4B40.31 - Radiation Cans
To demonstrate the effect emmisivity has on the absorbtion of electromagnetic radiation.
Gather Radiation Cans and thermocouples and laptop with software. Fill each "Radiation Can" with equal amounts of water or just leave filled with air. Each thermocouple has a rubber cork with a hole in it to be inserted to which goes ontop of the radiation can. Each thermocouple has a USB connector to be plugged into the laptop. A 500W lightbulb or greater and a variac are set up a fixed distance away from each "radiation can".
Start recording with the Logger Pro Software with a unique channel for each thermocouple being displayed. Turn on the lightbulb and run the demo until a siginificant difference in temperature is displayed between the radiation cans. approx. 25mins or Less.
Three aluminum cans each with a different color (black, gray, and white) are used to demonstrate the effect emmisivity has on the absorption of electromagnetic radiation and displayed on a live plot graph.