Herm said:
Coulomb said:
Keep in mind that that data from Thermalloy was for 3 in. length. And if you're trying to be conservative, your number should get bigger rather than smaller. A 'not-bad' approximation of the equivalency between this sink and yours can be gotten from looking at the in^2/in. numbers of the two sinks.
Anthony,
That looks like a good design, and I would use 8 heatsinks per channel with it.
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Brian
That looks like a good design, and I would use 8 heatsinks per channel with it.
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Brian
Hello Fcel, the answer is yes. 🙂 Between the time I put the first post up and when I put the drawings togeher, I realized the flue's should be vertical as you say and not horizontal. Not only di d this change the orienation, it also changed the heat sink count from 6 to 8 for aesthetics', as I want the finished product to look more conventional in design.
Anthony
Anthony,
Sorry, I still don't quite understand how you're aligning the heatsinks. To me, conventional way means having heatsinks fins pointing up which means if you have 4 heatsinks on each side, your amp would be approximately 40" long which would make it the longest amp that I will ever see.
Sorry, I still don't quite understand how you're aligning the heatsinks. To me, conventional way means having heatsinks fins pointing up which means if you have 4 heatsinks on each side, your amp would be approximately 40" long which would make it the longest amp that I will ever see.
Hello Fcel,
They are to be stacked 2 high, if you look at my drawing, imagine you can see the second row of heat sinks on top of the first. The 4 heatsinks becomes 8, the dimensions would be approx 14" wide x 20" deep x 10" high.
I will try to post a photo of the parts in a rough layout tonight.
Anthony
quote "They are to be stacked 2 high"
Sorry, I did not read that you meant stacked 2 high. Now, I "see" what you meant.
Sorry, I did not read that you meant stacked 2 high. Now, I "see" what you meant.
Hello Herm, I suck at math, so what kind of rise above ambiet Temperature, assume 23 Deg C, is 8 of my heat sinks per channel going to result in?
🙂 Anthony
Hello Peter, I assume you mean the same as Fcel, with the flue's in the vertical plane so heat can rise and escape the chassis unobstructed?
Anthony
Yes. I would go even one step further and trim one end of ea.heat sink, so when you put them side by side all fins in the center (where they connect) are equal length. Your amp would be less deep and look better. You got more heat sink area than required anyway. Just a thought.😉
Coulomb;
OK, so the Aleph 1.2 dissipates 500 watts per channel.
One of your heatsink is about .55 degrees C per watt.
Since you have 8 of them, your aggregate rise will be
.55/8=.06875 degrees C per watt.
Lets multiply that times the 500 watts youare trying
to get rid of and we get 500 * .06875 = 34.375 degrees.
Add on your 23 degrees ambient, and your grand total
looks like 57 degrees celsius (or 134 fahrenheit).
-herm
P.S. Your mileage may vary ...
OK, so the Aleph 1.2 dissipates 500 watts per channel.
One of your heatsink is about .55 degrees C per watt.
Since you have 8 of them, your aggregate rise will be
.55/8=.06875 degrees C per watt.
Lets multiply that times the 500 watts youare trying
to get rid of and we get 500 * .06875 = 34.375 degrees.
Add on your 23 degrees ambient, and your grand total
looks like 57 degrees celsius (or 134 fahrenheit).
-herm
P.S. Your mileage may vary ...
Thanks fcel, 57 Deg. that is totally cool, pardon the pun. I was hoping to come in under 55 Deg, but 57 Deg. is quite acceptable.
Anthony
Anthony
Hey peter, I will have to think about the straight cut look, I was thinking the wave effect would look kind of cool. We will have to think about it some more.
Anthony
Anthony
Trimming the heat sinks in the fashion you suggest would lob 2" off each side (redundant, as you would not do one side only).
leaving a taper at the front and back, I can see where the appeal of form blending with function would appeal to a classic lines type shuch as yourself Peter.
Anthony
leaving a taper at the front and back, I can see where the appeal of form blending with function would appeal to a classic lines type shuch as yourself Peter.
Anthony
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