Yes, I remember reading Horace Hefner's analysis. As I recall, he (as well as some others) have repeatedly questioned the very stability you mention. It seems unlikely that the core can "know" how much energy to produce to keep the device exactly at the right temperature to just barely keep the water at the boiling point.
And, given the doubts about the accuracy of the placement and use of the temperature sensors, any conclusions based on temperature reading is suspect. Mats Lewan stated in November that Rossi has has supplied all temperature instruments (http://lenr.qumbu.com/rossi_ecat_eai_emails.php), so that's an open issue. It would be interesting to actually know what the pressure of the water jetting out of the E-Cat at the end of that video really was. I proposed a simple way of determining that, that's all. ________________________________ From: Robert Leguillon <robert.leguil...@hotmail.com> To: vortex-l@eskimo.com Sent: Sunday, January 22, 2012 10:24 AM Subject: RE: [Vo]:"unpowered" test of Ecat Horace Hefner did some excellent analysis on this subject, presuming that there is a check valve and/or flow restrictor at the output. From the stability of the E-Cat temp, you can tell that it is at boiling temperature, with a mix of water and vapor. Simple steam charts will show you that the internal pressure of the E-Cat rises as high as 3 bar (134C=3 bar). http://www.engineeringtoolbox.com/boiling-point-water-d_926.html You are 100% correct that this back pressure will decrease the water added by the pump. This is ask well trodden ground, so I'd recommend searching the archives. ________________________________ Date: Sun, 22 Jan 2012 07:02:28 -0800 From: john_sw_orla...@yahoo.com Subject: RE: [Vo]:"unpowered" test of Ecat To: vortex-l@eskimo.com Very interesting! It's obvious that the water being released at the end of the video is at a *MUCH* higher pressure than the water/steam coming out of the rubber hose. I guess that means that there are two separate containers of water. According to Mats Lewan, that high-pressure stream continued for about 3 minutes(!), even though the video ended after about 1:20. I recall reading that the pump used to pump water into the E-Cat was sensitive to back-pressure. With the kind of pressure being displayed in that video, the pump probably couldn't pump any water at all into the E-Cat, which is another indicator that there are two separate containers of water. It occurs to me that an easy experiment would be to take a pressure tank with a valve like the one at the bottom of the E-Cat, fill it half full of water, pressurize the container to various levels, then open the valve part-way (matching the video), and see how much pressure it takes to produce the same kind of stream. Once the appropriate pressure is found, it would be easy to determine the maximum temperature for liquid water at that pressure, and from that, the amount of heat energy actually being stored in the water. ---------------------------------------- Eff Wivakeef Fri, 20 Jan 2012 09:46:45 -0800 http://www.youtube.com/watch?v=gNhQIufkdL4&feature=related Fast forward to 6:40 Huge blast of steam and hot water. What is going on here?
