine. Nothing more!. A condenser may be provided to condense the low pressure steam coming out of the turbine. It is essential to pump cold water to the hot spot through a separate pipe to make sure continuous steam output. If too much cold water is pumped to the hot spot inside the Earth, it could cool the rocks too much, resulting the geothermal source inactive.
In simple, a geothermal power plant converts heat energy of the Earth to electricity by means of turbines, generators etc. In some geothermal areas, the geothermal water may not reaches the boiling point of water. In this situation, another fluid having lesser boiling points than water is incorporated with the steam-driven turbine system. When this fluid passes through the heat exchanger it causes the special fluid to flash to vapour which then drives the turbine.
The power house consists of a high-speed steam turbine and a generator which is coupled to the steam turbine. Nothing more!. A condenser may be provided to condense the low pressure steam coming out of the turbine. It is essential to pump cold water to the hot spot through a separate pipe to make sure continuous steam output. If too much cold water is pumped to the hot spot inside the Earth, it could cool the rocks too much, resulting the geothermal source inactive.
In simple, a geothermal power plant converts heat energy of the Earth to electricity by means of turbines, generators etc. In some geothermal areas, the geothermal water may not reaches the boiling point of water. In this situation, another fluid having lesser boiling points than water is incorporated with the steam-driven turbine system. When this fluid passes through the heat exchanger it causes the special fluid to flash to vapour which then drives the turbine.
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