TOTAL TIME: 1 Hour
OBJECTIVES: To learn how to distinguish a good wind site from an inadequate site.
To understand the rules of thumb for siting windpumps
MATERIALS: Blackboard or equivalent
PROCEDURES:
Step 1: 30 minutes
Water availability, depth, proximity to users, and wind velocities and abundance are of primary concern for the siting of wind powered pumps. Discuss trees, buildings and topographical features and their effect on the wind which blows near the water supply.
Step 2: 20 minutes
Discuss other factors affecting site selection.
Ground- |
Is the ground firm enough to support a tower or
structure? |
Winds - |
Seasonal variations - measure velocities Establish a projected annual wind resource availability if possible, using local individuals and government agencies. |
River - |
If site is located near a river, determine if flooding is a problem. Is erosion along river bank a problem? |
Ownership - |
Who will own, maintain and allocate water? |
Other Factors - |
Consider weather extremes (hurricanes, tornadoes, etc.), noise or other factors which are important to users or as a demonstration project. |
Step 3: 10 minutes
Finally, discuss the use of wire lines to transmit mechanical power for use at the distant site. Use model to demonstrate the principles and note the 1/4 mile limitation using this system.