ppt-Q3-M3-Week-3-4-geothermal-energy.pptx

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1. Quarter 3, Week 3 & 4- Module 3 (Geothermal Energy)

2. Simple Recall: What are the advantages and disadvantages of volcanic eruptions?

3. What is Geothermal Energy? Geothermal energy is a renewable energy source because heat is continuously produced inside the earth. People use geothermal heat for bathing, to heat buildings, and to generate electricity. The slow decay of radioactive particles in the earth's core, a process that happens in all rocks, produces geothermal energy.

4. The term geothermal energy is easy to remember if you will break it down! The Greek word geo refers to the Earth, and thermal means heat, so geothermal energy is energy from Earth’s heat. This energy is then used to power generators in the production of electricity.

5. How do we produce electricity from Geothermal Energy? A geothermal power plant generates electricity from geothermal energy (Earth’s heat source). The main components of this power plants include: TURBINE composed of wheels which is driven by a water or a gas, GENERATOR- type of machine made up of coils of wire to produce electricity, and TRANSFORMER electrical device used to transfer electrical charges. Here are the basic steps on how this geothermal power plant generates electricity: 1. Pumping the hot water from geothermal resource. 2. How water will travel through pipelines and reaching a particular tank where it turns into steam (water in a gas form). 3 . The steam supplies the turbine which causes to rotate in a continuous process. 4 . A turbine is connected to a generator which electricity is being produced. 5 . From the generator, electrical energy will travel into a transformer which is responsible to transport to the different power lines. 6 . The excess steam pass through a cooling station where it condenses (gas to liquid). 7. The cold water is being pumped back again to the geothermal source to start the process again.

6. How a Geothermal Power Plants work