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Transcript of Thermal Energy
Mater is made of particles. Particles are always in random motion, this means they have kinetic energy.
is all of the kinetic energy due to random motion of the particles that make up an object.
Thermal Energy in Water
There are many types of thermal energy. Geothermal energy specifically is very promising to assist us in the future.The reason that geothermal is expected to play an important role in the future is that we're getting better and better at doing this: we're now drilling geothermal wells with increasing efficiency, allowing more energy to be captured in each plant. Geothermal is also getting cheaper, as the technology improves. We are running out of natural recources for gas. Geothermal energy is the future for clean energy use.
Particles move faster in higher temperatures. Particles in an ice cube vibrate in fixed positions. Particles in a lake moves freely. Particles of water in steam moves rapidly due to the temperature. The faster the atoms or molecules move, the higher the temperature, and the more atoms or molecules that are in motion, the greater the quantity of heat they transfer.
The motion of thermal energy is usually not visible, but we can feel or see its effects. We use thermal energy to cook our food and heat our homes, and we use it to generate electricity. Thermal energy is not the same as heat. Heat is energy transferred between substances or systems due to a temperature difference between them. So it is correct to say that a system contains thermal energy, but not that it "contains" heat, since heat means energy that is transferred from one thing to another.
Geothermal Energy is energy that is created and stored in the earth, simply thermal energy inside the earth. Deep inside the Earth lies hot water and steam that can be used to heat our homes and businesses and generate electricity cleanly and efficiently. A serious environmental effect of the geothermal industry is arsenic pollution. If waste is released into rivers or lakes instead of being injected into the geothermal field, these pollutants can damage aquatic life and make the water unsafe for drinking or irrigation.
Thermal Energy and Temperature
These pictures are in order from least to greatest thermal energy. The temperature of the water affects the movement of the particles, therefore affecting the thermal energy.
Safety concerns of geothermal energy
Workers drill directly into the earth’s natural geothermal reservoirs, using the resulting hot water and steam to create electricity. Some geothermal systems use a brine or saltwater solution while others will use glycol. These solutions may pose hazards of their own to workers.