term2 Working principle of Humidifier and Dehumidifier

The natural stalactite growth is quite slowly. While consider the factors which can accelerate the crystallization process, I have studied the working principle of Humidifier and Dehumidifier.

Humidifier
The humidifier can use electric heating elements to heat water and generate steam for humidification. When the humidifier runs, water intake valve opens and water enters the stainless steel container. When the water reaches the certain level, the interior heating elements are energized and heat the water. Along with the operation process, the water level drops and the water intake valve open again to refill the container and continue the production of the steam. As a result, the water vapour increases the humidity level in the space.

Dehumidifier
Air can only hold a certain amount of moisture for a given air temperature. If the air is saturated with moisture and the temperature in the space is lower, it will lose moisture because it cannot hold as much moisture as it did at the warmer temperature (changing from vapor to liquid). An example is the mirror in a steamy bathroom with the shower running.

A Dehumidifier contains cooler, fans, water container, scaffolding and controller. When the fans rotate, the outside air can be pumped into the cooler. Because the temperature in the cooler is lowered below the dewpoint condition, the air cross the cooler will lose moisture and water can be collected in water container. Finally, the humidity level in the air can be decreased.

To the project, I want to design a 'humidity system' which use the working principle as Humidifier and Dehumidifier. While the Forming System creating the structure inside the cave, the Humidity System can condense water from outside air and evaporate the water to increase the humidity level in the cave and accelerate the crystal formation. On the other hand, if the Forming System has completed its work, the Humidity System can condense water from inside moist air and discharge water into outside. This can help to decrease the humidity level.