sammyz2646
Member
BAD ASS DOC!!!! Man bro, did you draw all that up with your computer skills?
See, I could never have done that! Sharing skills ----is where it's at!
Below, I cut and pasted from my original thoughts back in late Apr. . . .. .in 3d dream's DIY stealth thread and of course is un-edited at this point, so some items discussed have changed and will continue to change and get better and better. . . .
before all this starting coming together. . . . Now with the help of LED masters in IC mag, I hope that many will benefit from the thought, and it just gets better and better with all the smart motivated people here. . .
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I recently had some thoughts on how to EASILY keep these LED's cool with a simple 4" inline fan and a few feet of lightweight 4" pipe. I like the white 4" stuff at Home Depot. This is intended with the thought that approx 100 watts would be the wattage of each independent LED in this "convection array". The array could include numerous COB's of each growers desired spectrum based on their own research. I recently mounted a 100 watt COB directly in front of a small fan and I'm saying, the airflow kept it very cool. Now I'm not going to go out and buy a bunch of little computer fans and wire them all up!!! there must be a better way. . . . .
Ever go outside in 30 F degree weather, with a 30 mile an hour wind ? Or go stand in front of your A/C unit for like 10 minutes. BRRRR
It doesn't take long to start freezing your butt off due to heat loss via CONVECTION. I too was thinking that for this to work best, the heat sinks would need to be square or rectangular, as I intend to mount them, (or a small array of them), to the pipe, being pushed by that 4" fan. This pipe could circle the room, at you desired height, with fittings for the corners, being pulled by the inline fan. My heat sinks will be inserted from the inside, as the back of the sink is wider than the top and it will fit SNUG inside up against the wall (of the pipe) screwed tightly. I was thinking to still use thermal pad or paste as directed. Mount it to your square-ish heat sink of choice, and then simply cut appropriate sized holes in the pipe. The key here would be to mount the heat sink JUST far enough into the airflow interior of the pipe. Maybe 1/4 in or less, because you really don't want to "restrict" the normal airflow that your fan provides. The goal here is to have the rear of the heat sink in the draft of the airflow inside the pipe, therefore exhausting any heat away with haste. This air would not need be cold at all as it will constantly refresh the hot area behind the chip and heat sink with a stiff breeze of air. I will be building this as I am convinced it will work. I already have these pipes pulling up Co2 in the room from the floor scrubbing full time with the carbon filters. I can just re - route these lines to my desired LED mounting locations and heights. May take some thought
The failure rates of the cheaper, yet effective Chinese cobs ( of any spectrum) would improve drastically over a simple, passive, or potentially undersized heat sink for the desired operation
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Huge credit to the creativity put forth by luvdemshrooms on his project---Cause you took it to a new level man --with the old cool tube and the Cree's
Great engineering followed by clean craftsmanship
That hood gave me many additional thoughts, thanks
See, I could never have done that! Sharing skills ----is where it's at!
Below, I cut and pasted from my original thoughts back in late Apr. . . .. .in 3d dream's DIY stealth thread and of course is un-edited at this point, so some items discussed have changed and will continue to change and get better and better. . . .
before all this starting coming together. . . . Now with the help of LED masters in IC mag, I hope that many will benefit from the thought, and it just gets better and better with all the smart motivated people here. . .
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
I recently had some thoughts on how to EASILY keep these LED's cool with a simple 4" inline fan and a few feet of lightweight 4" pipe. I like the white 4" stuff at Home Depot. This is intended with the thought that approx 100 watts would be the wattage of each independent LED in this "convection array". The array could include numerous COB's of each growers desired spectrum based on their own research. I recently mounted a 100 watt COB directly in front of a small fan and I'm saying, the airflow kept it very cool. Now I'm not going to go out and buy a bunch of little computer fans and wire them all up!!! there must be a better way. . . . .
Ever go outside in 30 F degree weather, with a 30 mile an hour wind ? Or go stand in front of your A/C unit for like 10 minutes. BRRRR
It doesn't take long to start freezing your butt off due to heat loss via CONVECTION. I too was thinking that for this to work best, the heat sinks would need to be square or rectangular, as I intend to mount them, (or a small array of them), to the pipe, being pushed by that 4" fan. This pipe could circle the room, at you desired height, with fittings for the corners, being pulled by the inline fan. My heat sinks will be inserted from the inside, as the back of the sink is wider than the top and it will fit SNUG inside up against the wall (of the pipe) screwed tightly. I was thinking to still use thermal pad or paste as directed. Mount it to your square-ish heat sink of choice, and then simply cut appropriate sized holes in the pipe. The key here would be to mount the heat sink JUST far enough into the airflow interior of the pipe. Maybe 1/4 in or less, because you really don't want to "restrict" the normal airflow that your fan provides. The goal here is to have the rear of the heat sink in the draft of the airflow inside the pipe, therefore exhausting any heat away with haste. This air would not need be cold at all as it will constantly refresh the hot area behind the chip and heat sink with a stiff breeze of air. I will be building this as I am convinced it will work. I already have these pipes pulling up Co2 in the room from the floor scrubbing full time with the carbon filters. I can just re - route these lines to my desired LED mounting locations and heights. May take some thought
The failure rates of the cheaper, yet effective Chinese cobs ( of any spectrum) would improve drastically over a simple, passive, or potentially undersized heat sink for the desired operation
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Huge credit to the creativity put forth by luvdemshrooms on his project---Cause you took it to a new level man --with the old cool tube and the Cree's
Great engineering followed by clean craftsmanship
That hood gave me many additional thoughts, thanks
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