Thermal energy explain | thermal power plant pros and cons

Thermal energy explain | thermal power plant pros and cons
Thermal power plant

Thermal energy explanation and thermal power plant's pros and cons: The expression "geothermal energy" literally means that it is the heat energy of the Earth ("geo" is the earth, "thermal" is heat or temperature).

The chief source of this energy is a constant flow of heat from red-hot bowels directed to the surface of the Earth.

The earth's crust receives heat because of friction of the core, the radioactive decay of elements (like thorium and uranium), and chemical reactions.

The time constants of these processes are so great relative to the time of the Earth’s existence that it is impossible to test whether its temperature is increasing or decreasing.

Thermal energy reserves are vast. Several countries  (Hungary, Iceland, Italy, Mexico, New Zealand, Russia, the USA, Japan) use geothermal energy for heat supply and electricity generation. Thus, Iceland provides 26.5% of electricity via geothermal technology.

In 2004, in the world, the total capacity of geothermal power plants was about 9 million kW, and geothermal heating systems - about 20 million kW (thermal).

According to forecasts, the power of geothermal power plants can be about 20 million kW and electricity generation 120 billion kW per hour.



Thermal energy pros and cons



Low-power thermal power plants are widely used in various fields to produce thermal energy. For example, they can supply electricity to schools and pools, clinics, and sports complexes.

They can be used to create normal working conditions in temporary huts and wagons during construction, in other areas of the national economy.

These power plants have a lot of positive and very few negative impacts.

Mini thermal power plants comprise several devices and their work is fully automated.

Also, TPP can operate on any fuel, which allows you to use it in any condition.

The major advantage of this technique is that it does not depend on rising prices for heat and electric carriers and it allows you to own independent mini thermal power plants. This is an opportunity to save money allocated for this by almost 100%.



TPP advantages


1- There is a relatively cheap price of the heat resource used during the operation of thermal power plants, in comparison with the price categories of a similar resource used at nuclear power plants.


2- The construction of thermal power plants, and bringing the facility to a state of active operation, involves less fundraising.

3- TPP can be geographically located at any geographical point. The organization of the work of a station of this type will not require linking the location of the plant in the immediate vicinity with certain natural resources. Fuel can be delivered to the station from anywhere in the world by road or rail.

4- The relatively small scale of TPPs makes it possible to install them in countries where land is a valuable resource because of its small territory; the percentage of land that falls into the exclusion and withdrawal zone from agricultural needs is significantly reduced.

5- The cost of fuel produced by thermal power plants to produce thermal energy, compared with similar diesel, will be cheaper.

6- The generated energy does not depend on seasonal fluctuations in power, which is typical of hydroelectric power plants.

7- The Maintenance and operation of TPPs are very simple.

8- Experts are masters in the technological process of building TPPs, which makes it possible to quickly build it, which significantly saves time and resources.

9- At the end of the service life of TPPs, it is easy to recycle it. Water supply and heat supply systems are capable of retaining their quality and technological characteristics for a lengthy period after their service life; they can function further after replacing turbines and boilers.

10- Thermal power plants release water and steam, which we use to organize the heating process or in other technological tasks.

11- Thermal power plants are producers of about 80% of all the country's electricity.



Disadvantages


1- Violation of the ecological balance and atmospheric pollution because of the emission of smoke and soot, sulfur, and nitrogen compounds in enormous quantities. In addition, the creation and transmission of electricity lead to electromagnetic pollution.

2- To operate thermal power plants, we need enormous quantities of coal, the creation of which violates the natural relief.

3- Violation of the thermal balance of reservoirs, which occurs in dumping TPP cooling water, which leads to an increase in temperature.

4- TPP releases some substances belonging to the group of radioactive substances, which are harmful to the atmosphere.

5- During the operation of thermal power plants, those natural resources are used whose natural renewal is impossible, therefore the amount of these resources is gradually decreasing.

6- The presence of relatively low efficiency.

7- Thermal power plants are little to cope with the need for the daily schedule of electric load.

8- The operation of thermal power plants to produce thermal energy entails higher costs for their maintenance compared to hydroelectric power plants.

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