Author Topic: Geothermal energy  (Read 413 times)

Offline utpalruet

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Geothermal energy
« on: August 12, 2014, 02:01:53 PM »
Geothermal energy is from thermal energy generated and stored in the Earth. Thermal energy is the energy that determines the temperature of matter. Earth's geothermal energy originates from the original formation of the planet (20%) and from radioactive decay of minerals (80%).The geothermal gradient, which is the difference in temperature between the core of the planet and its surface, drives a continuous conduction of thermal energy in the form of heat from the core to the surface. The adjective geothermal originates from the Greek roots geo, meaning earth, and thermos, meaning heat.
The heat that is used for geothermal energy can be from deep within the Earth, all the way down to Earth's core – 4,000 miles (6,400 km) down. At the core, temperatures may reach over 9,000 °F (5,000 °C). Heat conducts from the core to surrounding rock. Extremely high temperature and pressure cause some rock to melt, which is commonly known as magma. Magma convects upward since it is lighter than the solid rock. This magma then heats rock and water in the crust, sometimes up to 700 °F (371 °C).
From hot springs, geothermal energy has been used for bathing since Paleolithic times and for space heating since ancient Roman times, but it is now better known for electricity generation.

Utpal Saha
Lecturer, Dept of EEE
Faculty of Engineering
ID: 710001154

Offline mahmud_eee

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Re: Geothermal energy
« Reply #1 on: August 12, 2014, 03:06:46 PM »
more information may be added for improvement..thanks for sharing ...
Md. Mahmudur Rahman
Assistant Professor, EEE
FE, DIU

Offline Kazi Taufiqur Rahman

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    • Kazi Taufiqur Rahman
Re: Geothermal energy
« Reply #2 on: August 12, 2014, 08:01:17 PM »
Thanks for sharing.
Kazi Taufiqur Rahman
Senior Lecturer, EEE

Offline Tahmid

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Re: Geothermal energy
« Reply #3 on: September 28, 2016, 08:21:03 AM »
Thanks for the abstract about geothermal energy.
Best Regards

Tahmid Sami Rahman

Lecturer, Department of EEE
Faculty of Engineering
Room: 506, Main Campus
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Dhaka-1207
Phone: +8801726140559

Offline Morshed

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Re: Geothermal energy
« Reply #4 on: September 29, 2016, 02:24:29 PM »
Thanks
Regards,

Md. Golam Morshed
Lecturer, Dept. of EEE
Daffodil International University

Offline didarul alam

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Re: Geothermal energy
« Reply #5 on: April 24, 2017, 01:53:23 PM »
very informative post..
Regards,

Md. Didarul Alam
Lecturer,EEE,DIU