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Renewable Energy Systems


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1. Introduction
2. Solar Energy
3. Wind Energy
4. Hydropower
5. Biomass Energy
6. Geothermal Energy
7. Wave and Tidal Energy

Note: This is only the introduction part of a very big presentation. Please download the full version from here:

Published in: Education
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Renewable Energy Systems

  2. 2. This is only the introduction part of a very big presentation. Please download the full version from here: 2
  3. 3. RENEWABLE ENERGY SYSTEMS Outline 1. Introduction 2. Solar Energy 3. Wind Energy 4. Hydropower 5. Biomass Energy 6. Geothermal Energy 7. Wave and Tidal 3
  4. 4. RENEWABLE ENERGY SYSTEMS Introduction • Comparison of different forms of energy • National and global patterns of energy supply and utilization • Temperature and other climate impacts 4
  5. 5. RENEWABLE ENERGY SYSTEMS Solar Energy • Solar radiations • Passive and active solar thermal energy system • Solar thermal applications • Water and space heating • Solar ponds, dryers and distillation • Solar thermal electric systems • Photovoltaic cells • Storage system 5
  6. 6. RENEWABLE ENERGY SYSTEMS Wind Energy • Wind resources and characteristics • Wind machinery and generating systems • Wind turbine types: horizontal axis & vertical axis • Betz conditions • Effects of solidity • Controlling and optimizing wind turbine performance 6
  7. 7. RENEWABLE ENERGY SYSTEMS Hydropower • Basic energy conversion principle • Conversion equipment and engineering operations • Hydraulic machine types • Affinity laws and specific speed related to rotodynamic machines 7
  8. 8. RENEWABLE ENERGY SYSTEMS Biomass Energy • Biomass resources and biofuels production • Properties relevant to energy production • Thermal conversion of biomass • Biochemical conversion: anaerobic digestion, fermentation to alcohol, physical processing and briquetting • Combustion process • Use of biomass derived 8
  9. 9. RENEWABLE ENERGY SYSTEMS Geothermal Energy • Geophysics of the earth’s interior • Hydrothermal and geo-pressured systems • Equipment for recovering energy • Direct heat utilization and electric power generation 9
  10. 10. RENEWABLE ENERGY SYSTEMS Wave and Tidal Energy • Energy from tides, waves and temperature differences • Economic prospects • Environmental and sustainability considerations • Types of equipment for extracting wave and tidal energy 10
  11. 11. RENEWABLE ENERGY SYSTEMS Books • John Twidell and Tony Weir, “Renewable Energy Resources”, Routledge, 2014. • Godfrey Boyle, “Renewable Energy: Power for a Sustainable Future”, Oxford University Press, 2004. 11
  12. 12. Introduction NAVEED UR REHMAN 12
  13. 13. INTRODUCTION All the renewable energy sources are principally derived from the enormous power of Sun's radiation. 13
  14. 14. INTRODUCTION These renewable energy sources are at once, the most ancient and now, the most modern forms of energy used by humanity. 14
  15. 15. INTRODUCTION Solar power is one of the ultimate sources of energy upon which early human societies were based. 15
  16. 16. INTRODUCTION When our ancestors first used fire, they were harnessing the power of photosynthesis which is a solar driven process by which plants are created from water and atmospheric carbon dioxide. 16
  17. 17. INTRODUCTION Societies went on to develop ways of harnessing the movements of water and wind to grind corn, irrigate crops and propel ships. 17
  18. 18. INTRODUCTION Both the natural movements of water and wind are caused by solar heating of the oceans and atmosphere. 18
  19. 19. INTRODUCTION As civilizations became more sophisticated, architects began to design buildings to take advantage of the Sun’s energy by enhancing their natural use of its heat and light, so reducing the need for artificial sources of warmth and illumination. 19
  20. 20. INTRODUCTION Technologies for harnessing the power of Sun, water and wind continued to improve right up to the early years of the industrial revolution. 20
  21. 21. INTRODUCTION However, by then the advantages of coal, the first of the fossil fuels to be exploited on a large scale, had become apparent. 21
  22. 22. INTRODUCTION These highly-concentrated energy sources soon displaced wood, wind and water in the homes, industries and transport systems of the industrial nations. 22
  23. 23. INTRODUCTION Today the fossil fuel trio of coal, natural gas and oil provide over 80% of the world’s energy. 23
  24. 24. INTRODUCTION Concerns about the adverse environmental and social consequences of fossil fuel use, such as air pollution, oil spills, mining accidents, deforestation and about the finite nature of supplies, have been voiced intermittently for several centuries. 24
  25. 25. INTRODUCTION But it was not until the 1970s, with the steep price rises of the ‘oil crisis’ and the advent of the environmental movement, that humanity began to take more seriously the prospect of fossil fuels ‘running out’, and the possibility that their continued use could be destabilizing the planet’s natural ecosystems and the global climate. 25
  26. 26. INTRODUCTION The development of nuclear energy following World War II raised hopes of a cheap, plentiful and clean alternative to fossil fuels. 26
  27. 27. INTRODUCTION However, nuclear power development has stalled in some countries in recent years, due to increasing concern about safety, cost, waste disposal and weapons proliferation, although in other countries nuclear expansion is continuing. 27
  28. 28. INTRODUCTION Continuing concerns about the ‘sustainability’ of both fossil and nuclear fuel use have been a major catalyst of renewed interest in the renewable energy sources in recent decades. 28
  29. 29. INTRODUCTION Now, what is a Sustainable Energy Source? Sustainable energy source is one which help this world in meeting its present needs without depleting of serving next generation’s needs. 29
  30. 30. INTRODUCTION Sustainable energy does not involve significant pollutant emissions or other environmental problems. 30
  31. 31. INTRODUCTION Also, sustainable energy does not involve the spread of substantial health hazards or social injustices. 31
  32. 32. INTRODUCTION At present, oil and gas present at large scale and thus are sustainable energy sources. 32
  33. 33. INTRODUCTION What is a Renewable Energy Source? Renewable energy source include such a natural source which can be replaced by natural ecological cycles. That is, they renew thus never gets deplete. 33
  34. 34. INTRODUCTION Tidal, wave, geothermal, wind and solar energies are counted as renewable energy sources. 34
  35. 35. INTRODUCTION The energy coming from sun and wind can be characterized as both sustainable and renewable energy sources. 35
  36. 36. This is only the introduction part of a very big presentation. Please download the full version from here: 36
  37. 37. 37