Vernier Software and Technology
Vernier Software & Technology

Mechanical Power

Figure from experiment 6 from Renewable Energy with Vernier

Introduction

Power is the rate at which energy is converted from one form to another

\text{power} = \frac{\text{amount of work done}}{\text{how long it took}}

where power is measured in watts (W), work is measured in joules (J), and time is measured in seconds (s).

In this experiment you will use a wind turbine to do the work of lifting a mass. You will vary the pitch of the blades of the wind turbine and measure the time it takes to lift a mass a given distance. Based on these measurements, you will calculate the mechanical power (in watts) generated by the turbine as it lifts the weights.

Objectives

  • Define how power is calculated.
  • Identify the units that are used to measure power.
  • Determine the relationship between wind turbine blade pitch and power generated.
  • Measure the power developed by a wind turbine.

Sensors and Equipment

This experiment features the following Vernier sensors and equipment.

Additional Requirements

You may also need an interface and software for data collection. What do I need for data collection?

Renewable Energy with Vernier

See other experiments from the lab book.

1Renewable Energy: Why is it So Important?
2What is Energy?
3Project: Energy Audit
4Voltage and Circuits
5Current and Resistors
6Mechanical Power
7Generators
8Exploring Wind Turbines
9Effect of Load on Wind Turbine Output
10Blade Variables and Power Output
11Solidity
12Turbine Efficiency
13Power Curves
14Power and Energy
15Project: Maximum Energy Output
16Project: Build a Wind Farm
17Exploring Solar Panels
18Effect of Load on Solar Panel Output
19Variables Affecting Solar Panel Output
20Effect of Temperature on Solar Panel Output
21Project: Build a Solar Charger
22Exploring Passive Solar Heating
23Variables Affecting Passive Solar Heating
24Exploring Solar Collectors
25Variables Affecting Solar Collectors
26Project: Solar Cooker

Experiment 6 from Renewable Energy with Vernier Lab Book

<i>Renewable Energy with Vernier</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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