Vernier Software and Technology
Vernier Software & Technology

Effect of Load on Wind Turbine Output

Figure from experiment 9 from Renewable Energy with Vernier

Introduction

Electricity is used to run many things in our daily lives, and each device that uses electricity can be considered a load. A load uses electrical energy to accomplish its task. The simplest form of a load is a resistor, which converts electrical energy into thermal energy. In most cases, resistors are used to adjust the amount of energy getting to part of a device by changing a voltage or diverting a current, but in a few cases thermal energy is the desired result, as with space heaters and toasters.

If you have done Experiment 5 "Current and Resistors," you found that as the amount of load (resistance) in a circuit increases, the current decreases. You also found that as you change the amount of load in the circuit, the voltage changes only a small amount. If you have done Experiment 8 “Exploring Wind Turbines,” you found that when voltage and/or current increases in a circuit, the amount of power also increases.

In this experiment, you will measure the power output of a wind turbine and determine the optimal load. That is, you will determine the resistance for which the power output is greatest. You will then compare the optimal load to the internal resistance of the generator.

Objectives

  • Determine how power output of turbine varies depending on the resistance (load) in the circuit.
  • Compare internal resistance and optimal load.

Sensors and Equipment

This experiment features the following Vernier sensors and equipment.

Option 1

Option 2

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
18AEffect of Load on Solar Panel Output
18BFill Factor and IV Curve of a Solar Panel
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 9 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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