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With the papst fans, for the 29mm 14fpi 0.1mm fins, I see a C/W of .03
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I see Q=2.3m3/min => C/W=0.045
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32mm 24fpi 0.25 mm fins, a C/w of .045.
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I see Q=1m3/min => C/W=0.055
Same trend... different figures
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Les' sim makes the 29mm cores look good.
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Agree that the thicker cores+higher fin density seem to have a lower C/W - up to a point
Les, any chance of you sharing your raw data ? (for playing purposes only

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