My photo that showed Rossi’s lab seems to have caught the attention of many people, hundreds of whom have visited this website. The image was literally passed to the “X-ray”.
I read the comments appeared on various Italian and international blogs and forums, so I would like to summarize here the most interesting observations. I think that makes sense, given that many of the measurement instruments seem identical to those used in the 2nd independent test.
According to andrea.s, an engineer who writes also on Cobraf: “A 3-phase supply is applied in a star configuration (3 phase 4 wire) to the 3 Hot-Cats”, but “each Hot-Cat is powered by one phase line and connected to a common neutral daisy-chained from one Hot-Cat to another. Wiring is so long, and neutral wiring length so uneven, that there can be no “electromagnetic pulses” other than the 50 Hz sinusoid fractioned by the AC regulator thyristors”.
The electrical engineer Bob Higgins, on Vortex, is substantially of the same opinion: “Each Hot-Cat is connected with 2-wires only: each is connected single-phase! This probably means that the Hot-Cat only relies on heat-up, not magnetic field interaction – certainly not rotating field interaction. So replication does not need to use a 3-phase heater coil inside the Hot-Cat because there is no need to simulate an industrial environment”.
A reader on E-Cat World points out: “The use of 3-phase power during testing inadvertently sidetracked many independent observers when in reality it was just a convenience for management or equipment reasons”. And AlainCo writes on LENR Forum: “It is designed for industrial application where phase balance is important. As soon as you consume few dozen kW, the electric company asks you to use 3-phase and to balance your consumption”.
On Vortex Bob Higgins adds, about the gray box in the photo: “The gray box controller is controlling the energy to all 3 Hot-Cats via the red 3-phase SCR controller in such a way as to control the temperature of each Hot-Cat independently. This gray box controller is designed to control each Hot-Cat solely based on 1 temperature measurement per Hot-Cat”.
Higgins also clarifies its function: “The temperature controllers mounted on the gray box are probably each controlling the set-point of each Hot-Cat (i.e. they are not being used just as temperature meters). A microcontroller in the gray box may read each meter (RS232) and then sets the SCR angle for that phase to control the power to each Hot-Cat”.
The engineer Gerard McEk on E-Cat World instead focuses his attention on the little yellow paper on the bottom left corner of the table (see the image above): “It shows the shape of the currents due to the triac control. It seems that Andrea Rossi is also interested in that shape. If the triac controller was just installed to control the heat input, you would not be very interested in the shape of the currents”.
Finally, ThomasM observes, like many other readers elsewhere: “When I look at the electrical installation on the walls it’s an American type installation, not Italian sockets”. And Andre Blum adds: “Also the extension cord / splitter on the ground is one found typically in the US”.
Better than Sherlock Holmes! 😉