Since no one bit on the Lugano reactors question - they were made by IH in Raleigh with Durapot 810, which per Cotronics, has between 75% and 85% alumina powder in the cement, batch dependent. You then get to factor in another tidbit - the Lugano reactor was apparently painted in Lugano by either Rossi or one of the testers. Specific paint color, make and model unknown
Dewey,
I think you may be mixing something up. Levi and team conducted 2 tests: Ferrara (March 2013), and Lugano in 2014. Actually there was another Ferrara in Dec 2012, but only Levi/Rossi were present and the Hotcat reportedly melted. Anyways, it was the Hotcat in the March 2013 Ferrara test that was painted, so doubtful IH built it as this took place *before* the IH/Rossi Validation Test on April 30 2013. Here is the wording from Levi's report:
The outer surface of the E-Cat HT2 and one side of the flange are coated with black paint, different from that used for the previous test. The emissivity of this coating, a Macota® enamel paint capable of withstanding temperatures up to 800°C, is not known; moreover, it was not sprayed uniformly on the device,
I looked through the Lugano report, and did not see anything about painting. In fact, Levi sent out a sample of the housing for analysis after the test was completed, and it came back 99% alumina. This is from the Lugano report:
In the course of the year following the previous tests, the E-Cat’s technology was transferred to Industrial Heat LLC, United States, where it was replicated and improved. The present E-Cat reactor is therefore an improved version running at higher temperature than the one used in the March 2013 experiment.
Therefore, in the course of the test, we set the camera software to emissivity values valid for several alumina thermal ranges. However, in order to acquire from the literature a more adequate emissivity vs. temperature trend, it was necessary to know some of the characteristics of the material the reactor was made of, such as its composition and degree of purity. For this purpose, upon completion of the test, we took a sample of the material constituting the reactor; subsequently, Prof. Ennio Bonetti (Bologna) subjected it to X-Ray spectroscopy. The results confirmed that it was indeed alumina, with a purity of at least 99%.
An interesting aside for IHFB....In reading the Ferrara report, I noticed this description about that "on/off switch" the Lugano team failed to use:
In the ON/OFF phase, the resistor coils were powered up and powered down by the control system at
observed regular intervals of about two minutes for the ON state and four minutes for the OFF
state. This operating mode was kept more or less unchanged for all the remaining hours of the
test. During the OFF state, it was possible to observe – by means of the video displays connected
to the IR cameras (see below) – that the temperature of the device continued to rise for a
limited amount of time