1. Is it possible to store cool air inside a small compartment wihtout any transfer of heat to surroundings for a long time say 1 day?

2.

3. You mean transfer of heat from surroundings. Insulation helps, as in a common refrigerator. A vacuum is better.

EDIT: Oh it's just cool air you want. That's a weird question, because air's mass is miniscule besides the solid lining around the air. The problem really is to make that lining cold.

4. Originally Posted by Pong
You mean transfer of heat from surroundings. Insulation helps, as in a common refrigerator. A vacuum is better.

EDIT: Oh it's just cool air you want. That's a weird question, because air's mass is miniscule besides the solid lining around the air. The problem really is to make that lining cold.
Yea, I need to store the cool air in a storage tank and this cool air should not be dissipated to the surroundings.

5. I am planning to make use of this cool air in the storage tank to cool the hot air which are isolated from surroundings

6. Place a cold brick in the tank. Perhaps that's too crude, but, you get the idea.

7. Originally Posted by Pong
Place a cold brick in the tank. Perhaps that's too crude, but, you get the idea.
I dont get your point. Can you pls explain it in detail.

8. Well, first we need to flip our thinking about cold around. It's really the absence of heat we want. Heat's the thing we're working with.

Got that?

9. Originally Posted by kraman.157
I am planning to make use of this cool air in the storage tank to cool the hot air which are isolated from surroundings
You don't want to store air, you want something with far more thermal mass, or (better yet) something that undergoes a phase change. Ice, for example, is a good way to store "cold."

10. Thermodynamics and as far as the theory goes the awnser is no because no system we know of has thus far been 100% efficient. So technically speaking there is always some but small losses to environment.

11. If you are triing to store something that will hold a thermal mass, few things are a better medium then water. If you can cool the water freely the specific heat content will hold enough thermal mass to cool a huge volume of air by relation. And water is easily manipulated through heat exchangers.

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