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Waterchiller Help

post #1 of 9
Thread Starter 
Alright to start off getting an a/c is easy, getting it empty'd and cut and filled again easy because my uncle owns and a/c buisness, but my question is , how much do you think it would cost to run a waterchiller a day electricty wise? Voltage?
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post #2 of 9
Quote:
Voltage?
Not to be rude, but that is not the kind of question you should be asking if you are considering building a water chiller, even with the help of an uncle. Voltage has no relation to the power drawn in this case, what you are asking is how much power will the compressor draw? Voltage is not a unit of power, nor of energy, rather it is a unit of electrical potential. Not to be rude, but as power and energy/enthalpy are central to the concepts of refrigeration, you may want to double check as to how much you are willing to put into this system, including reading about basic thermodynamics.

However, to answer your question:
Google the compressor, it will display the power draw at various evaporator temperature, it will likely be less power draw than the air-conditioner (before modding), as power consumption increases with evaporator temperature (generally)

Please keep us up to date with your project, I hope I did not come off to strongly, I just felt the need to say something!
To answer your question in a very inaccurate way... assume a couple hundred WATTS (W)
Perhaps also an easy way would be to do the following:
divide the ambient temperature by the temperature you plan to achieve, subtract that value from one (yeilding the maximum possible efficiency) then divide the load you wish to dissipate by that value...
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post #3 of 9
voltage is 115v ac in north america or 220v ac if ur in Europe or Asia operating cost depends on the A/C unit it self if its something around 5000btu it wont be so bad power bill wise
most ppl build chillers to run slight sub ambient so the unit will operate in short cycles so power consumption is not such a big problem , but if ur after sub zero and ur going to be running for hours on end power bill will hit ya where it hurts
Edited by shurik06_83 - 7/1/10 at 2:40pm
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post #4 of 9
Thread Starter 
Thanks guys, so im looking to have a 920 @4.5 at like 15c so that shouldn't be to much if it wont always be on tht long. Thanks guys, rep for everyone.
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post #5 of 9
if ur ambient is around 30c and u drop ur water temp to 15c u will get condensation with my chiller i found it best to stay only 10c below ambient as soon as i went about12c below i would start seeing condensation on really humid days

other option is to insulate all ur tubing water block and everything els
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post #6 of 9
Thread Starter 
Well im not to worried about condensation at that temp im in the west so humidity on a really humid day would be something like8%
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post #7 of 9
even still in the most hottest and dry place in the world if u run something 20c below ambient u will see condensation like nothing
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post #8 of 9
Shurik is right. Take a can of beer out of the refrigerator and.... you will see
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post #9 of 9
Quote:
Originally Posted by IOSEFINI View Post
Shurik is right. Take a can of beer out of the refrigerator and.... you will see
an empty can?
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