New LED Cooling Technology from GE
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LEDninja
Flashlight Enthusiast
I have recovered the following data from Google's cache manually.
Please post any errors and corrections in a new post below.
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The format is:
Date, time, old postcount#, poster;
post data
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I will try to fix the CPF links in the next 2 weeks or until I give up in frustration. Can not do that and verify with CPF down.
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11-05-2010 07:16 AM #2 Steve K
wow... forced air cooling in a small package! Interesting.... Of course, cost and reliability are the big issues. Would it be cheaper to just use a light fixture that has enough radiating surface to passively dump the heat? Will the "small micro-fluidic bellows type devices" clog up with dust and cat hair, reducing their effectiveness, and causing the LEDs to overheat?
Are these devices being used anywhere else right now? Seems like they would be applied to cooling computer processors.
regards,
Steve K.
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11-05-2010 07:34 AM #3 lhloy
Thanks, this is great. However, I could not figure out from the article WHAT creates the differential air flow for the cooling jets. Could it be passive thermal differences? Is it a powered blower (however small)? I will save this website and visit it periodically!
Thanks again for this sort of technology research news that is relevant to us!
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11-05-2010 07:36 AM #4 Illum
like everything else, including car engines...designs are always done in the clean room, where there are no pets, no human hair and no floating fiberglass moving about above the fixture.
Up to now all lamp designs have been based on maximizing the marginal efficiencies of the tungsten incandescent lamp. Theres really no readily available fixtures that can accommodate LEDs in terms of providing thermal relief.
From a purely ideal perspective, drop-ins in packages such as PAR3, E27, MR16 etc should be used in a fixture readily able to conduct heat [completely opposite to incandescent fixtures that insulate heat from the building materials its mounted to] and installed with a goop of thermal paste around it. I mean gee...if the LEDs survive as long as its supposed to, its likely to be replaced very infrequently.
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11-06-2010 03:37 AM #5 Marcturus
see:
http://www.candlepowerforums.com/vb/showthread.php?298507-GE-Debuts-Jet-Engine-Inspired-LED-Bulbs
Please post any errors and corrections in a new post below.
-
The format is:
Date, time, old postcount#, poster;
post data
-
I will try to fix the CPF links in the next 2 weeks or until I give up in frustration. Can not do that and verify with CPF down.
-----
11-05-2010 07:16 AM #2 Steve K
wow... forced air cooling in a small package! Interesting.... Of course, cost and reliability are the big issues. Would it be cheaper to just use a light fixture that has enough radiating surface to passively dump the heat? Will the "small micro-fluidic bellows type devices" clog up with dust and cat hair, reducing their effectiveness, and causing the LEDs to overheat?
Are these devices being used anywhere else right now? Seems like they would be applied to cooling computer processors.
regards,
Steve K.
-----
11-05-2010 07:34 AM #3 lhloy
Thanks, this is great. However, I could not figure out from the article WHAT creates the differential air flow for the cooling jets. Could it be passive thermal differences? Is it a powered blower (however small)? I will save this website and visit it periodically!
Thanks again for this sort of technology research news that is relevant to us!
-----
11-05-2010 07:36 AM #4 Illum
like everything else, including car engines...designs are always done in the clean room, where there are no pets, no human hair and no floating fiberglass moving about above the fixture.
Up to now all lamp designs have been based on maximizing the marginal efficiencies of the tungsten incandescent lamp. Theres really no readily available fixtures that can accommodate LEDs in terms of providing thermal relief.
From a purely ideal perspective, drop-ins in packages such as PAR3, E27, MR16 etc should be used in a fixture readily able to conduct heat [completely opposite to incandescent fixtures that insulate heat from the building materials its mounted to] and installed with a goop of thermal paste around it. I mean gee...if the LEDs survive as long as its supposed to, its likely to be replaced very infrequently.
-----
11-06-2010 03:37 AM #5 Marcturus
see:
http://www.candlepowerforums.com/vb/showthread.php?298507-GE-Debuts-Jet-Engine-Inspired-LED-Bulbs
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