Wind Power for Agriculture and Electricity.

Abstract

The objective of this research is to study the possibilities of wind power for water pumping and for electricity generation. The study comprises the design of types of wind mills and water pumps suitable for rural areas. The test results indicate that the windmill of 4.00 meters in diameter, with 8 colth sails (or used fertilizer sacks), turning in all directions is capable of pumping water at a rate of about 1700 liters per hour, with a head of 4.00 meters, the wind velocity being 10 kilometers per hour, the pump being 102 mm. in diameter and 70 mm. stroke. The test also shows that : 1) If the size of the tail is properly designed, the windmill will automatically turn away from wind direction when the wind velocity is too high. There is therefore no need for a safety device for protection from strong wind. 2) Temporary stop for changing parts or servicing may be accomplished by closing the water exit, there is thus no need for a braking device. These two factors reduce a great deal of cost of the system.