Biomass - energy from organic materials
Introduction
<ul><li>Wood was once our main fuel. We burned it to heat our homes and cook our food.  </li></ul><ul><li>Wood still provi...
<ul><li>&quot;Bioconversion&quot; uses plant and animal wastes to produce &quot;biofuels&quot; such as methanol, natural g...
How it works
For other biofuels, we may burn it to get the heat for our home, or burn it to get energy for a car engine, or for some ot...
More
<ul><li>Sugar cane is harvested and taken to a mill, where it is crushed to extract the juice. The juice is used to make s...
Advantages
<ul><li>It makes sense to use waste materials where we can.  </li></ul><ul><li>The fuel tends to be cheap. </li></ul><ul><...
Disadvantages
<ul><li>Collecting or growing the fuel in sufficient quantities can be difficult.  </li></ul><ul><li>We burn the biofuel, ...
Is it renewable?
<ul><li>Biomass  is  renewable, as we're going to carry on making waste products anyway.  </li></ul><ul><li>We can always ...
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Biomass

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PRESENTATION BY SOLAHUDDIN, IERIN AND NADIYY- 4 SIGMA MOZAC

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Biomass

  1. 1. Biomass - energy from organic materials
  2. 2. Introduction
  3. 3. <ul><li>Wood was once our main fuel. We burned it to heat our homes and cook our food. </li></ul><ul><li>Wood still provides a small percentage of the energy we use, but its importance as an energy source is dwindling. </li></ul><ul><li>Sugar cane is grown in some areas, and can be fermented to make alcohol, which can be burned to generate power. </li></ul><ul><li>Alternatively, the cane can be crushed and the pulp (called &quot;bagasse&quot;) can be burned, to make steam to drive turbines. </li></ul><ul><li>Other solid wastes, can be burned to provide heat, or used to make steam for a power station. </li></ul>
  4. 4. <ul><li>&quot;Bioconversion&quot; uses plant and animal wastes to produce &quot;biofuels&quot; such as methanol, natural gas, and oil. </li></ul><ul><li>We can use rubbish, animal manure, woodchips, seaweed, corn stalks and other wastes. </li></ul>
  5. 5. How it works
  6. 6. For other biofuels, we may burn it to get the heat for our home, or burn it to get energy for a car engine, or for some other purpose. <ul><li>For a biomass power station making electricity, it's pretty much like a fossil fuel power station: </li></ul>
  7. 7. More
  8. 8. <ul><li>Sugar cane is harvested and taken to a mill, where it is crushed to extract the juice. The juice is used to make sugar, whilst the left-over pulp, called &quot;bagasse&quot; can be burned in a power station. </li></ul><ul><li>The station usually provides power for the sugar mill, as well as selling electricity to the surrounding area. </li></ul><ul><li>biofuels will help us to reduce our reliance on fossil-fuel oil, and that this is a good thing. </li></ul><ul><li>it takes a huge amount of land to grow enough crops to make the amount of biofuels we'd need, so much so that it makes a big dent in the amount of land available for growing food. </li></ul>
  9. 9. Advantages
  10. 10. <ul><li>It makes sense to use waste materials where we can. </li></ul><ul><li>The fuel tends to be cheap. </li></ul><ul><li>Less demand on the fossil fuels. </li></ul>
  11. 11. Disadvantages
  12. 12. <ul><li>Collecting or growing the fuel in sufficient quantities can be difficult. </li></ul><ul><li>We burn the biofuel, so it makes greenhouse gases just like fossil fuels do. </li></ul><ul><li>Some waste materials are not available all year round. </li></ul>
  13. 13. Is it renewable?
  14. 14. <ul><li>Biomass is renewable, as we're going to carry on making waste products anyway. </li></ul><ul><li>We can always plant & grow more sugar cane and more trees, so those are renewable too. </li></ul>

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