Video 2 Pembelajaran EBT (Energi Geothermal )

Summary

This video introduces geothermal energy as a promising renewable resource, focusing on its potential in Indonesia, which sits on the 'Ring of Fire' and is rich in geothermal activity. The lecture explains the basics of geothermal energy and explores three types of geothermal power plants: dry steam, flash steam, and binary cycle. It highlights the importance of understanding and utilizing this energy source to contribute to sustainable development. Students are encouraged to engage in further learning and discussions, leveraging platforms like e-learning and YouTube to explore geothermal energy's role in Indonesia's future.

Takeaways

• 😀 Geothermal energy is derived from the heat contained within the Earth, specifically from hot water, steam, rocks, and gases.
• 😀 Indonesia is located along the 'Ring of Fire,' making it rich in geothermal energy potential due to tectonic activity.
• 😀 Geothermal energy is an important alternative energy source and is defined by Indonesian law as heat energy stored within the Earth’s geothermal system.
• 😀 The Earth's core, with temperatures reaching up to 4000°C, generates the heat that causes tectonic activities, including earthquakes and volcanic eruptions.
• 😀 There are three main types of geothermal power plants: Dry Steam, Flash Steam, and Binary Cycle.
• 😀 Dry Steam Power Plants direct high-temperature steam straight to turbines to generate electricity, with cooled steam reinjected into the reservoir.
• 😀 Flash Steam Power Plants use water that is hot but not hot enough for dry steam. The pressure is reduced, causing the water to flash into steam, which drives turbines.
• 😀 Binary Cycle Power Plants use a heat exchanger to transfer geothermal heat to a secondary fluid, which vaporizes to turn turbines without direct contact with geothermal fluid.
• 😀 Geothermal energy in Indonesia is abundant and can be harnessed thanks to the country's geological features from Aceh to Papua.
• 😀 Continued learning and exploration of geothermal energy are essential, and resources like the Ministry of Energy and Mineral Resources' YouTube channel can provide further insight and support for renewable energy development.

Q & A

What is geothermal energy?

Geothermal energy is the heat energy that comes from the Earth's core, originating from the high temperatures and pressure found there. It can be found in hot water, steam, rocks, and gases beneath the Earth's surface.

How is geothermal energy defined in Indonesian law?

According to Law No. 27 of 2003 on Geothermal Energy, geothermal energy is defined as the source of heat contained in hot water, steam, rocks, and other gases that are inherently interconnected in a geothermal system.

What is the source of geothermal energy?

Geothermal energy comes from the Earth's interior, where extremely high temperatures (up to 4000°C) and pressure cause various tectonic activities, including earthquakes and volcanic eruptions, which can also lead to geothermal energy production.

Why is Indonesia a key player in geothermal energy development?

Indonesia is known as the 'Ring of Fire' due to its location in the Pacific, where three major tectonic plates meet. This makes Indonesia a hotspot for geothermal energy due to the frequent volcanic and tectonic activity.

What are the main types of geothermal power plants?

There are three main types of geothermal power plants: Dry Steam Power Plants, Flash Steam Power Plants, and Binary Cycle Power Plants.

What is the difference between Dry Steam Power Plants and Flash Steam Power Plants?

Dry Steam Power Plants use steam directly from geothermal wells to drive turbines, while Flash Steam Power Plants use hot water at temperatures above 175°C, which is depressurized to form steam and drive turbines.

What is the principle behind Binary Cycle Power Plants?

Binary Cycle Power Plants use a heat exchanger to transfer heat from the geothermal fluid to another liquid with a lower boiling point, which then vaporizes and drives a turbine to generate electricity. The geothermal fluid does not directly touch the turbine.

What role does the 'Ring of Fire' play in geothermal energy production?

The 'Ring of Fire' refers to a region around the Pacific Ocean where multiple tectonic plates converge. This zone is rich in volcanic and tectonic activity, which provides the necessary conditions for geothermal energy production.

How does geothermal energy contribute to sustainable development in Indonesia?

Geothermal energy offers a renewable, clean, and sustainable energy source that can help reduce dependency on fossil fuels, lower greenhouse gas emissions, and support Indonesia's energy security.

What are the learning resources available for studying geothermal energy?

One of the learning resources for studying geothermal energy is the YouTube channel of the Ministry of Energy and Mineral Resources (ESDM), which offers educational content on renewable energy development, including geothermal energy.