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Originally Posted by unregistered
do you want some Shin Etsu G-751-S grease ?
I also have some 765 but no 'known' value for it (lower viscosity I believe)
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How is the 'known' value defined? As a C/W for a given area?
Damned good of you to offer it, I would be happy to try it. It was not an original aim to test the differences between the different types of greases but it would actually be quite interesting, this is an ideal way to do it IMO.
My general attitude towards TIMs has been that anything works, as long as it doesn't evaporate or harden but I would welcome any education to the contrary.
Some more numbers today after 24 hours settling. BTW this is"M.G. Chemicals Cat. No. 860-4g Silicone Heat Transfer Compound"
TIM: 0.0359 C/W
And a power comparison from my newly calibrated water temperature sensors.
Power in: 72.61W (V^2/R)
Heat flux: 72.26W (k*A*DT/L)
Heat to water: 70.256W (FR*Cp*(Tin-Tout)) At a flow rate of 3.22lpm and 4186 heat capacity.
Seems reasonable.