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Drawing steam from the Mindanao Geothermal Production Field, [3] the power station is situated near the foot of Mount Apo and has a power output of 106 MW. It is currently part of the Mindanao Grid that supplies electricity to Kidapawan and Davao Region. Impounds: Mount Apo. Turbines: Dry Steam Power Plant 54.24 megawatts
Dry steam power directly uses geothermal steam of 150 °C or greater to turn turbines. [3] As the turbine rotates it powers a generator that produces electricity and adds to the power field. [26] Then, the steam is emitted to a condenser, where it turns back into a liquid, which then cools the water. [27]
The efficiency of a conventional steam–electric power plant, defined as energy produced by the plant divided by the heating value of the fuel consumed by it, is typically 33 to 48%, limited as all heat engines are by the laws of thermodynamics (See: Carnot cycle). The rest of the energy must leave the plant in the form of heat.
A thermal power station, also known as a thermal power plant, is a type of power station in which the heat energy generated from various fuel sources (e.g., coal, natural gas, nuclear fuel, etc.) is converted to electrical energy. [1]
A simplified diagram of a coal-fired thermal power station. The superheater is the element 19. In many applications, a turbine will make more efficient use of steam energy than a reciprocating engine. However, saturated ("wet") steam at boiling point may contain, or condense into, liquid water droplets, which can cause damage to turbine blades.
The steam turbine operates on basic principles of thermodynamics using the part 3-4 of the Rankine cycle shown in the adjoining diagram. Superheated steam (or dry saturated steam, depending on application) leaves the boiler at high temperature and high pressure. At entry to the turbine, the steam gains kinetic energy by passing through a nozzle ...
The actual vapor power cycle differs from the ideal Rankine cycle because of irreversibilities in the inherent components caused by fluid friction and heat loss to the surroundings; fluid friction causes pressure drops in the boiler, the condenser, and the piping between the components, and as a result the steam leaves the boiler at a lower ...
The water, held under high pressure to keep it from boiling, produces steam by transferring heat to a secondary source of water. The steam is used to generate electricity. Cooling water from the river condenses the steam back into water. The river water is either discharged directly back to the river or cooled in the towers and reused in the plant.