Wind Power </head> <body bgcolor="#800000" text="#FFA500"> <h1><center></center><b><font size="1"><a href="http://www.edu.pe.ca/kish" target="_top"><font size="1" color="#000000">KISH</font></a><font size="1" color="#000000">><a href="file:///G:/kish/grassroots/grassroots1.htm" target="_top">Grassroots</a>><a href="electric.htm" target="_top">Electricity</a></font></font></b><center>Wind Power</center></h1> <h3>Description Of Wind Power</h3> <h4> The terms "wind energy" or "wind power" portray the method in which the wind is used to make mechanical power or electricity . Wind turbines convert the kinetic energy in the wind into mechanical power. This mechanical power can be used for precise tasks (such as grinding grain or pumping water) or a generator can change this mechanical power into electricity to power homes, businesses, schools, and so on and so forth.</h4> <h4> </h4> <table border=3> <tr><td><h3> The Production Of Power From The Wind</h3></td></tr> <tr><td>§tep One: Wind mills are mounted on a tower, so they reach higher into the air, enabling them to be able to catch more energy from the wind. The mills catch the wind with their propeller like blades. </td><td> <p align="center"><img src= "2.gif" width="150" height="246"></p> </td></tr> <tr><td>§tep Two: Parts Of A Wind Turbine <br> nacelle-- Contains all of the important parts of the wind mill <br> <br>rotor blades -- The rotor blades capture the wind and transfer its power to the rotor hub. The blades are designed much like a wing of an airplane <br> <br>hub-- is connected to the low speed shaft of the wind turbine. <br> <br> low speed shaft-- connects the rotor hub to the gearbox. The shaft consists of the pipes for the hydraulics system to enable the aerodynamic brakes to function. <br> <br> gearbox--makes the high speed shaft to the right, turn about 50 times faster than the low speed shaft. <br> <br> high speed shaft with its mechanical brake--drives the electrical generator, has a back up brake <br> <br> electrical generator--converts mechanical energy into electrical energy. <br> <br>yaw mechanism--uses motors to turn the nacelle against the wind, operated by the electronic controller <br> <br>electronic controller-- has small computers that monitor the wind turbine, if any thing goes wrong it shuts the machine down, sends a message to the commanding computer's telephone modem link. <br> <br> hydraulics system-- Used to reset the brakes <br> <br>cooling unit-- contains an electric fan which is used to cool down the generators <br> <br>tower -- Hold the nacelle and rotor, the higher in the air this is placed the greater wind speeds it will receive <br> <br>anemometer and wind vane--used to measure the speed and the direction of the wind. <br> wind vane.</td><td><img src= "pic.gif."></td></tr> <tr><td> §tep Three: Mechanical Energy is changed into electricity by generators so you can use it in your own home.</td><td><img src= "pic2.gif."></td></tr> </table> <br><br><br> <table border=1> <tr> <td><h3>Advantages Of Wind Power</h3></td> <td><h3>Disadvantages Of Wind Power</h3></td> </tr> <tr><td> <ul> <li> Emits no air pollution </li> </ul> </td> <td><li> Wind energy will not ever be able to supply all of Canada's electrical requirements </li></td></tr> <tr><td><li> Do not use any form of fuel </li></td> <td><li> Disturb wild life and may cause death to birds</li></td></tr> <tr><td><li> They Consume no water or other scarce resources </li></td> <td><li> They generate a noise easily heard by near by homes and other facilities </li></td></tr> </table> <p>The Wind Power Inc. plant is located in Pincher Creek, Alberta, Canada this is also the Canadian agent for Enercon GmbHf Germany, the world's leading manufacturer of gearless wind turbines. <h2>Bibliography</h2> <p>"Wind Energy" available at <a href="http://www.surfnetkids.com/wind.htm"> Surf Net Kids</a href> February 25, 2002 <br>"Wind Energy Environmental Issues" available at <a href="http://www.nationalwind.org/"> Ñational Wind </a href>February 25, 2002 <br>"More Wind Energy" available at <a href="http://www.windpower.org ">Wind Power </a href>February 25, 2002 <p>Test sources cited as on the yellow sheet for KISH papers. <table border="1" width="100%" bordercolor="#000000"> <tr> <td width="100%"> <p align="center"><a href="wind2.htm"><img border="0" src="Back.gif" width="40" height="56"></a> <a href="Powersrc.htm"><img border="0" src="Home.gif" width="40" height="56"></a> <a href="Wind4.htm"><img border="0" src="Next1.gif" width="40" height="56"></a></td> </tr> </table> </body> </html>