Lowering temperature with fan

[gr81]

I tried to lower tank temperature using fan blowing on watter surface. The results are great but I want to ask if it is abe to lower temperature under room temperature.
I never tried it because my room temperature is now about 24°C and I don't want risk.
At summer I have room temperature at 29°C. So I am interested if fan can cool it below room temperature and if yes, how much? Cooling using fan is quite quick, I lowered from 28°C to 24°C in a hour or two. Other question is, if that is good for shrimps.

[Jenova]

Hi there,

Depending on your fan, typically you can lowered by 2-4°C below the room temperature.

The problem with fan(s) is that you cannot have a constant temperature, it will tend to fluctuant. And you will have to top up your tank with water constantly due to evaporation.

IMHO,
John

[shrimp]

I can definately cool the temperture of the water. I will cool it from 2-3 degrees. Just make sure that the fan is able to ripple the surface entire surface of the water. For example if one fan i able to ripple the entire surface of the water then the cooling potiential of the fan is reached, therefore will not result in any significant deduction of temperture even if more fan is being used.

From my personal experience, the disadvantage of using a fan is the sound and the fast evaporating rate of the water in the tank. :)

[gr81]

I can definately cool the temperture of the water. I will cool it from 2-3 degrees. Just make sure that the fan is able to ripple the surface entire surface of the water. For example if one fan i able to ripple the entire surface of the water then the cooling potiential of the fan is reached, therefore will not result in any significant deduction of temperture even if more fan is being used.

From my personal experience, the disadvantage of using a fan is the sound and the fast evaporating rate of the water in the tank. :)
Agree, but better fan than nothing till I finish chiller.

[Jenova]

I can definately cool the temperture of the water. I will cool it from 2-3 degrees. Just make sure that the fan is able to ripple the surface entire surface of the water. For example if one fan i able to ripple the entire surface of the water then the cooling potiential of the fan is reached, therefore will not result in any significant deduction of temperture even if more fan is being used.

From my personal experience, the disadvantage of using a fan is the sound and the fast evaporating rate of the water in the tank. :)

Is the evaporation that caused the difference in temperature in my tank. Once the water is gone, the temperature will rise about 1-2 deg c. So have to monitor the water level closely. :(

I had gave up and bought a chiller. Hope I won't get a shock when I receive my bills. :D

John

[shrimp]

Is the evaporation that caused the difference in temperature in my tank. Once the water is gone, the temperature will rise about 1-2 deg c. So have to monitor the water level closely. :(

I had gave up and bought a chiller. Hope I won't get a shock when I receive my bills. :D

John

Haha that will depend on the make of your chiller. :p

[PapaFountain]

how much do these fans cost and do they use alot of electricity, any pictures of diy fan hoods?

[Redza]

instead of cooling the top of the tank, why not try shooting air at the sides?

[louuu]

instead of cooling the top of the tank, why not try shooting air at the sides?

cooling with a fan... no matter which surface it is applied... is dependent on the ambient temperature... i.e. the prevailing room temperature...
in other words... it's variable... one can only maintain the tank at x degreee C of F below the ambient temperature... which may or may not be the temperature one needs...

on the other hand... a chiller maintains a constant temperature (within the operating band) regardless of the ambient temperature... the only variable is the running time and hence our pocket $$$... :p:D

[Redza]

how much can a chiller cost?

[MikoChan]

Is the evaporation that caused the difference in temperature in my tank. Once the water is gone, the temperature will rise about 1-2 deg c. So have to monitor the water level closely. :(

I had gave up and bought a chiller. Hope I won't get a shock when I receive my bills. :D

John

Dont mind if i ask...where did you buy your chiller? :)