Question

Zero Energy Cool Chamber is based on the principal of

• A. Evaporative temperature
• B. Evaporative cooling
• C. High pressure temperature
• D. Low pressure cooling

Hint:

The word "Zero Energy" is a clue. It means the system doesn't use electricity. Evaporative cooling is a passive cooling method that doesn't require external energy input, unlike conventional refrigeration. Earthen pots (matkas) also work on the same principle.

Answer 1

The Correct Option is B

Step 1: Core Idea:
The question seeks the scientific basis of a Zero Energy Cool Chamber (ZECC).

Step 2: How it Works:
A Zero Energy Cool Chamber is an inexpensive on-farm storage made from porous materials like bricks and sand. It's a double-walled brick structure with sand between the walls. Regular watering keeps the sand moist. Evaporation of the water uses energy, drawing it from the surrounding area. This heat removal lowers the chamber's temperature. This cooling method, using liquid evaporation, is called evaporative cooling. It's similar to the cooling effect of sweat.

Step 3: Conclusion:
The Zero Energy Cool Chamber utilizes evaporative cooling.