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That Guy
Registered: 08/12/08
Posts: 4,058
Loc: Southwestern US 
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 Re: working on my cool idea  [Re: mhbound]
#244310 - 06/29/09 07:19 PM (15 years, 9 months ago) |
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well just oversize...assume that the bulb wattage is the heat load...and just buy a cooler that can handle that cooling capacity...that way you know you have plenty of cooling power and can just adjust the cold water flow through the radiator to regulate the temp...also you may want to think about a way to collect the condensation that may form on your radiator...as this may cause fungal growth in ur box.
just for reference...
1 Ton of Cooling = 12000 BTU = 3516 Watts
if you need help with the calcs ill be glad to assist...i love stuff like this...and if not i will enjoy watching the progression of this cool idea.  
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“The Universe is under no obligation to make sense to you” -NDT
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Data
That Guy
Registered: 08/12/08
Posts: 4,058
Loc: Southwestern US
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Re: working on my cool idea [Re: mhbound]
#244673 - 06/30/09 03:56 PM (15 years, 9 months ago) |
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Well...BTUs are actually an amount of energy...its SI equivilent is the kilowatt-hour...and power companies bill on total amount of energy used (kilowatt-hours)
Therefore, Watts are a rate unit (joules per second), as are BTUs per hour. So when you are looking at heating and cooling...you want to know the maximum rate at which the light can produce heat (Watts) and the rate at which the cooler can remove heat (either Watts, BTU's per hour, or tons cooling)
Also is there any data available for that radiator as far as surface area and material? I really need to know that in order to help much...as the cooler itself can be awesome...but if you cant absorb enough heat at the radiator then it wont matter.
I'll be on later to answer any more questions and to see if i can help further
Peace
agmotes165
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“The Universe is under no obligation to make sense to you” -NDT
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Data
That Guy
Registered: 08/12/08
Posts: 4,058
Loc: Southwestern US
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Re: working on my cool idea [Re: mhbound]
#244703 - 06/30/09 05:24 PM (15 years, 9 months ago) |
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how tall will the box be?
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“The Universe is under no obligation to make sense to you” -NDT
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Data
That Guy
Registered: 08/12/08
Posts: 4,058
Loc: Southwestern US
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Re: working on my cool idea [Re: yellownotepad]
#245099 - 07/01/09 09:43 PM (15 years, 9 months ago) |
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yea dude that looks good...and these specs are based on a 10oC delta T so if you are going for a target temp of 80o F...you would only need 72oF water temps...and if you can get the water temp lower than that then you dont have to run as high a flowrate through the radiator...so using that...you should figure out the wattage of the 2 fans you are gonna use (volts times amps) and figure out the wattage for any other fans you are gonna be using...and add that to the 250W lighting load...and then size ur pump for that amount of heat dissipation according to the charts...let me know what size tubing you are gonna use for the coolant lines and how many feet of tubing in the whole loop, then i can figure out what size pump you would need...and if you can find a pressure drop in the water lines for the radiator that would make that calc much more accurate...
Also...you will need a water cooler/refridgerating unit that is rated for the same combined wattage that you will calculate in the previous paragraph...like lights+fans wattage.
let me know...i love doing this stuff 
agmotes165
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“The Universe is under no obligation to make sense to you” -NDT
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Data
That Guy
Registered: 08/12/08
Posts: 4,058
Loc: Southwestern US
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Re: working on my cool idea [Re: yellownotepad]
#245165 - 07/02/09 06:51 AM (15 years, 9 months ago) |
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that would work fine...just make sure you have a low enough external air temp to handle the heat disapation...im sure 2 radiators would be fine though
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“The Universe is under no obligation to make sense to you” -NDT
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Data
That Guy
Registered: 08/12/08
Posts: 4,058
Loc: Southwestern US
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Re: working on my cool idea [Re: Data]
#247834 - 07/09/09 10:59 PM (15 years, 8 months ago) |
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whatever became of this?
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“The Universe is under no obligation to make sense to you” -NDT
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Data
That Guy
Registered: 08/12/08
Posts: 4,058
Loc: Southwestern US
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Re: working on my cool idea [Re: yellownotepad]
#247861 - 07/10/09 06:26 AM (15 years, 8 months ago) |
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what are you missing on your design? It could be as simple as an oversized water cooler...a reservoir...and a fountain pump...with some sort of throtlling valve in the water line to control the flow of cool water into the radiator...and then adjust the valve position to get the desired temp.
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“The Universe is under no obligation to make sense to you” -NDT
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Data
That Guy
Registered: 08/12/08
Posts: 4,058
Loc: Southwestern US
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Re: working on my cool idea [Re: yellownotepad]
#247942 - 07/10/09 02:39 PM (15 years, 8 months ago) |
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yea man...let me know what kind of equipment you end up with in this cab...and the various wattages...and i can probly get you in the ballpark
goodluck man...
agmotes165
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“The Universe is under no obligation to make sense to you” -NDT
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