LESSON 8_ ENERGY RESOURCES

Question 1

HOW IS GEOTHERMAL ENERGY TAPPED AS A SOURCE OF ENERGY?

Answer 1

The cracks and fissures under volcanoes create geothermal energy

Question 2

What do you call the water pockets affected and heated by the hot magma

Answer 2

Geothermal reservoir

Question 3

In producing electricity using Geothermal
Power Plants, there are three aspects that needs to be considered.

Answer 3

1. Heat from inside the Earth
2. Water or Binary fluid
3. Path for the fluid to travel from Geothermal reservoir to surace (through drilling)

Question 4

3 Types of Geothermal powerplants

Answer 4

1. Dry steam power plant
2. Flash power plant
3. Binary power plant

Question 5

3 types of geotheral powerplants

• The oldest of the three. This is the type of power plant in areas where the temperature in the reservoir is very high that water is turned to steam.

Answer 5

Dry steam power plant

Question 6

3 types of geotheral powerplants

• Uses water of at least 200oC.
• Hot water from the reservoir rises to the surface and is “flashed” or turned into steam because of the rapid drop in pressure.
• This is the most common type of geothermal power plant.

Answer 6

Flash power plant

Question 7

• Uses binary fluid.
• Binary fluids are fluids that are of lower boiling point than water.
• Are used because the water’s temperature is less than 200oC and is not enough to vaporize the water as it travels to the surface.
• But since it still carries geothermal energy, the heat from the water is transferred to the binary fluid which transforms it to vapor through a heat exchanger.

Answer 7

Binary power plant