Geothermal Energy Overview and Applications
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Questions and Answers

What does the word 'geyser' originate from?

  • An Icelandic verb meaning 'to gush' (correct)
  • An English word for natural hot springs
  • A Latin verb meaning 'to erupt'
  • A Greek term for 'boiling water'

    • Which of the following is NOT a component typically associated with geysers?

  • Magma
  • Fossils (correct)
  • Water
  • Steam

    • Which term describes the process that causes geysers to erupt?

  • Eruption (correct)
  • Evaporation
  • Sublimation
  • Condensation

    • What common characteristic can be found in areas suitable for geothermal power plant construction?

    <p>Presence of geysers</p> Signup and view all the answers

    What role does temperature play in the behavior of geysers?

    <p>It influences the steam pressure within the geothermal system</p> Signup and view all the answers

    Which of the following gases is typically associated with geothermal areas?

    <p>Hydrogen sulfide</p> Signup and view all the answers

    Which of these is the best definition of a geyser?

    <p>An intermittent hot spring that erupts with steam and hot water</p> Signup and view all the answers

    What environmental feature is essential for the presence of geysers?

    <p>Geothermal heat sources</p> Signup and view all the answers

    What is the correct status of the statement: 'Heat can be created and converted into other forms.'?

    <p>Correct idea</p> Signup and view all the answers

    What is the correct status of the statement: 'The country (Philippines) is largely dependent on non-renewable energy resources like fossil fuels.'?

    <p>Correct idea</p> Signup and view all the answers

    Evaluate the statement: 'Hydroelectric plants convert electrical energy to mechanical energy.' What is its status?

    <p>Incorrect idea</p> Signup and view all the answers

    Assess the statement: 'Increase in heat and pressure is experienced as one goes deeper.' What is its status?

    <p>Correct idea</p> Signup and view all the answers

    What is the validity of the statement: 'Large volume of water flowing from a source at great height produces large amount of electrical energy.'?

    <p>Correct idea</p> Signup and view all the answers

    Determine the status of the statement: 'Geothermal heat pump requires temperature range of 300 – 700 oF to make a building warm during winter.'

    <p>Incorrect idea</p> Signup and view all the answers

    What is the correct status of the statement: 'Among the types of hydropower plants, pumped storage facilities possess the most efficient process of generating electricity.'?

    <p>Correct idea</p> Signup and view all the answers

    What is the validity of the statement: 'Most power plants that harness renewable energy resources use turbines and generators.'?

    <p>Correct idea</p> Signup and view all the answers

    What is the primary function of dry steam plants in geothermal energy production?

    <p>They directly use hot steam to drive turbines.</p> Signup and view all the answers

    Which of the following statements about harnessing geothermal energy is accurate?

    <p>It can be converted into electricity and direct heating.</p> Signup and view all the answers

    How do dry steam plants operate?

    <p>By directly extracting steam to power turbines.</p> Signup and view all the answers

    Which of the following is NOT a way to harness geothermal energy?

    <p>Conducting steam directly from volcanic eruptions</p> Signup and view all the answers

    What characteristic distinguishes dry steam plants from other geothermal power plants?

    <p>They utilize hot steam without the need for water.</p> Signup and view all the answers

    Which process is essential for converting geothermal energy into electricity?

    <p>Mobilizing steam to turn turbines.</p> Signup and view all the answers

    In geothermal energy systems, what role does the generator play?

    <p>It converts mechanical energy into electrical energy.</p> Signup and view all the answers

    What is a common characteristic of geothermal power plants?

    <p>They can operate continuously regardless of weather.</p> Signup and view all the answers

    What is geothermal energy primarily a result of?

    <p>Radioactivity at the Earth's interior</p> Signup and view all the answers

    Which of the following is a type of energy conversion mentioned?

    <p>Electrical to thermal energy</p> Signup and view all the answers

    What is the primary concern regarding the use of energy resources?

    <p>Balancing current needs with the needs of future generations</p> Signup and view all the answers

    Which type of energy is derived from the random motion of particles?

    <p>Heat energy</p> Signup and view all the answers

    What is the first step in harnessing geothermal energy for electrical use?

    <p>Identifying geothermal sites for potential power plants</p> Signup and view all the answers

    Which statement best describes the nature of heat energy?

    <p>It is dynamic and transferable, resulting from particle motion.</p> Signup and view all the answers

    Why is the exploration of energy resources prioritized?

    <p>To satisfy global energy demands for production</p> Signup and view all the answers

    What is one of the main benefits of modern technologies in energy usage?

    <p>They make daily tasks easier for humans.</p> Signup and view all the answers

    What is hydropower primarily based on?

    <p>Mechanical energy from flowing water</p> Signup and view all the answers

    Which factor significantly affects hydropower production?

    <p>The volume of water and height of the source</p> Signup and view all the answers

    What type of hydropower facility uses a dam to create a large reservoir?

    <p>Impoundment facilities</p> Signup and view all the answers

    Which hydro plant type is more susceptible to natural water variability?

    <p>Run-of-river facilities</p> Signup and view all the answers

    What is a significant environmental concern related to large dam facilities?

    <p>Disruption of regional ecosystems</p> Signup and view all the answers

    Which greenhouse gas can be emitted during the construction of hydro plants?

    <p>Carbon dioxide</p> Signup and view all the answers

    How do hydro plants contribute to methane emissions?

    <p>From decaying vegetation in flooded areas</p> Signup and view all the answers

    What is the main function of pumped storage facilities?

    <p>To store energy by moving water between reservoirs</p> Signup and view all the answers

    Study Notes

    Geothermal Energy Overview

    • Geothermal energy is derived from the Earth's internal heat and can be transformed into usable electrical energy.
    • It is a renewable resource, meaning it can be replenished naturally in a short period.

    Harnessing Geothermal Energy

    • Geothermal power plants are established at suitable locations to convert geothermal energy into electricity.
    • The process involves extracting hot steam or water from the ground, which then powers turbines to generate electricity.

    Types of Geothermal Power Plants

    • Dry Steam Plants: Directly use steam from geothermal reservoirs to drive turbines.
    • The Great Geysir in Iceland is a notable example, illustrating the concept of geothermal heat.

    Site Requirements for Geothermal Power Plants

    • Sites must have heat sources, commonly found in volcanic or tectonically active areas.
    • Adequate water supply is crucial for cooling and turbine operation.

    Key Concepts in Geothermal Energy Production

    • Heat can be transformed and converted into various usable forms.
    • Pressure and heat increase with depth beneath the Earth's surface.
    • The presence of hot springs can indicate suitable sites for geothermal power plants.

    General Observations

    • Rapid shifts in temperature and pressure are characteristic of geothermal energy realities.
    • Areas identified for geothermal sites often exhibit geological features such as volcanic activity.

    Comparative Energy Resources

    • The efficiency of geothermal energy is favorable compared to other forms of renewable energy.
    • Geothermal power entails lower environmental impact compared to traditional hydropower, despite some construction-related emissions.

    Energy Transformation

    • Energy exists in renewable (geothermal, hydro) and non-renewable forms, with sustainability being a priority for future energy use.
    • Continuous exploration of energy resources is necessary to meet increasing global energy demands.

    Heat Properties

    • Heat is dynamic and transferable; it results from continuous motion of particles.
    • The geothermal heat is a byproduct of radioactive decay inside the Earth.
    • Impoundment Facilities: Utilize dams to create reservoirs for electricity generation through water flow.
    • Pumped Storage Facilities: Allow water to be moved between reservoirs to store energy.
    • Run-of-River Facilities: Rely on natural water flow for electricity production, leading to more intermittent energy generation.

    Environmental Considerations

    • While hydropower is renewable, it can disrupt local ecosystems and habitats.
    • Geothermal energy has less environmental disruption, positioning it as an advantageous choice for sustainable energy production.

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    Description

    Explore the fascinating world of geothermal energy, derived from the Earth's internal heat. This quiz covers types of geothermal power plants, site requirements for successful energy conversion, and key concepts in geothermal energy production. Test your understanding of this renewable resource and its potential applications.

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