ALTERNATIVE ENERGY RESOURCES <ul><li>PRESENTED BY </li></ul><ul><li>SAMPATH.N </li></ul><ul><li>SANJAI.R </li></ul><ul><li...
ABSTRACT <ul><li>Using more than one form of energy to meet needs is an important way to ensure long-term energy needs wil...
<ul><li>Drill to deep, hot rock </li></ul><ul><ul><li>Either wet system where heated water belowground is used </li></ul><...
VARIOUS ENERGY RESOURCES <ul><li>SOLAR </li></ul><ul><li>WIND </li></ul><ul><li>HYDRO POWER </li></ul><ul><li>TIDAL POWER ...
Solar Power
Electrical Power Windmills <ul><li>High speed, low torque machines </li></ul><ul><li>Will turn themselves off if wind spee...
Hydropower Electric  Mechanical
Tidal Power
Biomass Energy
Geothermal Energy
Solar Power <ul><li>Benefits </li></ul><ul><ul><li>Abundant </li></ul></ul><ul><ul><li>No greenhouse gases, few other poll...
Types of Solar Power <ul><li>Active </li></ul><ul><li>Passive </li></ul>
Active Solar Power <ul><li>This also refers to electrical generation using solar power </li></ul><ul><li>Two ways to do th...
Passive Solar Power <ul><li>Works on the principle that hot air rises and cool air sinks (convection) </li></ul><ul><li>So...
Large-scale Solar Electric Site
Large-scale Solar Electric Site <ul><li>These facilities use solar power to heat water to form steam.  The steam goes to g...
Wind power <ul><li>Can be used for mechanical tasks, e.g. pumping water </li></ul><ul><li>Can be used for generation of el...
Effects of windpower <ul><li>No greenhouse gases </li></ul><ul><li>Few other pollutants </li></ul><ul><li>Cheap </li></ul>...
Mechanical Power Windmills <ul><li>High torque, low-speed to pump water,  grind grain, saw wood </li></ul>
How hydropower works
Positive Effects of Hydropower <ul><li>Can generate electricity </li></ul><ul><li>Can do mechanical work, e.g. grind grain...
Negative effects of Hydropower <ul><li>Flooding the land  </li></ul><ul><li>Displacement of local inhabitants  </li></ul><...
Tidal Power <ul><li>Essentially entails placing a dam across an ocean inlet and harnessing the energy as water moves in an...
Biomass Pros & Cons <ul><li>Burning biomass gets rid of solid waste </li></ul><ul><li>Creates energy </li></ul><ul><li>Cre...
Ethanol production: not environmentally benign
GEOTHERMAL USES <ul><li>Pros – Can be used for electricity  generation, space heating, cooking & low temperature industria...
CONCLUSION <ul><li>These are all the energy resources ,which we are using in the day to day life. </li></ul><ul><li>In IND...
<ul><li>THANK YOU…….. </li></ul>
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Alternative energy sources

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Alternative energy sources

  1. 1. ALTERNATIVE ENERGY RESOURCES <ul><li>PRESENTED BY </li></ul><ul><li>SAMPATH.N </li></ul><ul><li>SANJAI.R </li></ul><ul><li>DEPARTMENT OF INFORMATION TECHNOLOGY </li></ul><ul><li>KARPAGAM COLLEGE OF ENGINEERING </li></ul><ul><li>COIMBATORE-32 </li></ul>
  2. 2. ABSTRACT <ul><li>Using more than one form of energy to meet needs is an important way to ensure long-term energy needs will be met </li></ul><ul><li>Just as in ecosystem ecology, we find that Diversity = Stability </li></ul><ul><li>Depending on only one form of energy leaves nation vulnerable to all sorts of problems </li></ul>
  3. 3. <ul><li>Drill to deep, hot rock </li></ul><ul><ul><li>Either wet system where heated water belowground is used </li></ul></ul><ul><ul><li>Dry system sends aboveground water belowground to get heated </li></ul></ul><ul><li>Resulting steam can be used for a number of purposes </li></ul>
  4. 4. VARIOUS ENERGY RESOURCES <ul><li>SOLAR </li></ul><ul><li>WIND </li></ul><ul><li>HYDRO POWER </li></ul><ul><li>TIDAL POWER </li></ul><ul><li>BIOMASS </li></ul><ul><li>GEOTHERMAL </li></ul>
  5. 5. Solar Power
  6. 6. Electrical Power Windmills <ul><li>High speed, low torque machines </li></ul><ul><li>Will turn themselves off if wind speed exceeds their limits </li></ul>
  7. 7. Hydropower Electric Mechanical
  8. 8. Tidal Power
  9. 9. Biomass Energy
  10. 10. Geothermal Energy
  11. 11. Solar Power <ul><li>Benefits </li></ul><ul><ul><li>Abundant </li></ul></ul><ul><ul><li>No greenhouse gases, few other pollutants </li></ul></ul><ul><ul><li>Simple, minimal repair needed </li></ul></ul><ul><ul><li>Cheap over the long term </li></ul></ul><ul><li>Detriments </li></ul><ul><ul><li>Retrofitting needed if structure is not already designed as passive solar </li></ul></ul><ul><ul><li>Has limitations, night, some locations better such as south rather than north facing slopes </li></ul></ul><ul><ul><li>Initial capital outlay can be high </li></ul></ul>
  12. 12. Types of Solar Power <ul><li>Active </li></ul><ul><li>Passive </li></ul>
  13. 13. Active Solar Power <ul><li>This also refers to electrical generation using solar power </li></ul><ul><li>Two ways to do this are photovoltaic cells and huge commercial electric facilities </li></ul><ul><li>This shows the diagram for the house seen in the previous slide. The PV panels are on the roof </li></ul>
  14. 14. Passive Solar Power <ul><li>Works on the principle that hot air rises and cool air sinks (convection) </li></ul><ul><li>Solar heats air and it moves through convection through the structure or to thermal mass </li></ul>
  15. 15. Large-scale Solar Electric Site
  16. 16. Large-scale Solar Electric Site <ul><li>These facilities use solar power to heat water to form steam. The steam goes to generate electricity just as in fossil fuel or nuclear electric plants. </li></ul><ul><li>No release of air pollutants </li></ul><ul><li>No electricity generated at night </li></ul><ul><li>They do work on cloudy days, though. </li></ul>
  17. 17. Wind power <ul><li>Can be used for mechanical tasks, e.g. pumping water </li></ul><ul><li>Can be used for generation of electricity for direct use or storage in batteries </li></ul>
  18. 18. Effects of windpower <ul><li>No greenhouse gases </li></ul><ul><li>Few other pollutants </li></ul><ul><li>Cheap </li></ul><ul><li>Abundant </li></ul><ul><li>Simple </li></ul><ul><li>Some noise pollution </li></ul><ul><li>Metal blades interfere with TV & radio reception </li></ul><ul><li>Aesthetic pollution </li></ul><ul><li>No evidence for bird death, but can kill bats </li></ul>Positive Negative
  19. 19. Mechanical Power Windmills <ul><li>High torque, low-speed to pump water, grind grain, saw wood </li></ul>
  20. 20. How hydropower works
  21. 21. Positive Effects of Hydropower <ul><li>Can generate electricity </li></ul><ul><li>Can do mechanical work, e.g. grind grain </li></ul><ul><li>No greenhouse gases </li></ul><ul><li>Initial construction provides jobs </li></ul>
  22. 22. Negative effects of Hydropower <ul><li>Flooding the land </li></ul><ul><li>Displacement of local inhabitants </li></ul><ul><li>Local climatic changes </li></ul><ul><li>Tectonic activities (Earthquakes) </li></ul><ul><li>Loss of species (aquatic & terrestrial) </li></ul><ul><li>Loss of normal nutrient flow down river </li></ul><ul><li>Changes temperature of water, too </li></ul>
  23. 23. Tidal Power <ul><li>Essentially entails placing a dam across an ocean inlet and harnessing the energy as water moves in and out with the tides </li></ul><ul><li>Positive & negative effects are same as hydropower </li></ul>Tidal dam
  24. 24. Biomass Pros & Cons <ul><li>Burning biomass gets rid of solid waste </li></ul><ul><li>Creates energy </li></ul><ul><li>Creates new markets for crops </li></ul><ul><li>Burning biomass releases CO 2 and other gases associated with combustion </li></ul><ul><li>Creates solid waste from ash </li></ul><ul><li>May cause more grasslands to be planted to corn </li></ul>
  25. 25. Ethanol production: not environmentally benign
  26. 26. GEOTHERMAL USES <ul><li>Pros – Can be used for electricity generation, space heating, cooking & low temperature industrial </li></ul><ul><li>Pros – Inexpensive after initial outlay </li></ul><ul><li>Pros – No greenhouse gas emission </li></ul><ul><li>Cons – same problems as we see with oil drilling </li></ul><ul><li>Cons – Localized distribution </li></ul>
  27. 27. CONCLUSION <ul><li>These are all the energy resources ,which we are using in the day to day life. </li></ul><ul><li>In INDIA ,we are mostly using the hydro power and wind energy </li></ul>
  28. 28. <ul><li>THANK YOU…….. </li></ul>

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