Light Up Your Life
Figure 1. Self-ballast compact fluorescent lamps (CFL), such as this spiral or "ice-cream cone" type are often used to save energy.Copyright Indiana Utility Regulatory Commission http://www.in.gov/iurc/2340.htm
Students are introduced to the correct technical vocabulary for lighting, which is different than layperson's terms. They learn about lamp (light bulb) technology and how to identify the various types of lighting in their spaces. They are also introduced to lighting controls as a means for saving energy- reducing costs, human energy consumption, and greenhouse gas emissions on the environment. Using an accompanying worksheet, students embark on a guided audit in which they survey the lighting in their classroom and identify the potential savings from using controls.
Illuminating engineering is a subset of the field of architectural engineering that is focused on the engineering of lighting systems and their controls. These engineers design the various types of lamps (light bulbs) that are sold for consumer use, the light fixtures they go into, the systems that light various spaces, and the control systems that save energy and provide maximum flexibility for users. Illuminating engineering is a mix of art and science since it is linked so strongly to subjective personal experience, perception and engineering issues. Without artificial lighting, our world would be far less interesting and even less safe. Thanks to engineers, we do not have to worry about altering our lives due to darkness. You might say that engineers help light up our lives!
After this lesson, students should be able to:
- Identify the different types of lamps (light bulbs) that are typically used.
- Describe how those lamps (light bulbs) generate light.
- Calculate energy savings from lighting controls.