Swamp Cooler

Each group needs:

• cardboard box (to fit around a small electric fan)
• paper towels, three-layers thick to cover box bottom
• waterproof glue, such as hot glue, epoxy or gorilla glue or packing tape
• Cooling Load Analysis and Computation Worksheet (PDF), one per person
• Psychrometric Chart (PDF), one per person

For the entire class to share:

• pencil
• scissors, to cut cardboard
• stapler
• compass, to mark curved lines to cut in the cardboard
• small electric fans (can be shared by several groups)
• adjustable water spray bottles