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this presentation deals with the types, formation, depletion, conservation of coal. it also includes the various advantages and disadvantages of it. other sources of energy are also include.

Published in: Education, Technology, Business


  1. 1. • • • • • • • • • • Fire Muscle power from animals Wind & water usage Steam engines powered by wood fires Steam engines powered by coal Now we use oil more because it is easier to ship, store & burn. Oil use peaked in 1979, so did prices thanks to Arab oil embargo & Iranian revolution. 1980’s began pursuing renewable energies but then oil prices fell and we went back to oil. In 2000, OPEC decreased production and prices went up to $30 per barrel Now oil costs $90-$100 per barrel
  2. 2. • Biomass energy- It comes from plants and is a rich source of carbon and hydrogen. • Wind power- Advanced aerodynamics research has developed wind turbines that can produce electricity at a lower cost than power from polluting coal plants. • Geothermal energy- It taps into the heat under the earth's crust to boil water. The hot water is then used to drive electric turbines and heat buildings. • Hydroelectric power- It uses the force of moving water to produce electricity.
  3. 3. • Coal- It is the largest source of fuel for electricity production, and also the largest source of environmental harm. • Oil- It is used primarily for transportation fuels, but also for power production, heat and as a feedstock for chemicals. • Natural gas- It is a relatively clean burning fossil fuel, used mostly for space and water heating in buildings and running industrial processes. • Nuclear power- It harnesses the heat of radioactive materials to produce steam for power generation. • Solar energy- It is the power from the sun. It is inexhaustible.
  4. 4. A Conventional Source of energy is a natural resource which cannot be produced, grown, generated, or used on a scale which can sustain its consumption rate, once depleted there is no more available for future needs. Also considered non-renewable are resources that are consumed much faster than nature can create them. Fossil fuels (such as coal, petroleum, and natural gas), firewood, nuclear power(uranium) and certain aquifers are examples.
  5. 5. 1. 2. 3. Coal is used to run locomotive engines It is used for heating. In factories, coal is often used to run machines for manufacturing electricity 4. Coal is also used for running other engines 5. Steel Industry is the second largest user of Coal 6. Coal is used as an energy source in the cement industry. Large amounts of energy are required to produce cement 7. Paper Industry and Aluminum Industry require large amounts of Fuel and Energy. Coal being the cheapest energy resource forms an essential input to these industries 8. Several chemical products can be produced from the byproducts of coal.
  6. 6. • Coal can be found in lots of places in the world. • Coal can be easily transported to the power stations. • Coal is a very cheap as compared to other energy sources. • Electricity produced from coal is reliable . • Coal can be safely stored. • It can create energy in time of emergency . • Renewable energy like solar energy and wind energy depend on weather, whereas coal does not depends on it.
  7. 7. • We have to create mines which can be dangerous. • Transporting coal by lorry and train from the mine to the power station causes pollution. • Burning coal produces gases like sulphur dioxide which lead to acid rain. • Burning coal releases the most greenhouse gases which may add to global warming. • Coal is a non-renewable source and will run out in about 200 years. • Coal miners can have many dangerous diseases like black lung disease or pneumoconiosis and also emphysema if they breathe in too much of the coal dust.
  8. 8. Coal mine accident kills 9 in north China April 24, 2012 Nine miners were killed and 16 others injured in a coal mine accident in north China's Inner Mongolia autonomous region as the rescue wrapped up late Monday, officials said. Rescuers found the bodies of five missing miners at Xingya Coal Mine at Urad front banner, Bayannur city after an eight-hour search, said a spokesman of the local government. Four people were killed on the spot when a blast rocked the mine at about 3:20 a.m. Monday. The 16 miners, including four severely injured, are being treated at a local hospital, the spokesman said. The mine, with maximum output of 300,000 tons of coal a year, is licensed. The cause of the accident is being investigated, he added. China's mining sector saw 185 accidents in the first quarter of the year, that led to the deaths of 289 people, the State Administration of Work Safety said last Friday. Altogether 1,973 miners were killed in colliery accidents last year. Poor safety regulations and a lack of safety awareness are usually blamed for the frequent occurrence of colliery accidents. Inner Mongolia holds China's largest coal reserves. It surpassed neighboring Shanxi Province to become the largest coal producing region in 2010. Its coal output reached 908 million tonnes in the first 11 months last year, rising 26.6 percent from a year earlier, according to latest available statistics.
  9. 9. • Many industries contribute to the depletion of coal because they use large amounts to power their machines. These industries include the car industry, steel industry and transportation industry. • Individual citizens also contribute to the depletion of coal. The use of electricity, driving engines and heating your home all eat up coal.
  10. 10. • Over-consumption/excessive or unnecessary use of resources • Non-equitable distribution of resources • Overpopulation... • Slash and burn agricultural practices, currently occurring in many developing countries • Technological and industrial development • Erosion • Habitat degradation leads to the loss of Biodiversity (i.e. species and ecosystems). • Irrigation • Mining for oil and minerals • Forestry Forest Reserves within a particular country
  11. 11. World Coal Extraction Projection
  13. 13. SOLAR ENERGY - Solar energy is the technology used to harness the sun's energy and make it useable. Today, the technology produces less than one tenth of one percent of global energy demand. The most common way to harness solar energy is to use solar panels. HYDRO ENERGY - The production of energy through the use of the gravitational force of falling or flowing water is called hydro energy. It is the most widely used form of renewable energy. WIND ENERGY - Wind power is the conversion of wind energy into a useful form of energy, such as using wind turbines to make electricity, windmills for mechanical power, wind pumps for water pumping or drainage, or sails to propel ships.