hi KL,
no water in the tub yet.. cause tomorrow den i will start the fridge.. so gonna pour in water tomorrow
about the temp... my father this morning went on to start the chiller.. pour water in the tub.. and set thermostat at 2. and guess what... my temp now is 24C with my 2ft fan still on..:eek:
now i turn off my fan.. set thermostat 1 and put lots of ice cubes iinside the water..
Venson,
You sound like an intelligent young man so I'm puzzled why you choose to dumb yourself down by spelling "then" as "den". Why make yourself look stupid when you are obviously someone who's quite bright? Don't tell me they didn't teach you punctuation and spelling when you were in school? Why do you put dots between all your sentences? Is that really the way you think?
Okay, now that I got that off my chest, here are a few pointers for you:
Firstly, you do not need the fans anymore. It won't help to lower the temperature further now that you have rig up your tank to the DIY chiller.
Secondly, as your bar fridge cools the tank, the tank is also, at the same time, warming up the fridge. With a normal fridge, the thermostat kicks in every now and then when the desired temperature inside the fridge is reached. With your setup, the thermostat will never kick in because the temperature inside your bar fridge will always be quite high, around 22 C.
This would mean that the compressor will never stop running. I'm not sure but I think the compressors of fridges are not made to run 24 hours non-stop.
I would suggest you put your bar fridge on a timer You can set it to stop running for half an hour after every 6 hours. Alternatively, you can set it to stop running between midnight and dawn when it's most cool.
Loh K L
Hi Loh,
I have posted this in another forum. But I thought we can discuss this here as well.
Do you think it will be a better idea to let the water flow into a reservoir(kept in the bar fridge), chill it within the reservoir, before flowing back to the tank? I know that for Arctica chiller, there is a reservoir within whereby the coil is inside. The tank water will circulate in this reservoir, chilled down by the coil, before returning into the tank. Can this principal works in this freezer / bar fridge DIY chiller?
This method will allow the tank water to mix freely with the water in the 'reservoir', thus doing away with the needs of the long coil of rubber tubing.
Of course it would be a better idea, Carl. In fact, that's how a real chiller actually works. The problem is how can this be done with a bar fridge? Let us know if you have any good ideas.
Loh K L
guys, i got bad news. My temperature now is 27C even though my fridge thermostat is at 5. i noticed that theres no cool air inside the fridge at all. maybe a little.. think the frdige is too old or lousy...
Now the thermostat is at full power of 7. if my tank still maintain at 27C, i will call this project a failure.
Hi Loh,
how about using those air-tight type tupperware as the reservoir? Remember the advertisement about this air-tight tupperware by the name 'Lock Lock' or something.
Drill 2 holes at the cover as the in and out of water flow. Then use those PVC connector (those with thread) to screw / connect through the holes for the pipings / tubes.
I even thought of using this as a CO2 diffuser at the same time.
What do you think of the idea?
It's still too early to come to a conclusion. It could be your fridge isn't in prime working condition but more likely, what's happening to your fridge now is what I've said earlier - As the fridge cools the tank, the tank warms the fridge. So in all probability, your fridge will feel rather warm when you put your hand inside. I believe, if you put a thermometer inside your bar fridge, that the reading there will be about 2 C degrees lower than the temperature of your tank.Originally Posted by EvolutionZ
guys, i got bad news. My temperature now is 27C even though my fridge thermostat is at 5. i noticed that theres no cool air inside the fridge at all. maybe a little.. think the frdige is too old or lousy...
Now the thermostat is at full power of 7. if my tank still maintain at 27C, i will call this project a failure.
One thing you should keep in mind is your room ambient temperature. You had good results the day before yesterday probably because it was a cool day that day.
Don't be too discouraged if things don't turn out the way you have expected. The system needs a bit of tweaking before it produces good results. I would say you should aim for a temp of 25 C. That should be low enough to keep the Crystal Reds happy. Any lower and you will have to deal with condensation which can be quite a bother after a while.
Loh K L
Hmm, I don't think it will work very well. Using an air-tight container isn't very much different from simply using hoses. If it's going to be a tupperware container, we might as well think about putting the whole cannister filter inside the fridge. Isn't it about the same?
Loh K L
If your freezer are able to chill the water in the plastic bag holding the coil of rubber tube, why can't the water in the tupperware be chilled, as effectively? If the water within the tupperware can be chilled like those in your plastic bag, then there's a difference between just using the tube from using the tupperware.
The water in the tube is always moving fast through it. And for every cubic of it, it is covered / or separated from the chilling air by a specific thickness of rubber. Whereas in the tupperware, the water is also in constant motion. But they are only separated from the chilling air merely by a thin layer of plastic (the tub). They are also in contantly mingling with their counterparts (other cold water), which might be colder then them. In a while, they all reach equilibrium coldness before returning to the tank.
Well, these are what comes to my mind. I'm really feeling itchy to test out the hypothesis. But I'm limited by space and energy at the moment to try it out. Maybe someone who 'shares' the same passion want to take up this challenge.
Haha, putting the cannister filter into the fridge is a radical idea. Who knows, in future, the product developer can convert the freezer into a filter as well...2-in-1.
hi KL,
you mention that the temperature in the tub should be around 2 degree lower than the water in my tank. i went on to take the temperature of the water in the tub. it was 27C, totally the same as my tank.
anyway.. base on my father.. he insisted that i should just leave the pipe inside.. without the tub of water.. so i let him do it..
turn the thermostat back to 3 instead of 7 at full power..
i'll see how it goes.
Hi Venson, do you mind trying what I have posted? As in the reservoir thingy.
Of course, got to make sure the fridge is working fine, with good chilling power. Otherwise we won't be able to conclude anything.
hi carlfsk,
im still in the mids of trying out my father's method.. but my frdige is not working well. as in the cooling effect is not good.
Venson,
Without immersing the hose fully in a tub of water, the whole system loses its effectiveness.
Imagine this - you have a can of coke. It's warm and you want to chill it. You can either leave the can of coke in your fridge or you can soak it in a tub of cold water. Which method will cool the can faster?
But no harm will come from experimentation. Let your father try it out and keep us posted on the results.
Loh K L
Oh, I forgot to mention....
If the temperature of the water in your bar fridge is the same as the temperature of your tank, it would actually mean you have a very efficient system. No heat is lost. But it could also mean your fridge isn't working at all.
Easy way to find out, turn off your filter. Wait an hour or two. The water in the bar fridge should become very cold, around 10 degrees C.
Loh K L
kl,
will try the turn of filter method tomorrow. thanks
my temp is now hovering around 24 - 25C.
and the temp in the tub is 23C. which is quite ideal now after i turn off my filter for 2 hours.
thermostat is set at 2.
from 10.30 am till now. my temp is hovering around 24 - 25C.
Hi,
Anyone out there try a DIY uisng cold water dispenser? If yes pls advise how the set-up is done.
I happen to get one unit of cold water dispensor. It has a reservoir tank. Power is 60 watts. It can chilled the water in the reservoir up to 5.5 deg C with thermorstat setting at 4 (max.
I want to try if I can chilled the tank to 24 Deg C. So try to get more ideas before I start.
Koh Heng.
Koh Heng,
That a simply good idea!
But where do you get this cold water dispenser? i will lay my hand on it., heard that unit is a good conserve electricity!
Eddy Planer,
I got it from my company as faulty unit, leakage. Fixed the problem and now trying to get some parts to start the construction.
Similar type of unit should be availablel in Singapore. It is just an auto water dispensor with hot and cold or cold water only. You can see them in school, hospital and factories, but with various size.
Koh Heng
Posting Permissions
Reply With Quote
Bookmarks