Cooling air from pump....

[firsttimeARE]

Regardless if the pump adds heat or not which im sure it does add some...starting at a higher temperature just means its gonna be hotter.

 

[Vumar]

Regardless if the pump adds heat or not which im sure it does add some...starting at a higher temperature just means its gonna be hotter.

Not to mention the time the air bubble is in contact with the water for all of 2 seconds? Water has a higher specific heat than air/oxygen and thus takes many more calories to cool the water only using air.

 

[jijiandfarmgang]

lol at that ecoplus commercial air pump description. (the quiet part)

A while ago, I had the 35 watt model I think, thats the one I used installed outside in winter.

Now Im not doing 100 percent hydro, just a small rdwc setup. No air pumps.

@legallyflying I think somewhere took his failed ecoplus apart and its junk.

Those ecoplus's run hot, not sure if its the friction in the pump or what.

If your going to use an air pump spend the extra cash and get a pondmaster.

I use a jbj chiller. If you need one, they aren't cheap, but super nice.

- Jiji

My cooling system is kind of different but I have a 24k mini split, and a 1400 cfm exhaust fan

 

[ttystikk]

Not to mention the time the air bubble is in contact with the water for all of 2 seconds? Water has a higher specific heat than air/oxygen and thus takes many more calories to cool the water only using air.

NO. Keep in mind that water evaporates, which is a HUGE cooling effect. That's why my hot tub needs a 30A@240V hookup, just so the heater can keep pace with the cooling effect of the jets.

 

[ttystikk]

lol at that ecoplus commercial air pump description. (the quiet part)

A while ago, I had the 35 watt model I think, thats the one I used installed outside in winter.

Now Im not doing 100 percent hydro, just a small rdwc setup. No air pumps.

@legallyflying I think somewhere took his failed ecoplus apart and its junk.

Those ecoplus's run hot, not sure if its the friction in the pump or what.

If your going to use an air pump spend the extra cash and get a pondmaster.

I use a jbj chiller. If you need one, they aren't cheap, but super nice.

- Jiji

My cooling system is kind of different but I have a 24k mini split, and a 1400 cfm exhaust fan

I have the 3hp one from them and the fucking heat exchange tank is a 'non serviceable part', meaning there is no replacement for it.

JBJ IS FUCKING JUNK!

Y'all want a purpose built chiller and accessories for indoor climate control?

Surna.com

 

[ttystikk]

Blades(fan blade..propeller blade...any blade) are symmetrical...aerofoils are not

This is an untrue statement. Take it from a guy with airframe and powerplant mechanics training. A fan is simply a wing designed to convert spin into lift. Simple fanblades might be a stamped piece of metal, but aircraft props- same thing, just more horsepower- are most definitely not symmetrical.

 

[ttystikk]

4000btu per 1k. get a 12-14kbtu

I'd go with 6k BTus per, in order to have headroom for excessively hot days, etc. It won't pull more power over time since it will be able to shut off more often.

 

[redi jedi]

This is an untrue statement. Take it from a guy with airframe and powerplant mechanics training. A fan is simply a wing designed to convert spin into lift. Simple fanblades might be a stamped piece of metal, but aircraft props- same thing, just more horsepower- are most definitely not symmetrical.

We made fans long before we made wings....a windmill for example

 

[ttystikk]

We made fans long before we made wings....a windmill for example

Ok, but the asymmetrical airfoil propeller is much more efficient, and indeed was a necessary advance before powered flight could happen.

 

[Vumar]

We made fans long before we made wings....a windmill for example

Technically..... and historically we've made "wings" in prehistoric cultures for ritual and ceremonial purposes. Might I also add that this "wing" has been made long before we made fans

 

[Vumar]

lol at that ecoplus commercial air pump description. (the quiet part)

A while ago, I had the 35 watt model I think, thats the one I used installed outside in winter.

Now Im not doing 100 percent hydro, just a small rdwc setup. No air pumps.

@legallyflying I think somewhere took his failed ecoplus apart and its junk.

Those ecoplus's run hot, not sure if its the friction in the pump or what.

If your going to use an air pump spend the extra cash and get a pondmaster.

I use a jbj chiller. If you need one, they aren't cheap, but super nice.

- Jiji

My cooling system is kind of different but I have a 24k mini split, and a 1400 cfm exhaust fan

Any idea on how much you paid for the 24k mini split? And how big is your room? Running a big cfm exhaust fan!

 

[jijiandfarmgang]

Any idea on how much you paid for the 24k mini split? And how big is your room? Running a big cfm exhaust fan!

I think 1800? Its a frederiech breeze. DIY, I wouldn't reccomend it.

room size about 13x20? Its veg and flower combined.

actually I must be slipping, its a 2050 cfm fan. Vortex vtx 12

- Jiji

 

[firsttimeARE]

I'd go with 6k BTus per, in order to have headroom for excessively hot days, etc. It won't pull more power over time since it will be able to shut off more often.

thats why i told him to use a 12-14k btu so its not running at max capacity when lights are on.

I think that 4k is for non air cooled lights anyways.

 

[redi jedi]

Technically..... and historically we've made "wings" in prehistoric cultures for ritual and ceremonial purposes. Might I also add that this "wing" has been made long before we made fans

Im talking about a wing that actually flies.

 

[ttystikk]

Im talking about a wing that actually flies.

This conversation started about pressure.

Wings create lift by reducing pressure in the air passing over them relative to that of the air passing beneath. Whether that wing is stuck on a fuselage or to a hub makes little difference.



This is a photo of an Airbus A380 at takeoff in very humid conditions.

See the 'cloud' of condensation extending completely across the wing? It's visible because the wing has reduced air pressure in that area so much that it crossed the dewpoint.

EVERY wing does the same thing to a greater or lesser extent based on the efficiency of its shape.

The basic difference in engineering between gases and liquids is very simply that gases are compressible fluids, whereas liquids are not.

In the pic above, you can visually see the reduction in pressure and resultant drop in temperature over the wing.

Please look up 'gas law' for formulas and in depth discussion of heat vs pressure when working with gases.

Or, try this at home; place a cooling fan upstream of a vented hood with a running lamp in it, the bigger the better. PUSH that cooling air through, and measure the temperature of the exhaust air and the hood. Your hand will tell you both are hot! Now, flip that fan around so it SUCKS the air through the hood. Hood AND exhaust are much cooler than before!

Why? Gas law, and compression heating.

 

[redi jedi]

My point is you dont need wings/aerofoils to create thrust...a simple blade will do.

I've never taken apart a jet engine but I have installed and maintained steam and gas turbines used in electrical generating stations. Those places also use many different types of fans, pumps and compressors.

Put this in your pipe and smoke it...lol...Steam turbine blades are about the size of the wings on a cessna...So lets say I swapped the wings for turbine blades, do you think it would fly?...lets just say the blades weigh the same as the wings.

 

[ttystikk]

My point is you dont need wings/aerofoils to create thrust...a simple blade will do.

I've never taken apart a jet engine but I have installed and maintained steam and gas turbines used in electrical generating stations. Those places also use many different types of fans, pumps and compressors.

Put this in your pipe and smoke it...lol...Steam turbine blades are about the size of the wings on a cessna...So lets say I swapped the wings for turbine blades, do you think it would fly?...lets just say the blades weigh the same as the wings.

No, but it would corkscrew like a motherfucker!

 

[ttystikk]

My point is you dont need wings/aerofoils to create thrust...a simple blade will do.

I've never taken apart a jet engine but I have installed and maintained steam and gas turbines used in electrical generating stations. Those places also use many different types of fans, pumps and compressors.

Put this in your pipe and smoke it...lol...Steam turbine blades are about the size of the wings on a cessna...So lets say I swapped the wings for turbine blades, do you think it would fly?...lets just say the blades weigh the same as the wings.

By your definition, the blade BECOMES the working airfoil.

 

[Alaric]

Hello everyone, I was just wondering if anyone has ever tried running the hoses from the air pump through a cooler of ice water before they go into the bucket? It seems to me that you can insulate the bucket all you want but ultimately you will never get the water cooler than the air your pumping in. I have read other threads on cooling but I just need a few degrees cooler. Don't want to buy a fridge or water chiller or any of that stuff, just something simple and small. What do you think?

What max temps are your nutes now?

I tried the small frig thing once----waste of time.

A trick I heard once: If you have an air conditioner close by, and if practical, place the air pump in front of the cool air vents.

A~~~

 

[Final Phase]

You may find cooling the way I cool an EzClone down to keep the water temps down.
I freeze water bottles and put in 8 at a time. The pump constantly warms the water and needs chilling down at least
one time every day. I do it twice a day when I want the roots to pop in 8 to 10 days.

I don't know how often you would have to mess with changing frozen bottles... might be way too much trouble.