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7.5 Tidal Power Awasthi

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7.5 Tidal Power Awasthi Powered By Docstoc
					Kalpsar : A kayakalp project
Biggest Tidal project in the world envisaged




                         S R Awasthi
Tidal power is dependent on the tides created by
      the moon’s gravitational pull on earth
Potential : Places with highest tidal range
           gulf of Kutch in India
Gujarat : Gulf of Khambhat
Gulf of Khambhat
Gulf of Khambhat
Why a kayakalp project ?
•   fresh water reservoir = 2000 km2
•   12 rivers including Narmada, Mahi, Sabarmati, Dadhar
•   Dam = 64.16 km long and 35 m wide
•   Tidal power plant = 5,880 MW by installing bulb turbines
    of 40 MW each.
•   Highway multi-lane & a railway line across Gulf of
    Khambhat connecting Ghogha in Bhavnagar district in
    Saurashtra with Hansot in Bharuch District in South
    Gujarat, reducing distance by about 225 km.
•   Reclamation of land = 4 Lac hectares of saline will be
    replaced by fresh   water.
•
Modified plan
• A new location under investigation reduing
  dam length to 29 kms
• Estimation project cost reduction from Rs.
  50000 Cr to Rs. 30000 Cr.
• Execution : start       = 2012
             completion = 2020
Types of Tidal Power Generation

• Barrages
• Tidal Streams
Tidal Barrage

• Turbines
• Sluice gates
• Embankments
Bulb Turbine
Straflo or Rim Generator Turbine
Tubular Turbine
Tidal streams

• Instead of damming estuaries the tidal
 currents are harnessed using wind like
 turbines
Main methods of current
generation
• Marine current generator
• Stingray
• Tidal fence

				
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posted:1/3/2013
language:English
pages:15