Air well (condenser)

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/air-well-condenser

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the scientific principle?Condensation of atmospheric water vapor onto surfaces cooled below the dew point
2. What is the historical development?Transition from less effective high-mass designs to more successful low-mass, radiative collectors
3. How does an air well make water from the air?It cools a surface below the dew point, so warm humid air touching it can no longer hold all its water vapor. The vapor condenses into tiny droplets that gather on the surface and then flow into a container.
4. Why do air wells work better at night?At night the sky is cooler, so the air well’s surface can radiate heat into the night sky. This cooling lowers the surface temperature, making it easier for water vapor to condense.

Dew Point: The temperature at which air becomes saturated with water vapor and condensation begins.
Radiative Cooling: The process by which an object loses heat by emitting thermal radiation.
Nucleation: The initial stage of condensation, where tiny water droplets begin to form on a surface.
Emissivity: A measure of a material's ability to radiate thermal energy.