Abiqua
Well-Known Member
disagree
CXA3590 Build Plan
- Thread starter Doer
- Start date
Positivity
Well-Known Member
They need to add professional trolls to their résumé
They need to attack in unison
Saw this coming a long time ago...haha. Surprised it took them so long. Actually I think I know why the timing was right for them too.. Haha.. Predictable.
They need to attack in unison
Saw this coming a long time ago...haha. Surprised it took them so long. Actually I think I know why the timing was right for them too.. Haha.. Predictable.
Abiqua
Well-Known Member
That was the best, they nearly simultaneously responded to my gibberish....two birds, one post....Neener Neener!
Sativied
Well-Known Member
Honestly I no longer know who you think is trolling who. I could say the exact same thing about most of you. Down to the last word. Predictable. Same pattern as in all the other threads you guys trolled up. It always ends with insults and accusing the trollee of being the troller... People who disagree aren't trolls, people who troll trolls aren't trolls. What you all are doing, that is trolling.
While at some points some tried to help it's overall just condescending an when it turned out Doer didn't want to submit to you all playing light designer you gang up and nuke the thread. It's obvious all about growing epeen...
Epeen is easier to grow than mj...
Ya'll deriving self-esteem from buying extra cobs and run them all lower for extra efficiency but when someone shows it doesn't have to be all about that you all freak out, even suggest it was planned... wow.
That fixation on efficiency and making that mandatory for help (for which he didn't ask, not that kind of help anyway) but also being a requirement for not getting your build thread trolled up is not really helping anyone.
Positivity
Well-Known Member
Not really... We've responded differently not just cheerleading.
Just look at my lights for example. Every one is different. I'm the last one to accuse of building things only one way.
My only problem with this thread is the bad attitudes you've brought with you.
Just look at my lights for example. Every one is different. I'm the last one to accuse of building things only one way.
My only problem with this thread is the bad attitudes you've brought with you.
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churchhaze
Well-Known Member
I have fucking 2.4uMol/J which destroys your fucking 600W HPS lamp, and that's why you're so butt hurt. Don't be hating because of my 2.4uMol/J
You know goku?
You know goku?
churchhaze
Well-Known Member
This isn't a build thread, it's whining and complaining thread.
Doer
Well-Known Member
You punks can leave. No one is stopping you. Your ass wipe attitudes are stringy entertainment and your no-math opinions are useless.
And now you act the we invaded. Daft children.
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Doer
Well-Known Member
Anyway, back to big ass COBs. Sunlight is around 450 l/m3, one of those COBs is sunpower. That is amazing.
You use liquid cooled heatsinks, very effective. Water makes watts easy to dispose of. Big radiators outside are quiet.. So, I work out the design for liquid cooled sunpower on 6 square meters. That would be something.
You use liquid cooled heatsinks, very effective. Water makes watts easy to dispose of. Big radiators outside are quiet.. So, I work out the design for liquid cooled sunpower on 6 square meters. That would be something.
bicit
Well-Known Member
Well you are still limited by air a little bit. You'll need a big enough radiator or a chiller system in order to remove the heat from the water. Observe&report did a water cooled cab using CPU components. Worked decently well.
I've always wanted to drill holes through the heatsink base so that water could be ran through the heatsink itself. Just to aid cooling, plus have backup cooling of the heatsinks themselves in case the water pump failed.
Hmm, I wonder if .25" diameter passages would be enough to remove heat.
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Doer
Well-Known Member
Ah yes, the cold plate. Always a new term.
http://www.fcopto.com/pdf/P110-15S19P_datasheet.pdfold
I like the flooded fin approach.
But, there are the usual designs as well. And there are online calculators.
Flow rate wins here, also, same with air. And fins give 50% more flow, straight through.
http://www.fcopto.com/pdf/P110-15S19P_datasheet.pdfold
Nice. A physics helper, and much better math head than I. My buddy. Glad you could join. Well, it is not just Joules to consider. The other side is that water can give up that heat much more easily than air. Water can be pumped more efficiently than air, the flow rates are less, and watts to do it, are less. Insulation on pipe runs is less. You need a lot less working fluid, and a lot less recovery cost, No A/C load. So, that and other technical details about laminar flow resistance, etc, makes it it 3400 times more effective (according to Wiki) all told for the job of transporting heat. It has similar math to air systems.
I like the flooded fin approach.
But, there are the usual designs as well. And there are online calculators.
Flow rate wins here, also, same with air. And fins give 50% more flow, straight through.
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Doer
Well-Known Member
The pores on your skin are large enough to remove heat. Air is fluid, and there are even better fluids than water for some things. For example in extraction we are concerned about maintaining a low temperature. And alcohol trap before the vacuum pump, needs to be around -30F or less. You take dry ice and mix it with acetone. That stays a certain temp in the same way water and ice stays at 32F, as long as there is ice. And the dry ice won't sublime in acetone, it melt first, into the acetone.
I see you all thinking correctly about "just in case." Passive-active hybrids, water-air hybirds. But they seem to want to keep the system up and limping instead of shutting it down to be fixed.
So, to me correctly is to figure out the failsafe. Limp home? My motorbike does that. I take another course of maxing up the system so it cannot run without cooling. So for that I need shutdown fail safe techniques.
About drilling an existing heat sink, you would be much better off I think, flooding the heat sink fins, somehow in a flow through container. Maybe it is similar to air flooding a heat sink in a forced air channel.
Very good thoughts.
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skunkd0c
Well-Known Member
What an astounding achievement, congratulations.
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Doer
Well-Known Member
Anyway, back to the trolls and their minor decorative value.
Skunk says:
Sorry i am having difficulty making sense of your post , did i offend you in some way >?
i am here to watch Doer plain/build his light, as far as i know he does not require my help, and i would not try to force it on him either because i am not pretentious
Abiqua answers:
disagree
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It is kinda like tinsel on an old Christmas tree on the side of the road. Still decoration, right?
Skunk says:
Sorry i am having difficulty making sense of your post , did i offend you in some way >?
i am here to watch Doer plain/build his light, as far as i know he does not require my help, and i would not try to force it on him either because i am not pretentious
Abiqua answers:
disagree
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It is kinda like tinsel on an old Christmas tree on the side of the road. Still decoration, right?
skunkd0c
Well-Known Member
Wow indeed, its actually quite alarming that someone would have such a huge ego and high level of paranoia
to truly believe that anyone who disagrees with them is part of an organised conspiracy with the grand goal of having a "different opinion"
megalomania or schizophrenia ?
Doer
Well-Known Member
Two different design concepts for water-cooled cold plates have been presented. These concepts allow one to design water passages through a complex electronics packaging structure. Modeling and experiments were conducted to characterize the thermal and hydraulic performance of cold plate prototypes built using the two concepts. The hole design prototype showed high cooling capability, in terms of the heat transfer coefficient as defined in this paper,7,~<h <27,000~m2K for the water flow range of 0.5 to 1.5GP The tube concept offers a lighter cold plate options with less manufacturing cost and slightly lower pressure drop. The measured heat transfer coefficients of the tube design prototype are between 6,000 to 17,000 W/m2K for the same flow range.
http://www.digikey.com/Web Export/Supplier Content/Aavid_59/PDF/Aavid_WaterCooledPlate.pdf?redirected=1
http://www.digikey.com/Web Export/Supplier Content/Aavid_59/PDF/Aavid_WaterCooledPlate.pdf?redirected=1