LESSON-2 Flashcards
(13 cards)
What does geothermal energy derive from?
The center of Earth
Comes from the Greek words ‘geo’ (Earth) and ‘thermal’ (heat)
List the geothermal power plants in the Philippines and their total installed capacity
- Tiwi Geothermal Power Plant: 330 MWe
- Mak-Ban Geothermal Power Plant: 425.73 MWe
- Tongonan: 722.68 MWe
- Palinpinon: 192.5 MWe
- Bacon-Manito: 151.5 MWe
- Mindanao: 108.48 MWe
What are the two types of geothermal energy?
- Conventional Geothermal Energy
- Volcanic / Supercritical Geothermal Energy
How does Conventional Geothermal Energy work?
Utilizes steam from natural resources such as geysers or by drawing water from the hot, high-pressure depths of Earth.
Describe Volcanic / Supercritical Geothermal Energy.
Naturally occurring hot water or steam flows heated by magma and circulating through permeable rock.
How is geothermal energy generated?
- Geothermal Power Plants
- Geothermal Heat Pumps
Fill in the blank: Heat from deep inside the Earth is used to produce steam to generate _______.
[electricity]
What is the function of geothermal heat pumps?
Heat coming from close to the Earth’s surface to heat water or provide heat for buildings.
What is the first step in generating electricity in a geothermal power plant?
Wells are drilled deep into the earth to pump steam or hot water to the surface.
What happens when the water reaches the surface in a geothermal power plant?
The drop in pressure causes the water to turn into steam.
What role does the steam play in a geothermal power plant?
The steam spins a turbine, which is connected to a generator, that produces electricity.
What is the purpose of the cooling tower in a geothermal power plant?
To cool the steam which condenses it back to water.
What happens to the cooled water in a geothermal power plant?
The cooled water is pumped back into Earth to begin the process again.
