dehumidifer

[RedSkull]

I am planning a water cooled system and was looking into using a peltier as well. The only fear I have is obviously condensation. I have this old dehumidifer and was thinking of running the intake/exhaust fans of my case in circuit with it. This thing is huge! for a whole room, I would imagine it could make the inside of a pc dry as the sahara.

I was wondering if anyone had any experience trying this or thoughts as to whether this would actually reduce condensation amounts appreciably...

Thanks

[Tiger]

You would still have to go through the routine of insulation anyway, just in case. It's not that difficult, just takes time and patience.
I was really keen to get one of those units and recycle the air from a bong cooler through it to a) dry the air and make the bong super efficient and b) reclaim the water and send it back to the res.

[RedSkull]

hmm. thats an interesting idea as well...Do you think the dehum. would make the bong cooler efficient enough as to create a condensation problem?

[UserName]

if you make the case airtight you have no condensation problem.

Yess the bong would be more efficent. Ccondensation would only be slight, if even possable

[Tiger]

Originally posted by RedSkull
hmm. thats an interesting idea as well...Do you think the dehum. would make the bong cooler efficient enough as to create a condensation problem?
Evaporative cooling is limited by water saturation of the air (humidity) i.e. the air will continue to take on vapour to saturation. If you could get air dried to about 10% you are in the ball park to achieve temps 10C below ambient. I was even trying to design in a Pelt to condense the water off on the out cycle and then heat it on in cycle. The idea being to pull air out of the bong over the cold side of the pelt using a fan and then duct the air around to the fan cooling the hot side so that the air was re-heated prior to being fed back into the bong.

[UserName]

Is that 10% at room tempature of 10% of its potentail

Cause if you heat the air 50F it has a much higher potental to absorbe water, right?

so if ambient is say 70F and you dry it and heat it to say 110F and blow it thru a bong what could you get the temp too?

[Tiger]

Originally posted by UserName
Is that 10% at room tempature of 10% of its potentail

Cause if you heat the air 50F it has a much higher potental to absorbe water, right?

so if ambient is say 70F and you dry it and heat it to say 110F and blow it thru a bong what could you get the temp too?
That's 10% water content by volume in the air;
The air coming out of the bong is going to hit the cooling fins that are -20C and the air is going to be chilled rapidly. That is unsuitable for re-entry and has to be warmed. Whether the air will get significantly above ambient is questionable. I think the more important point is RH. The greatest cooling effect is from the energy given up by the coolant to effect vapourisation. It requires 500 time more energy to overcome the latent heat of vapourisation than it does to heat the same amount of water by 1C.