Calcium Chloride based dessicant

In summary, the conversation discusses the idea of using solar air conditioning as a dehumidifier by using a suspension of Calcium Chloride and/or Lithium desiccant salt in oil to evaporate water and dry the air. The conversation is inspired by a video and notes that the Relative Humidity (RH) may actually increase due to the refrigerant being humidity itself.
  • #1
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Hello everyone.
I would like to experiment with solar air conditioning, wich may work as a massive dehumidifier.

I have the idea of making a suspension/solution of Calcium Chloride and / or some sort of Lithium dessicant salt in some sort of oil, run between a solar boiler to evaporate water,on the outside, and then, feed that moisture hungry suspension / solution into something like a big oil wet air cleaner, where an electric fan / turbine would cause suction of damp air into the filter, the dessicant fluid would dry it and it would come out of this very dry.

This video has inspired me:
 
Chemistry news on Phys.org
  • #2
Nicely presented, lengthy.

Note though that the Relative Humidity (RH) went UP (lower air temperature with the same amount of water vapor per volume of air).:doh:

Cheers,
Tom
 
  • #3
Yes, it's because the real refrigerant is humidity itself, just tries to fill the void left by what has been absorbed and outward driven by means of this device.
 

What is calcium chloride based desiccant and how does it work?

Calcium chloride based desiccant is a moisture-absorbing substance used to control humidity in enclosed spaces. It works by absorbing moisture from the air through a hygroscopic process, where the calcium chloride turns from a solid to a liquid as it absorbs water. This makes it highly effective in maintaining a dry environment and preventing mold, mildew, and corrosion.

What are the common uses of calcium chloride based desiccants?

Calcium chloride based desiccants are commonly used in packaging to protect goods from moisture damage during shipping and storage. They are also used in closets, basements, and other enclosed areas to control humidity and prevent mold and mildew. Additionally, they are used in technical applications such as in laboratories and for protecting sensitive electronic equipment from humidity.

What are the advantages of using calcium chloride based desiccants over other types of desiccants?

Calcium chloride based desiccants offer several advantages including a high moisture absorption capacity, which makes them more effective at lowering humidity quickly. They are also cost-effective and can absorb up to several times their own weight in water. Additionally, they work well at a wide range of temperatures, making them versatile for various applications.

Are there any safety concerns associated with calcium chloride based desiccants?

While calcium chloride based desiccants are generally safe for use, they can cause skin irritation and should be handled with gloves. If the liquid form comes into contact with skin or eyes, it should be washed off immediately to prevent irritation. It is also important to keep them away from children and pets, as ingestion can be harmful.

How should calcium chloride based desiccants be disposed of?

Disposal of calcium chloride based desiccants should be done according to local regulations. Typically, once the desiccant has completely absorbed moisture and turned to a liquid form, it can be disposed of in the general waste stream. However, it is important to ensure that it is sealed in a bag or container to prevent leakage and potential damage to other items or the environment.

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