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Case study of Wind Energy at National Institute of Technology, Silchar- India. PRESENTED BY Akash Joshi NATIONAL INSTITUTE OF TECHNOLOGY, SILCHAR, ASSAM INDIA. Location of NIT, Silchar. Silchar Latitude : 24° 49’ N Longitude : 92° 46’E Assam, India. Wind data at NIT, Silchar.

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Case study of wind energy at national institute of technology silchar india l.jpg

Case study of Wind Energy at National Institute of Technology, Silchar- India

PRESENTED

BY

Akash Joshi

NATIONAL INSTITUTE OF TECHNOLOGY, SILCHAR, ASSAM

INDIA


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Location of NIT, Silchar

Silchar

Latitude : 24° 49’ N

Longitude : 92° 46’E

Assam, India


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Wind data at NIT, Silchar

  • Annual average wind speed is 2.63 m/s

  • Wind speed is maximum in summer


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Savonius Turbine

Advantages of S-rotor:

1. Simple and cheap construction

2. Acceptance of wind from any direction thus eliminating the

need for reorientation.

3. High starting torque.

4. Relatively low operating speed (rpm)


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Analysis

  • The performance of the machine can be expressed in the form of Power Coefficient (Cp) versus tip-speed ratio (λ). For analysis, the following relations were used:-

  • Co-efficient of Performance, Cp = Protor/0.5ρV2

  • Tip speed ratio (λ) = Velocity of blade tip/Free stream velocity

  • Graphs showing Cp Vs TSR for different overlapping conditions


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Graphs form HOMER

  • Sample Graphs form HOMER for 3 SAVONIUS Wind Turbine, 1 Battery and 1 inverter of 2kW for above wind data at NIT, Silchar


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Conclusion

  • Wind speed at Silchar is very low

  • Savonius turbine is the best suitable option

  • Savonius turbine with 20% overlapping gives the best results.

  • Co-efficient of Performance at 20% overlapping is 21%


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Thank You !

Author : Akash Joshi

Contact: akash.joshi@yahoo.com,

akash.joshi@rediffmail.com


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