Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Solar tower


Published on

Solar Tower-an alternate way to enhance energy,using renewable source like Solar ENergy

Published in: Education, Technology, Business
  • Be the first to comment

Solar tower

  1. 1. Solar Tower 1 An alternate way to enhance energy Presented by Aziz Companiwala
  2. 2. Contents  What is Solar Tower  Classifications  Steam Based  Molten Salt Based  Heliostat  Advantages of use of Solar Energy  Application  Newly setup solar towers  Scope in India
  3. 3. Solar Tower is method to convert solar energy into electrical energy  Solar towers generate electric power from sunlight by focusing concentrated solar radiation on a tower-mounted heat exchanger (receiver).
  4. 4. Solar Tower can basically classified as:1)Steam Based Solar Tower  Water is used as medium which is converted to steam to generate electric power 2)Molten Salt Based Solar Tower  Here melted solution of potassium nitrate and sodium nitrate is used instead of water as a medium
  5. 5. 1)Steam Based Solar Tower Working Procedure: In solar tower, water is pumped to the receiver at topmost part of Solar tower.  Now solar radiation would be concentrated on receiver via Heliostat  Thus steam is generated due to rise in temperature inside the receiver tank which is further used in steam turbine generator
  6. 6. Working Procedure:-  Thus Electric Power is generated from Solar Energy
  7. 7. Heliostat  Heliostat is a Greek word:Helios- sun stat - stationary  A Heliostat is a device that tracks the movement of the sun.  A heliostat is a device made of a plane metallic mirror, which turns on as to keep reflecting sunlight towards a predetermined target.
  8. 8.  Limitation of this method is there is no alternative to produce electricity in absence of sunlight.
  9. 9. 2)Molten Salt Based Solar Tower  Here melted solution of potassium nitrate and sodium nitrate instead of water as a medium  This molten salt mixture (60 % sodium nitrate and 40% potassium nitrate) is used due to its properties of absorbing and accumulating heat energy for long time. This plant is known as Gama Solar Tower.  This type of solar tower will work for approximate 4-5 hours in absence of sunlight.
  10. 10. Advantages of use of Solar Energy  Solar energy is renewable, and also accessible in any part of the world.  solar energy is non-pollutant, zero noise pollution – since there are no moving parts in any of the devices which are used to capture the sunlight.  Maintenance costs are low as well – only occasional cleaning and periodic battery replacements are needed.  long-life operation guaranteeing.
  11. 11. Applications  In order to supply Electricity for street lights, & wherever the grid electricity is unreliable or unavailable, solar power tower technologies are used.  Solar Power can be used as Alternative for Wind & Hydro power.  These plants are best suited for utility-scale applications in the 30 to 400 MW range.  Provides rough enough Electricity for night use & during Cloudy weather.
  12. 12. Newly setup solar towers  Ivanpah Solar Power Facility:- 1,080 (GWh) Yearly Production in United States.Estimated to be completed till 2013.  Crescent Dunes Solar Energy:- 500 (GWh) Yearly Production in United States. Estimated to be completed till 2013  PS20 solar power tower:- 44 (GWh) Yearly Production in Spain. Established in 2009.  Gemasolar:- 100 (GWh) Yearly Production in Spain. Established in 2011.  PS10 solar power tower:- 24 (GWh) Yearly Production in Spain. Established in 2006 PS10 solar power tower in spain
  13. 13. Solar Project - Australia Basic Prnciple:- Hot Air Rises
  14. 14. Establishment of solar tower in India  As this three basic need (Land, source, and solar energy) are provided in India this can a great source of energy in future.  As Tropic of cancer line passes through India which give indication that India can have great source of solar energy.  As Tropic of Cancer line passes through Gujarat(So great amount of solar energy), and also a rich source of sodium nitrate and potassium nitrate and a large flat surface is available in Kutch, So that Gama solar tower can be established there which will prove a great source of energy in future.
  15. 15. Thank you Presented by Aziz Companiwala 2nd year mechatronics