Vernier Software and Technology
Vernier Software & Technology

Blade Variable: Pitch

Introduction

Do you know that the air you breathe is actually made up of atoms? When you are running down the street or moving fast on a bike, have you felt wind blowing on your face? What you are feeling is the force of many atoms against your skin.

When blades move through the air, they also push against the atoms that make up air. The atoms push back, creating a force that resists or opposes the motion of the turbine blades. The resistance experienced by blades moving through air is called drag.

Blade design engineers try to reduce the amount of drag experienced by blades while maximizing the power output of the turbine. One of the ways they do this is by changing the pitch or angle of a blade. In this experiment, you will explore the relationship between blade pitch and wind turbine output.

Objectives

  • Measure power output of a wind turbine with an Energy Sensor.
  • Investigate how blade pitch affects power output.
  • Determine optimal blade pitch for maximum power output.

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 5 from Wind Energy Explorations Lab Book

Wind Energy Explorations 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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