About this blog

Coal is a nonrenewable energy fossil fuel, it's a sedimentary rock that can be burned. Coal made ​​up of organic sediment , mainly the remains of plants that lived hundreds of millions of years ago, when the Earth was partly covered with swampy forests. For millions of years, a layer of dead plants at the bottom of the swamps was covered by layers of water and dirt, trapping the energy of the dead plants. The heat and pressure from the top layers helped the plant remains turn into what we today call coal

Sunday, May 8, 2011

INTRODUCTIONS

Coal is used extensively because it is easily combustible and produces substantial amounts of energy. Though our reliance on coal has declined because of the availability of other fuels such as petroleum, natural gas, nuclear, solar, and hydropower, coal still remains a prime source of energy.
Even though coal availability is plentiful, it is still non-renewable and depleting. It will eventually run out. This is true for other non-renewable resources like petroleum and natural gas as well. In comparison, alternate energy sources such as solar energy and hydro power are inexhaustible and renewable resources.
In fact, every plant need coal with different qualities depending on their needs and compatibility with their equipment and cost efficiency.
The quality of coal is primarily measured by how well it burns, how much heat it gives out in the process, and how much ash it leaves behind after wards. These characteristics depend on how much of the
coal is fuel and how much of it is non-combustible components like water and mineral impurities. As a first step following components are analyzed by measuring the change in weight of a sample heated and ultimately burnt to yield.
Therefore, the existence of coal analysis is a vital for both coal producers and coal users

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