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Solar energy power point presentation



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Solar energy power point presentation

  1. 1. GUIDED BY : SHAUNAK DESAI B.V. Patel Umarakh.
  2. 2.  Shreejit mody - 126560350048  Harsh patel - 126560350053  Yash avaiya -126560350018  Shivam patel - 126560350011  Dipesh panchal - 126560350062  Pankti shah – 126560350005  Meet jariwala - 126560350051  Urvish patel - 126560350057 Group members
  4. 4.  Solar energy is the energy received by the earth from the sun. This energy is in the form of solar radiation, which makes the production of solar electricity possible. What is solar energy ?
  5. 5.  Passive Solar Energy  Active Solar Energy  Photovoltaic Solar Power  Solar Thermal Energy  Concentrated Solar Power Types of solar energy
  6. 6. Passive Solar Energy is a method in which solar energy is harnessed in its direct form without using any mechanical devices. Drying Clothes in daylight is an example of using solar energy passively. Passive Solar Energy has a few applications which all of us can use (where ever there is sunlight). Daylighting Passive Solar Heating Passive Solar Cooling Passive solar energy
  7. 7. The Active Solar Energy employs mechanical or electrical equipment for functioning and increase system efficiency. As an example water pumps are used to circulate water through the active solar energy water heating system. Some Applications of Active Solar Energy which can be very helpful to all of us. Active Solar Water Heating Active Solar Pool Heating Active Solar Space Heating Active solar energy
  8. 8. Solar Thermal Energy is the heat energy derived from the incident solar energy (sunlight). This is used by Solar Heating Panels. Yes, you guessed it right. Solar Thermal Energy does have advantages like other forms of solar energy. Solar Water Heating Solar Pool Heating Solar Space Heating These are the common uses of Solar Thermal Energy. By taking advantage of these you can get plenty of benefits. Electricity can be generated using solar energy commonly this is known as Solar Thermal Electricity Solar thermal energy
  9. 9. The Energy generated by incident solar energy (light) into electricity is termed as Photovoltaic Solar Power. This is done using Photovoltaic Solar Cells. Every one of us can get the benefits of the applications of photovoltaic solar power. Solar Electricity Photovoltaic Solar Lighting Photovoltaic Cooling Photovoltaic energy
  10. 10. Concentrated Solar Power is a branch of Solar Thermal Energy which is used to generate solar power electricity. Electricity is produced on a large scale by using this technology. This technology is not in either of our scope. But we can surely get its benefits from a renewable energy supplier or green power from the electricity supply company. Knowing about the different solar energy types can be very helpful. You can use this knowledge in order to decide in what way the solar energy can be used for your advantage. Come what may you will always get the benefit of any types of solar energy and help you contribute to make this world a better place! Concentrated solar energy
  11. 11.  A solar power plant of the size 10–100 kW depending on the load demand, is preferable Particularly with a liberal subsidy to raise the quality of life of the people subjected to poverty in these areas. Centralized power generation and distribution, individual DLS (domestic lighting systems) are also common in many rural unelectrified houses. Application of solar power
  12. 12. Heat Your Swimming Pool With Solar Energy Solar Energy Can Heat Your Water Solar Energy For Battery Charging Power Your Home With Solar Energy Solar Energy For Cooking Solar Energy for Indoor Lighting Solar Energy Used For Outdoor Lighting Uses of solar energy
  13. 13. Solar Technologies o Daylighting o Passive Solar Heating o Active Solar Heating o Concentrating Solar Thermal o Photovoltaics (PV)
  14. 14.  Solar World manufacturers solar panels entirely in the USA from raw silicon to completed solar panels.  This process involves four main steps: crystal growing, wafering, solar cell production and solar panel assembly.  Crystal growing   Wafering   Solar cell production   Solar panel assembly  How solar panels are made ?
  15. 15. Costs for making solar panels Component Cost per Unit (RS) Solar Panel 150 Battery 80 LEDs 50 Circuit Components 60 Printed Circuit Board 10 Enclosure 35 Assembly 15 Total Manufacturing Cost per Lantern RS 400
  16. 16.  http://urvishdave.files.wordpress .com/2012/09/solar-projects-till- ag1.jpg Where are solar stations in India ?
  17. 17. Daylighting
  18. 18. Active Solar Heating Flat Plate Collect or Evacuated Tube Collector
  19. 19. Concentrating Solar Power
  20. 20. Power Tower
  21. 21. How a Power Tower Works
  22. 22. True orTrue or False?False?
  23. 23. Today’s PV Cells are lessToday’s PV Cells are less than 20% efficient atthan 20% efficient at converting radiant energyconverting radiant energy to Electrical energyto Electrical energy
  24. 24. It’s True!It’s True!
  25. 25. Advantages and Disadvantages
  26. 26. All chemical and radioactive polluting byproducts of the thermonuclear reactions remain behind on the sun, while only pure radiant energy reaches the Earth. Energy reaching the earth is incredible. By one calculation, 30 days of sunshine striking the Earth have the energy equivalent of the total of all the planet’s fossil fuels, both used and unused! Advantages of Solar Energy
  27. 27. Disadvantages of Solar Energy • Sun does not shine consistently. • Solar energy is a diffuse source. To harness it, we must concentrate it into an amount and form that we can use, such as heat and electricity. • Addressed by approaching the problem through: 1) collection, 2) conversion, 3) storage.
  28. 28. Thank you

Editor's Notes

  • The Sun is 93 million miles away.
    A tiny fraction of the Sun’s energy hits the Earth (~a hundredth of a millionth of a percent) is enough to meet all our power needs many times over. In fact, every minute, enough energy arrives at the Earth to meet our whole demands for a year.
    We call the energy from the sun, solar energy.
    Just the tiny fraction of the Sun’s energy that hits the Earth.
    Solar energy is transmitted to the earth in the form of radiant energy.
    It is vital to us because it provides the world—directly or indirectly– with almost all of its energy.
    In addition to providing the energy that sustains the world, solar energy is stored in fossil fuels and biomass, and is responsible for powering the water cycle and producing wind.
  • The four technologies employed to make use of solar energy are:
    Daylighting- the use of natural sunlight to brighten the building’s interior.
    Passive Solar Heating- takes advantage of Sun’s warmth and materials that absorb that warmth during the day/release it at night when heat is needed.
    Active Solar Heating- solar collectors concentrate the sun’s power on dark color plates that absorb heat. Air or liquid flows through tubes and warmed by the plates.
    Concentrating Solar Thermal- mirrors direct sunlight on one point. Water is turned into steam with this heat. The steam turns a turbine to create electricity.
    Photovoltaic(PV)- converts sunlight directly to electricity.
  • Langston High School in Arlington, VA and Caywood Elementary in Kentucky use daylighting to keep energy costs down.
  • Indirect Water Heater:
    The most common collector is called a flat-plate collector. Mounted on the roof, it consists of a thin, flat, rectangular box with a transparent cover that faces the sun. Small tubes run through the box and carry the fluid — either water or other fluid, such as an antifreeze solution — to be heated. The tubes are attached to an absorber plate, which is painted black to absorb the heat. As heat builds up in the collector, it heats the fluid passing through the tubes.
    Evacuated-tube collectors can achieve extremely high temperatures (170°F to 350°F), making them more appropriate for commercial and industrial application. However, evacuated-tube collectors are more expensive than flat-plate collectors, with unit area costs about twice that of flat-plate collectors. Evacuated tube collectors are usually made of parallel rows of transparent glass tubes. Each tube contains a glass outer tube and metal absorber tube attached to a fin. The fin is covered with a coating that absorbs solar energy well, but which inhibits radiative heat loss. Air is removed, or evacuated, from the space between the two glass tubes to form a vacuum, which eliminates conductive and convective heat loss.
    The storage tank then holds the hot liquid. It can be just a modified water heater, but it is usually larger and very well-insulated. Systems that use fluids other than water usually heat the water by passing it through a coil of tubing in the tank, which is full of hot fluid.
    Solar water heating systems can be either active or passive, but the most common are active systems. Active systems rely on pumps to move the liquid between the collector and the storage tank, while passive systems rely on gravity and the tendency for water to naturally circulate as it is heated.
    More information available at
  • A clean, large-scale solar thermal technology known as concentrating solar power is used in special power plants (Concentrating Solar Power or CSP plants) that use different kinds of mirror configurations to convert the sun's energy into high-temperature heat. The heat energy is then used to generate electricity in a steam generator.
  • World’s largest solar power tower in Seville, Spain.
    Solar power tower consists of a large field of sun tracking mirrors, called heliostats, which focus solar energy on a receiver atop of a centrally located tower. The enormous amount of energy, coming out of the suns rays, concentrated at one point (the tower in the middle) produces temperatures of approx. 550 C TO 1500 C.
    The gained thermal energy can be used for heating water or molten salt, which saves the energy for later use. Heated water gets to steam, which is used to move the turbine generator. This way thermal energy is converted into electricity.
  • This graphic shows how the power tower is used to heat molten salt which is used to heat water to produce steam to turn a turbine which produces electricity.
    Molten salt is used to transfer the heat because the heat can be stored and used when the sun is behind the clouds or at night.
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