Quote from THHuxley: “Bob here goes further, saying (effectively) that his data is accurate enough to validate excess heat here. There is a world of difference between:”
One thing is clear: An emissivity of 0.95 for Alumina cement is to high. The…
I don't think anything here is clear except that there is some uncertainty on the Al emissivity, and it is certainly very different band from total at the relevant temperatures here.
We cannot tell what alumina cement was used, nor what thickness, or if something else. And the object was (roughly) ridged. If you want the theory (well validated) for how that effects emissivity go read TC. He states the theory and makes the (minor) correction for the ridges! But this is dwarfed by the uncertainties.
MFMPs work is nice in that it gives empirical data but they did not have the Lugano reactor. There is a sense in which the theoretical calculation from the real reactor data is more correct than their empirical results - although of course the experiment adds much to our detailed understanding and validates the theoretical work as the Lugano testers never did. But it cannot remove the undertainties because we cannot assume that their reactor is identical to the Lugano reactor.
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