This is the question that I have been wrestling with for so long Harry. I may have found a method of getting to the real temperature value. The technique need a lot more calibration before it can be trusted.
Dave -----Original Message----- From: H Veeder <[email protected]> To: vortex-l <[email protected]> Sent: Sun, Oct 19, 2014 3:00 am Subject: Re: [Vo]:Re: Color Temperature Should the reactor radiate like a normal incandescent body of 1400C or does the reactor radiate according to some other rules? Jed (and Mizuno?) assume it behaves like a normal incandescent body of 1400C so it should glow white. Since it doesn't glow white they assume the output power estimate based on infrared light measurements is invalid. However, even if it were glowing white, the visible light contribution could be ignored and the power output could be (under)estimated from just the infrared light measurements. Harry On Sun, Oct 19, 2014 at 2:19 AM, David Roberson <[email protected]> wrote: I saw the photo of the block and of course it seems to be similar as well. I am not convinced that the casting that was treated for 12 hours and quickly removed had time to cool that much. I may be wrong, but the first reference I located showed roughly the same color as well. This also matched what was observed by the testers. I see evidence building up that what the testers saw might have been reasonable. Also, I recall that the sun is supposed to appear near white and it is far hotter than 1400 C. We need to locate an expert in this field to settle the question. Dave -----Original Message----- From: Jed Rothwell <[email protected]> To: vortex-l <[email protected]> Sent: Sun, Oct 19, 2014 2:07 am Subject: Re: [Vo]:Re: Color Temperature David Roberson <[email protected]> wrote: I found another entry relating to heat treating of metals. There is a picture of a heat treated casting that states that it was just removed from the oven after heating at 1200 C for 12 hours. I presume the castings were removed a few minutes before the photo was taken and they have cooled down to around 900 deg C. Look at the first photo in this article, "Heat treating furnace at 1,800 °F (980 °C)." The red color is similar to the e-cat color, and to the 900 deg C mark on the incandescence color bar: http://en.wikipedia.org/wiki/Incandescence#mediaviewer/File:Incandescence_Color.jpg - Jed
