Skip to main content

Wind Energy

 Wind energy is the form of solar energy.Wind energy is describes the process by which wind is used to generate  electric energy.Here Wind turbines convert kinetic energy in the wind into mechanical energy and generator convert mechanical power into electricity.

  • China is the largest in wind energy of capacity 221GW.
  • US is the second place with 96.4GW.

According  to axis alignment, wind energy divided into two types.

  • Horizontal axis wind turbine
  • Vertical axis wind turbine

Horizontal  axis turbine further divided into 3 types.

  • Dutch type windmill
  • Multiblade water pumping windmills
  • High-speed propeller type windmills
Vertical axis wind turbines may be divided into two types.

  • Savonius rotor
  • Darrieus rotor
How does wind turbine work

When the wind passes over the blades and make them turn and produce kinetic energy. Then the blades turn a shaft within nacelle.
The shaft turns a generator which converts the kinetic energy into electrical energy. Then transformer situated bottom  of the tower step up or the right voltage required  for the local network and then these electricity exported to the electricity grid.

Various part of a wind turbine tower

Naccele-It is a cover housing that houses all the generating components in a wind turbine incuding gerator, gearbox drive drain and brake assembly.

Yaw system



Yaw system  located  between the wind turbine nacelle and tower. It's  responsible is to orientation of wind turbine tower towards the wind.

Anemometer-It is a device used to measure the wind speed and direction.

Gear box:It connects the low speed shaft to high speed shaft and increase the rotational speed from about 30-60 rotation per minutes to about 1000-1800 rpm. This is the rotational  speed required by most generator  to produce electricity.

Labels:

Comments

Post a Comment

If any doubts let me know..

Popular posts from this blog

concrete pole specification | how to calculate cement, sand and aggregate quantity in concrete

Today I will tell, how PCC pole concreting is done? Before knowing about our topic, let's take a little knowledge about PCC Polls.full form of pcc pole is Plain  Cement Concrete pole .There are various types of PCC Pole like 8 mtr 8.5 mtr ,9 mtr .but Now I will discuss about only 8.5 mtr pcc pole. As per Guaranteed Technical Perticulars(GTP) Total Length-8.5 mtr Pit depth-1.5 mtr Working load applied 300 mm from top-180 kg Weight of the pole-415 Kg. Top dimension-90mmx145 mm Bottom dimensions-90mm x 300 mm we have to maintain pit length is 1.5 mtr and pole should be inside pit is L/6 where L is length of the pole. Explained : L=8.5 mtr Pit depth=L/6+0.075(Base plate) Pit diameter =20 inch(0.508 mtr) Let's go to our topic now. How to calculate cement, sand and aggregate quantities for ratio 1:2:4 Pit Size For one cmt cement required -6 bag Our pit volume (dia-0.508 mtr where r-0.254, depth-1.5 mtr) Volume -pie*r2*h                =3.14*0.254*0...
Post a Comment
Read more

what are the possible causes of cable faults?

नमस्कार मित्रों,आज मैने HT AB CAble फॉल्ट कियुं होता है उसिके बारे में चर्चा करूंगा।    आप सभी जानते है कि एचटी एबीसी साइट इंजीनियर के लिए सरदर्दी बन जाती है। जैसे ही लाइन चार्ज करते है कुछ मिनटों या महीनों के बाद फॉल्ट आना पैदा करदेता है।   बहुत सारे इंजीनियर तो बोलना शुरू कर देते है कि खराब इनसुलेशन की बजहा से ऐसे फॉल्ट होता है।  बहुत सारे रिसर्च और अनुभव के बाद  बाद में यही नतीजे में पहुंचा कि जो इस्प्रकर की। 1) अन लोडिंग,स्टोरेज और हैंडलिंग सही से होना चाहिए। 2) टर्मिनेशन किट या ज्वाइंटिंग सही से होना चाहिए। 3) एआर्थिंग सही से होनी चाहिए जैसे कि टर्मिनल की latches  एआर्थिग  जरूर करना होता है। एक चीज ध्यान देना कि मैसेंजर तार को भी दोनों साइड में एर्थिंग करने की। ऐसे तो मैने ए भी कहूंगा कि  हर एक खंबे में मैसेंजर तार को एर्थिग करना चाहिए। Please Subscribe my YouTube channel ⁸ साइट पर केबल ड्रम की अन-लोडिंग, स्टोरेज और हैंडलिंग के लिए दिशानिर्देश जो इस प्रकार की होनी चाहिए।  केबल ड्रम की अनलोडिंग या तो क्रेन द्वारा या होइस्ट द्वारा या ट्रक ...
Post a Comment
Read more

11KV ABC cable current carrying capacity

Let us discuss about Size and current carrying capacity of a  11 KV 3x120 mm2 AB Cable. Before getting answer we have to know about Technical Specification.The Technical Specification as below. TECHNICAL SPECIFICATION FOR 11KV AB Cable( AERIAL BUNCHED CABLES)  and XLPE insulated (CROSSED LINKED POLYETHYLENE DRY GAS CURED/WET CURED) FOR OVERHEAD LINES. 1. SCOPE  This specification covers requirements of XLPE insulated, 11 KV Aerial Bunched Cables for overhead lines. 2. COMPOSITION OF THE CABLE The composite cable shall comprise three single-core cables twisted around a bare aluminium alloy messenger wire, which will carry the weight of the cable. 3. RATED VOLTAGE The rated voltage of the cables shall be 6.35KV/11KV and the maximum operating voltage shall be 12 KV. 4. APPLICABLE STANDARDS Unless otherwise stipulated in this Specification, the following Standards shall be applicable: i) IS: 7098 (Part-II) - 1985 – Cross linked Polyethylene Insulated PVC Sheathed Cables ...
Post a Comment
Read more