wind power- wind energy advantages and disadvantages - Electrical input

Wednesday, August 15, 2018

wind power- wind energy advantages and disadvantages

                                                               

                                                  Wind Power




Wind power or wind energy is the process in which wind current used to generate electricity. Air flow through wind turbines which is connected to generator with the help of shaft which spin a generator to create electricity.

Types of wind turbine :-

1.Horizontal axis wind turbine
2.Verticle axis wind turbine
3.Ducted wind turbine

1.Horizontal axis wind turbine:- in Horizontal axis turbine blades rotating on an axis parallel to the ground. This type of turbine most commonly used. Wind currents hits the bladse and rotate the turbine, which connected to generator through shaft. The shaft has a gear on the end which turns a generator and produces electricity and send to power station.
2. Verticle axis wind turbine:- in vertical axis turbines blades rotating on an vertical axis to the ground. All main components are near to ground. Two type of vertical axis turbines (lift based) and (drag based). But lift based vertical axis turbine used more frequent as compare to drag based. Drag based vertical axis turbine is much efficient than lift based.

3.Ducted wind turbine :- ducted turbines are used at the edge of the roof of the building, The air flows upwards, building wall then enters the front of the duct. The diameter of blade is around 600 mm.


                                                wind power components


Wind energy->  is a Kinetic energy of air in motion is called wind, total wind energy passes through a surface with area A and time t is given by,
We know that,

   E = ½ mv2   = 1/2 (Avtρ)v2 = ½ At ρv3
   ρ = density of air
   v = wind speed
  Avt = volume of air passing through A
  So, power is energy per unit time,
   P = E/t = 1/2Aρv3

Wind power in an open air stream which is proportional to the third power of the wind speed, when speed is double than available power increases.

Wind Farms :- it is a group of wind turbines at any particular location used to generate electric power.

Offshore and Onshore Wind Farms :-  in offshore turbines located out at sea or in fresh water where in onshore turbines located on land.

Largest operational offshore wind farms :-

     Wind farm                                      Capacity (MW)                                     Turbines 
London Array (UK)                                   630                                       175 × Siemens                                                                                                                   SWT- 3.6-120

Gemini Wind Farm (Netherlands)              600                                       150 × Siemens                                                                                                                   SWT-4.0

Gode Wind (Germany)                             582                                         97 x Siemens                                                                                                                    SWT-6.0-154

Some operational onshore wind farms:-

         Wind farm                                               Capacity (MW)                                    
Alta Wind Energy Center(USA)                                    1,548 
Buffalo Gap Wind Farm (USA)                                     523.3                             
Bayannur Wulanyiligeng Wind Farm(China)                  300

Advantages of wind power:-
1. Cost efficient source of energy
2. No harmful gases produced
3 .wind energy is cheaper than new generation available today

Disadvantages of wind power:-
1. Noise produced by rotor blades
2. Death of birds that fly into the rotor
3. spoil the view for people living near them


8 comments:

  1. Our group of master commentators went through over 80 hours looking into, .... Our bestoverall decision for compact generators gives astonishing force at a . honda 2000 generator for sale

    ReplyDelete
  2. This is an awesome post. Really very informative and creative contents.
    ios app Devlopment company in chennai

    ReplyDelete
  3. Finally there is the module half and half electric vehicle (PHEV). אגירת אנרגיה סולארית

    ReplyDelete
  4. Thanks so much with this fantastic new web site. I’m very fired up to show it to anyone. It makes me so satisfied your vast understanding and wisdom have a new channel for trying into the world. solar home system

    ReplyDelete
  5. In this period of false reverence, the author has composed each word with everything that is in him filled it.
    southend electrician

    ReplyDelete
  6. Thank you for sharing this information. There are several best wind turbine generator manufacturers in India. However, the one that provides the best services is “J.D. Engineering Works.”

    ReplyDelete
  7. Others, for example, Isaac Newton, later utilized this machine utilizing a chunk of glass rather than sulfur, and afterward a chamber, and afterward a glass plate.Zonnepanelen

    ReplyDelete