Raspberry Pi Forums

I am thinking about making something that will turn down the temperature here in the house.
The only problem I have is that I have a fan and a Raspberry pi but that will only blow hot air. Maybe there is some new technology that will help me do this.
Of course I could always build a big solar helicopter and fly to someplace cooler.
Sometimes my mind wanders.
Ken

I've heard some reports of encouraging results from equipment based on the expansion of gases.

I eat a lot of beans. Will that help?

drgeoff wrote:I've heard some reports of encouraging results from equipment based on the expansion of gases.

drgeoff wrote:I've heard some reports of encouraging results from equipment based on the expansion of gases.

lol!

danjperron wrote:https://robotfun.wordpress.com/2011/12/21/swampcooler/

Or the raspberry pi blog!
But humidity there is ~100%,which means cooling apparatus based on the evaporation of water into an already saturated atmosphere will not work well.

Humid air that is blown across pipes that have been chilled internally by the expansion of gases has the effect of both cooling and making the air less humid (while building up frozen condensation on the external surface of the internally chilled pipe)
So, "air conditioning" would probably work well, but "bog coolers" might not work as well.

I think the best way to do it would be to get some imps. Approximately 4" in height. Create a hybrid air / oxygen propulsion system that can launch them high into the stratoshpere with thermos flasks 2/3 filled with water with the lids off.

At perihelion, the water in the thermos should be frozen, place the lid on the flask and allow them to fall back to earth carrying their frozen water cargo (perhaps provide parachutes for the final 100 meters or so)
The frozen water, when placed in front of a fan blowing hot ambient air should sufficiently cool the air enough to prove an increased sense of comfort to those who are perspiring in the heat.

morphy_richards wrote: Or the raspberry pi blog!
But humidity there is ~100%,which means cooling apparatus based on the evaporation of water into an already saturated atmosphere will not work well.

Humid air that is blown across pipes that have been chilled internally by the expansion of gases has the effect of both cooling and making the air less humid (while building up frozen condensation on the external surface of the internally chilled pipe)
So, "air conditioning" would probably work well, but "bog coolers" might not work as well.

I think the best way to do it would be to get some imps. Approximately 4" in height. Create a hybrid air / oxygen propulsion system that can launch them high into the stratoshpere with thermos flasks 2/3 filled with water with the lids off.

At perihelion, the water in the thermos should be frozen, place the lid on the flask and allow them to fall back to earth carrying their frozen water cargo (perhaps provide parachutes for the final 100 meters or so)
The frozen water, when placed in front of a fan blowing hot ambient air should sufficiently cool the air enough to prove an increased sense of comfort to those who are perspiring in the heat.

In my experience Imps are unreliable, you may find that instead of holding the frozen water in front of the fan they drop it upon you on the way back down.

This can be painful and the direct cooling effect of the frozen water against your skin can cool you too much.

You can put some big ice cubes in a box. Then use a fan to blow the cool air out to your room. It will Make your room cooler. But I think it is difficult to maintain this device

I'd go with the solar helicopter