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21. Re: [Amps] Anodizing aluminum, painting etc. (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Thu, 17 Aug 2006 12:42:18 -0400; Some of the confusion about heat sinks I think comes from referring to "mass" of the sink. Mass is really the same thing as weight. Weight of a sink by itself has no real effect on its ability to dis; /archives//html/Amps/2006-08/msg00529.html (9,497 bytes)
22. Re: [Amps] Anodizing aluminum, painting etc. (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Thu, 17 Aug 2006 12:57:28 -0400; I have found one odd exception as far as heat sinks go. What you state is very true. Just take a look inside most inexpensive UPSs for PC computers. They usually don't have finned heat sinks but just; /archives//html/Amps/2006-08/msg00530.html (9,765 bytes)
23. Re: [Amps] Anodizing aluminum, painting etc. (score: 1): Author: "Jim Tonne" <tonne@comcast.net>; Date: Thu, 17 Aug 2006 13:16:14 -0400; I look "mass" (weight) as a time-constant. Bigger sink stays cool longer while it is soaking up heat. But then too it retains that heat for a longer time than a light-weight sink. - JimT ___________; /archives//html/Amps/2006-08/msg00531.html (8,987 bytes)
24. Re: [Amps] Anodizing aluminum, painting etc. (score: 1): Author: "m.ford" <k1ern@pioneerwireless.net>; Date: Thu, 17 Aug 2006 15:19:22 -0400; It was an intraveinous contraption that used their blood as a brine solution for the external chillers. The idea came from early ice rink systems that were trying to get away from using ammonia. Actu; /archives//html/Amps/2006-08/msg00532.html (10,288 bytes)
25. Re: [Amps] Anodizing aluminum, painting etc. (score: 1): Author: Tim Long <tlong8@earthlink.net>; Date: Thu, 17 Aug 2006 21:19:21 -0400; You are actually pretty close. If you want to equate thermodynamics to electronics, temperature equates to voltage and temperature difference equates to voltage difference, heat flow equates to curre; /archives//html/Amps/2006-08/msg00534.html (9,807 bytes)
26. Re: [Amps] Anodizing aluminum, painting etc. (score: 1): Author: "Will Matney" <craxd1@verizon.net>; Date: Thu, 17 Aug 2006 16:20:34 -0400; Jim, That's what I'm getting at really. The amount of solid aluminum in the heatsink will cause it to stay cooler longer, and the fins are used to dissapate the heat into the atmosphere (surface area; /archives//html/Amps/2006-08/msg00538.html (11,530 bytes)
27. Re: [Amps] Anodizing aluminum, painting etc. (score: 1): Author: "Will Matney" <craxd1@verizon.net>; Date: Thu, 17 Aug 2006 16:28:45 -0400; Gary, Correct, I don't think anyone is saying this isn't so. I know the fins are what make up the large surface area and are what dissapate the heat to the atmosphere. The mass of the solid portion m; /archives//html/Amps/2006-08/msg00539.html (10,985 bytes)
28. Re: [Amps] Anodizing aluminum, painting etc. (score: 1): Author: "Will Matney" <craxd1@verizon.net>; Date: Thu, 17 Aug 2006 22:40:50 -0400; All, I had to brush up a little on this as it's been a long time since I took any thermodynamics classes, and I wasn't really good at the then, hi hi! Too many parties, etc, and I thought the class w; /archives//html/Amps/2006-08/msg00540.html (14,416 bytes)
29. Re: [Amps] Anodizing aluminum, painting etc. (score: 1): Author: Martin AA6E <aa6e@ewing.homedns.org>; Date: Fri, 18 Aug 2006 08:55:56 -0400; This is an interesting thread. The one point that has not been mentioned is that the visible color (black or bare aluminum or whatever) has little to do with heat radiation. Unless you're talking abo; /archives//html/Amps/2006-08/msg00541.html (10,428 bytes)
30. Re: [Amps] Anodizing aluminum, painting etc. (score: 1): Author: mike kendall <ke6cvh@yahoo.com>; Date: Fri, 18 Aug 2006 07:15:16 -0700 (PDT); Martin, I started the thread by asking about black paint on heat sinks. I think, along with the other great educational info I've seen in this thread, you have answered any remaining questions that m; /archives//html/Amps/2006-08/msg00542.html (11,495 bytes)

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