We all have seeing how the world have used so many types of energy to produce electricity, from the high wind to the ocean, from the ultra violet light of the sun to the most used resource that is coal. All have helped us keep this world that we live in powered and functioning. However today, my focus in on three specific electricity generation, which are coal-fired power plant, natural gas, and nuclear power plants. however, we all know that coal has being the source of electricity forever and we all depend on it on a global scale.

 according to worldcoal.org

 Coal plays a vital role in electricity generation worldwide. Coal-fired power plants currently fuel 41% of global electricity. In some countries, coal fuels a higher percentage of electricity.

Coal in Electricity Generation
South Africa 93%	Poland 87%	PR China 79%
Australia 78%	Kazakhstan 75%	India 68%
Israel 58%	Czech Rep 51%	Morocco 51%
Greece 54%	USA 45%	Germany 41%

this table provide an understanding of how much coal is used by many countries worlwide.

Application

How is Coal Converted to Electricity?

coal is found in part of the country in form of archaic rocks that are either blended with the earth or deep into certain warm environment. so they use by machine to separate and take big portion of the coal and send it to the place to prepare it to produce electricity. so the system is that, the coal is being crushed to powder and send it to a combustion chamber to burn at a very high temperature. for a visualization of how the system works, the image depicted below would help understand the process:

 when all the process are applied, the coal is now ready to produce electricity. it could generate up to 400 thousand volts. then this voltage is provided to us and businesses through copper wire and when it reaches us, it decimate to 100-250 volts to meet our needs.

Second, How Is Electricity Made from Natural Gas?

Natural gas works similar to coal. Natural gas can be found under layers and layers of the surface that we walk on. The process of extracting it is that from the ground, we pass it to a compressor and store it into reservoirs ready to be use. Normally, in a country like here, we mostly use it during the winter time to provide heat, and hot water. This image depicted below shows the process in a more visual way:

 

 

 Thirdly, nuclear power plants

In this modern day, nuclear power plants have being a resource every powerful country is ready to explore to produce electricity. Although people seem to feel somewhat anxious about it because of its ability to make destructive weapons to wipe all of us out if it falls into the wrong hands. However, it seems like it could answer a lot of the question that we have to help keep producing electricity to keep up with the population demand, as well as reducing pollution.

Application

The main source used to create nuclear power plant is uranium.  For the process, first a reactor vessel takes the uranium atoms and split them to create a nuclear energy that will transform into heat energy. Then, they use a pressurizer at 300celcius to keep water into its liquid state for the steps ahead. After different other processes, a steam generator is use to transform that water into steam. Then a turbine generator is used to transform the mechanical energy in electricity due to the electromagnetic field.

The image depicted below provides more details about the process:

So whether we are using coal, nuclear or natural gas plants, we are fortunate to have as many resources available to produce electricity and power the world. However, natural gas and coal are also have emitted tons of carbon dioxide onto the air that is affecting our environment, where nuclear power plants doesn’t, but the amount of energy used is almost equal to what is being produced.  So overall we depend on coal and natural gas for now, hoping to create a more efficient source of electricity in the future. Therefore, our greatest hope is that we are no longer in denial about the threats they cause to our environment.

 

 

http://www.worldcoal.org/coal/uses-of-coal/coal-electricity/

http://www.cpsenergy.com/services/natural_gas/natgas_generation.asp

https://www.edfenergy.com/energyfuture/generation-nuclear