Quick Intro - How to Build the Wind Generator Blades |
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| Written by malcm | |
| Friday, 12 February 2010 | |
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Wind generator blades are the necessary part for the working of the wind generator. These wind blades are arched and big, and they are quite similar to the airscrew blades of the airplane, and these blades are the great source for power generations. Making the own wind generator blade is the great way to reduce the cost of making the own wind generator and it also gives some self satisfaction. This article gives a brief look at how to build the homemade wind generator blades to save the money. It is highly important to select the right material to build the blades as it has direct impact on the efficiency of the wind generator. Some of the materials that are used to build blades are wood, metal, and plastic. Woods are considered as the good choice for the yesteryear traditional wind generators, metal are the very easy item to work with, and plastics are the ideal material to make the blades. It is highly recommended to build the blades with PVC pipes because of so many reasons such as the wood can crack, wood absorbs water, and the crack makes wood to absorb water. Also, wooden blades are very complicated and highly time consuming. For making three wind generator blades, a person require 4” or 6” PVC pipe, which is less than 4’ in length and for blades that is less than 30’’ in length, a person can make use of 4” diameter PVC. For making blades between 30” and 48”, one may need a PVC pipe of diameter of 6” PVC pipe. First, middle line should be drawn down the pipe, as the blades branch from the centerline and thus makes more power. The blade should be made pointed for about 5” at the base and 2 ¾” at the peak, and then curve the blades at the labeled line. Smooth the edges near the cut part to get the good finish and before equalizing the blades, paint the blades with the UV protective paint. UV covering paint shields the PVC pipe from becoming brittle due to the direct sunlight exposure. For balancing the blades, mount them on the hub and put the hub on the piece of steel rod with some pillow block bearings. Spin the blades to find the bottom blades and clean-cut the bottom blade little more than the other blades, as balanced blades are more protective than the unbalanced one. |
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