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Spartacus51
12-19-01, 12:18 AM
You guys are killing me. Three weeks ago I was your average semi-geek. I found this place and I'm an instant total nerd-addict. I'm sitting here looking at a plain jane case and already envisioning what could be the coolest mod case... anyway, that's in the mod thread.

My question for everyone here is about a double bong setup. I've been reading a lot of the threads and also all the info on overclockers.com about bongs. after reading the 12" bong article I liked that idea, I'll be off to college next year and I'm not sure how I feel about lugging a 4'-5' bong with me. But how much cooling am I sacrificing?

Solution: 2 Bongs. I don't know how much room I'd actually save, but the way I see it 2- 12" bongs is still less than 1- 4'. Probably as efficient or more, correct? I see a few advantages in this...

1. System will hold more water, thus allowing for less frequent refilling (I know that I will lose the water quicker as well, but additional line still allows for more water... overall I think the gain in capacity will overcome the additional loss)

2. Added cooling. I'm not entirely convinced a 1' bong is capable of the cooling of a 4', however if it's close the second ought to cool further, correct? The problem isn't a limit in the evaporation needing the longer distance to reach a low temp. it's it takes that much evaporation to keep dropping in temp, correct? (Not sure if that makes total sense...) Reworded... Evap of 40C water (as an example) lowers by 8C. Evap of 32C water drops additional 4C-8C right? Or does all the cooling have to occur at once?

3. I like my setups symetrical, so if I can match bongs I think it'll be prettier (maybe not alone but my IDEA is to make clear bongs with a blue colored water with blacklights lighting the resevoir (and if strong enough the cascading water as well. This could, in situations where bright light is not required, be enough to light my room to the point of being able to drink some beers in it...)

Let me know what you all think, am I on to something, or have I gone stark raving mad (if that's the case I blame all of you. :) ) Or am I onto something AND stark raving mad? :beer:

plague
12-19-01, 01:00 AM
well its obviously the forums fault youre even thinking this. just think of what you would have thought a while ago when someone tried to explain to you that they were gonna cool their computer with a big water bong!?! anyway, im no expert, and im sure someone who knows more than me will chime in, but I think that the performance gain in having 2 bongs wouldnt be worth it. bongs already cool the water to below ambient when done correctly. and youll just evaporate water twice as fast. and then theres the space issue, if youre just going off to college next year, youll be living in a dorm, right?? well hate to tell you but dorms arent really palaces (i just got home from my first semester in college). so my advice, instead of building 2, just make one wider and as tall as you can stand it.

Diggrr
12-19-01, 01:40 AM
Assuming you have a mid-tower, (lan partying) why not just make a two foot bong attached to the right hand side of the computer.
You're not going to open the backside of the mobo much (if ever).
Make a sheet bong using plexiglass. The clear plexi and the blue water would make a killer waterfall with the uv, covering the right side of the puter. Dual fans, two of those tiny shower heads.

Anyway, the point being, you can come up with more portable ways of making a bong. Trust me, you'll grow to hate bongs if you drag around two bongs, monitor, cpu, keyboard etc....everytime you wanna go fraggin. And your dorm will be too small to host one on campus. (ever see a bed in a phone booth? you will)

A porta-bong is a great idea though, just keep hackin' at it.
By the way, adding bongs in series would give diminishing returns as it's the heat in the water that makes it evaporate so well in the first place. You can't get below wet bulb temps.

Crash893
12-19-01, 02:31 AM
i dont have one but from what i understand a bong is probably not a good idea at college ( unless you know who your roomate is) plus its not very mobile.

Wonko The Sane
12-19-01, 08:37 AM
HEY!, i was toying with the idea of using dual bong coolers in a custom lexan case. If you try it, let us know the results, i prolly won't be building mine for a while.

SavageHenry
12-19-01, 09:19 AM
First, welcome to the forums, Wonko.

Another problem with two bongs: twice the pressure drop in your coolant. Unless you go with two pumps, or a VERY high-flow pump, you'll be taking a huge flowrate hit in your coolant by putting two bongs in series.

Wonko The Sane
12-19-01, 11:02 AM
if I'm not mistaken, it wouldn't be possibe to do 2 in series with only one pump... maybe 2 in parallel with one high flow pump.

Spartacus51
12-19-01, 11:05 AM
I'd already planned on dual pumps, but the more I think about it the more I agree with you all... just going to have to find a good way of setting up one.

Diggrr
12-19-01, 11:37 AM
I believe the originator of the bong used one only about 2' tall, and the one footer looks like it works well too. (the scotch-brite one in the how-to's here) I don't think you have to worry so much about height, they can get rid of alot of heat as evidenced by their performace when cooling a peltier.
A good high flow rate pump is probably going to give the best results at a short height, cause the water is allowed to pump through so many more times per hour, the processor can't over-take it.

And make sure everyone know the rules about dumping beer in it...just explain to your room-mate that you've got super-glue, and he's gotta sleep sometime...:D