- Apr 2, 2002
EDIT: Forget it. I'm wasting my breath. I'm unsubscribing from the thread anyway.
If I stick my nose in front of that air flow it might make a difference to me and being able to actually breath. But then I didn't expect much from Peltier cooling. I was hoping someone knew of something more efficient that actually has ever been downscaled. A full blown air conditioner system can't be realistically run through such small power, but then I don't want to cool a whole room or even a small tent by more than a few degrees maximum. I just want to make enough difference for it to be tolerable. Failing that, my nose sort of closes up when it gets too hot and stuffy (and dry is almost as bad, but if it's actually dry I could rig up something evaporative if it came right down to it and as far as I know it's only ever dry in here when the house's heat has been running a lot) so even just having a slightly cooler stream of air coming from somewhere would be nice. I was just hoping I could find something better than a Peltier cooler to do it. And really, there's no reason there couldn't be, say, a really tiny compressor type thing that was intended for something really tiny such as inside a computer system (I still say they actually DID make such a thing once and I saw it on Newegg and almost bought it all those years ago.)A single small peltier is going to be useless for use when blowing air across a heatsink to even make a difference in the air temperature coming out the other side.
I assumed this was a given. I'm aware of the principles of heat generation and how pretty much any machinery no matter how efficient will produce heat in its process (and why if you opened a refrigerator door and left it open the room would ultimately get hotter and hotter instead of cooler.) The idea was to have some sort of seal with one side sticking out and the other on the inside. A Peltier cooler admittedly makes this easier. If you want to switch thermal flow you just flip the polarity. For heating it might actually work a lot better with that really high level of inefficiency in fact.And unless you exhaust the hot air outside of whatever you are in, it is going to heat up the ambient temp a lot more than the miniscule amount of less hot air it will make.
Last time this happened humidity was definitely an issue. (I mentioned this already.) I thought about evaporative cooling -- it's definitely the simplest way to go. But as you reach that point of saturation it starts to get less and less effective and, more importantly, ultimately just makes it feel more stuffy.It would be a whole lot more efficient to use an evaporative cooling tower unless you are in a super humid area.