Vernier Software and Technology
Vernier Software & Technology

Blade Variable: Shape

Introduction

People have been using energy from the wind to do work for a long time. Evidence has been found showing that windmills were used to pump water and grind grain into flour more than 2,000 years ago. The blades at that time were made out of wood or fabric stretched over a wooden frame and had a very large surface area.

Over time, advances in technology have resulted in changes in the shape of blades as well as the material used to make blades. In the 1890’s, more efficient steel blades replaced wooden blades. Today, blade technology continues to improve. Blades are now often constructed out of complex materials such as glass-reinforced plastic and carbon fiber and come in a variety of sizes and shapes based on their intended use.

In this experiment, you will use your data from previous experiments to design blades with different shapes. You will discover which blade shape produces the most power.

Objectives

  • Measure wind turbine power output with Go Direct Energy.
  • Investigate how blade shape affects the power output of a wind turbine.

Sensors and Equipment

This experiment features the following Vernier sensors and equipment.

Additional Requirements

Graphical Analysis 4

Wind Energy Explorations

See other experiments from the lab book.

1Energy Transformation
2Measuring Wind Energy
3Exploring Wind Turbines
4Wind Turbines: Effect of Load
5Blade Variable: Pitch
6Blade Variable: Quantity
7Blade Variable: Area
8Blade Variable: Shape
9Engineering Project: Max Power

Experiment 8 from Wind Energy Explorations Lab Book

<i>Wind Energy Explorations</i> book cover

Included in the Lab Book

Vernier lab books include word-processing files of the student instructions, essential teacher information, suggested answers, sample data and graphs, and more.

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