Lesson 10 The Efficiency Formula
Completion requirements
Efficiency Calculations
C10.4 thermal image of electrical transformers
In this lesson, we have looked at how efficiency is a measure of how much work or energy is conserved in an energy transformation process. The less efficient a process, the more energy that is lost as waste heat.
You learned to calculate efficiency when you know the useful output energy and total input energy of a system or device.
Our last lesson of this unit looks at comparing the benefits and drawbacks of different fuels—efficiency is one of the major considerations in this.
You learned to calculate efficiency when you know the useful output energy and total input energy of a system or device.
Our last lesson of this unit looks at comparing the benefits and drawbacks of different fuels—efficiency is one of the major considerations in this.
Watch This
What Is Efficiency? Efficiency Explained and Calculated © YouTube davenport1947
Watch this video for a detailed explanation of efficiency in a machine. It reviews the concepts of useful output energy, waste energy, and total input energy. A number of examples are also discussed, along with efficiency calculation.