Go Coal :D
hi by katelyn .D
Uses of coal
Why do we need coal?
The most significant uses of coal are in electricity generation, steel production, cement manufacturing and as a liquid fuel. Around 6.6 billion tonnes of hard coal were used worldwide last year and 1 billion tonnes of brown coal. Since 2000, global coal consumption has grown faster than any other fuel.
What coal is made of?
The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure. Coal is composed primarily of carbon along with variable quantities of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen.
The advantages of coal
- Coal is one of the most abundant sources of energy, more so than oil and natural gas.
- Coal is inexpensive when compared to other fossil fuels (or alternative energy sources)
- Coal is versatile enough to be used for recreational activities such as BBQ's or simply for home fires.
What is the energy of coal?
Coal contains energy that the plants absorbed from the sun millions of years ago. Burning coal releases this energy. It can then be used to heat water to generate steam, which is then used to drive a turbine to generate electricity
Coal powers alot
The Future Of Coal
Annual coal production is projected to remain around 1 billion tons into the next century. At a steady rate of use, our coal won't be depleted for 265 years. At a rate of growth of only two percent per year, however, this depletion occurs after 93 years. At a growth rate of 3 percent, it happens at 73 years.
But while physical supplies of coal may be substantial, and production costs are low, other factors may limit coal use. Pollution controls can remove a significant part of the sulfur and particulate emissions, if properly monitored and maintained. Even so, the environmental impacts of coal are enormous.
Coal has a long line of time left.
There is a finite supply. Coal contains the most CO2 per BTU, the largest contributor to global warming. Severe environmental, social and health and safety impacts of coalmining. High cost of transporting coal to centralized power plants.Apr 9, 2012