Fans

[izzat]

Hi...

jus wan to ask tat if i use more than 1 fan for a 2ft tank...
will the temp drop lower than jus using 1 fan?
if i does drop...how low can it go?

keeping moss and shrimps in the 2ft tank...
i dun mind topping up the water every now and then as long as the tank can be at a very low temp...

[Aeon]

I think there's a limit to how much heat can water lose through only surface evaporation... maybe one fan cool the water one fan cool the lights?

[izzat]

[quote:aaf3422745="Aeon"]I think there's a limit to how much heat can water lose through only surface evaporation... maybe one fan cool the water one fan cool the lights?[/quote:aaf3422745]

okie bro...

think i get wat u meant...
1 i use for the tank...
the other to blow off the heat tat is emited from the lights right?

[Aeon]

Ya. Just a suggestion. I do cooling for PC, 1 to bring cool air into the case, 2 to bring cool air to the cpu and graphics card and 2 to draw the hot air out from behind.

[izzat]

okie...

thanks for ur suggestion bro...

[Aeon]

I'm planning on a DIY cooling fans project. going to use PC PSUs to suuply the 12V after I saw sleppy_lancs's setup.

Drawing board time!

[Sleepy_lancs]

Laughs... My secret is out

[Aeon]

lol! ok i know too much, it's time for me to die. lol!

[vinz]

Secret meh?




Sleepy_lancs, got pics of your setup?

[Green Baron]

[quote:4c6bfbcf="aCe^bOwleRz"]Hi...

jus wan to ask tat if i use more than 1 fan for a 2ft tank...
will the temp drop lower than jus using 1 fan?
if i does drop...how low can it go?[/quote:4c6bfbcf]
1 fan about 27C. Some people manage to bring the temp down to 25/26C with more than 1 fan.
Lower temp=more evaporation=more frequent top up

keeping moss and shrimps in the 2ft tank...
i dun mind topping up the water every now and then as long as the tank can be at a very low temp...

For moss and shrimp, 27C is good enough.

[victri]

I know this secret too...

Almost forgot to add:
Tank = 3ft
Temp without fans 29-31C
Temp with 2 fans 26-27C

[budak]

I run the OceanFree two fan AC unit on my 2 ft tank (72W), placing the fan parrallel to the water surface (3-4 cm above) and the temperature's around 26-27C. Mosses are fine.

[Aeon]

I have a few 350W Power Supplies lying around, are those overkill?? I mean I'm not powering a Pentium 4 but DC fans, so would using 350W = more power usage? higher bills?

[crandf]

multiply your fan voltage with your fan current, including your power supply fan as well. Thats the wattage you are using.

[tawauboy]

[quote:8a95e681cd="Aeon"]............... so would using 350W = more power usage? higher bills?[/quote:8a95e681cd]

nope. 350w is the max output of power supply. consumption depends on the load (fans).

[Aeon]

Yeh thanks!

Ok, now I have the PSU and fans, which part should I short so as to not use a switch?

*edit* it turns out my PSU was dead... crap. anyone knows which shop in Sim Lim sells cheap PSUs??

[Green Baron]

[quote:c32faaeaeb="Aeon"]Yeh thanks!
Ok, now I have the PSU and fans, which part should I short so as to not use a switch?
*edit* it turns out my PSU was dead... crap. anyone knows which shop in Sim Lim sells cheap PSUs??[/quote:c32faaeaeb]
Why bother with the bulky PSU ? Just get a AC/DC 12V transformer from hardwre shop. <$16.

[Aeon]

Because I have some PSUs at home, so can save the extra money. Now can't find the other PSUs and the only one is dead... lol!

Going to get an adapter maybe.

[victri]

I chose not to use an adaptor so that I can have the option of adding more fans and/or to power other stuff without worrying about the adaptor burning out. There are tons of pc accessories that can be adapted for use with our tanks.

Aeon, I believe yours is an ATX psu that requires shorting for it to power up. Older AT psu comes with a ready switch. Do a search on "power atx psu without motherboard" and you should see many DIY pc mod articles on that topic.

[Aeon]

I just installed the fans. pics later!! charging my DC