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Windpower Workshop
Hugh Piggott
Harness the wind and stop paying for workshop electricity with this excellent book by a leading expert. This book is not a step-by-step how-to, but meant as a starting point for those who want to design and build a windmill; one that will stand up to the most severe weather conditions. Text and detailed charts, diagrams and photos cover a variety of blades, alternators, and furling systems with the pros and cons of each. Details of generator choice and design, blade construction, furling systems, towers, wiring, battery charging, heating, alternator design, modifications for car alternators and generators, and everything else you will need to know. TABLE OF CONTENTS: 1. A WILD RESOURCE
The wind: a wild resource
No free lunch
The environmental cost
How much power can you expect?
Efficiency: where does the energy go?
Design basics
Summary 2. SAFETY
Electrical safety
Protection against fire
Protection against shock
Battery hazards
Other responsibilities 3. ROTOR DESIGN
Betz revisited
Using lift and drag
Blade design
Upwind, downwind or vertical axis
Conclusion 4. BLADE MAKING
A word of warning
Blade weight
Blade materials
How to carve a set of rotor blades
Painting and balancing the blades 5. GENERATORS
What to look for
How generators work
Changing the speed of generators
Types of generators
Motors used as generators
Building a permanent magnet alternator from scrap
Design hints
In conclusion 6. MECHANICAL CONTROLS
Facing into the wind
Avoiding overload
Turning away from the wind
Shut down systems 7. ELECTRICAL CONTROLS
Load control: the key to good performance
Heating systems
What batteries are best 8. TOWERS
Types of towers
How strong is strong enough
Erection
Hands-on tower erection
Guy materials
Anchors
Hints for safe erection of tilt-up towers
So we come to the end Glossary
Appendix
Resource Guide Index
159 pgs, 5.5x8.5, illus, softcover
$15.95
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