EM Inductance from a coil activating the hot stuff? On Monday, December 8, 2014, Jones Beene <jone...@pacbell.net> wrote:
> Bob, > > > > I think we are witnessing a rather significant string of linked > assumptions that is confused at best, and most likely locally false. He is > a counterpoint. > > > > 1) We know from this report that the insert shown will already reach > the limit of temperature sustainability for Kanthal wire at about 800 > watts. To go higher will demand active cooling (above convection). > > 2) This kind of wire has better thermal characteristics than the > Inconel wire which was originally reported to have been used in Lugano. > > 3) Adding any conceivable layer over the insert which does not cool > the wire will only REDUCE the power needed to maintain the maximum > sustainable internal temperature > > 4) The original Levi report was later altered by Rossi when he > learned from critics that the Inconel wire being used could not sustain the > temperature claim. > > 5) Rossi essentially “invented” in his own mind a new type of > non-existent wire alloy to try to remedy the situation, which now others > are trying to remedy for him - with all this talk about refractory wire. > Basically this tactic of putting words in Levi’s report, to make details > work on paper, but without any evidence of reality other than a hope to see > the experiment work, sounds like complete BS to skeptics. > > 6) Since Goldwater’s insert already shows conclusively that no > greater power can be added than he has added in the convection test > (without compromising the ability of the wire to carry current), it is > essentially not possible to do what is being suggested, in any remote way. > > > > IOW Goldater’s experiment has already proved the Levi Lugano report is > bogus. > > > > *From:* Bob Higgins > > > > Just so my answer is not mistaken, let me say that the MFMP replica will > be exactly the same size as the Lugano hotCat. It will have convection > fins on the outside of the convection tube just like the Lugano hotCat. > > > > Ryan Hunt of HUG has made excellent progress in casting the convection > surface with a high alumina casting cement. The Lugano hotCat had a small > inner alumina reaction tube that contained the LENR reactants. This tube > had a 4mm ID and an estimated 6mm OD. If the Lugano analysis was correct, > then roughly 910W of heat was being input in a heater coil around this > reaction tube, and since a COP of 3.6 was calculated, then (3.6-1)(910) = > 2366W was being produced in the small internal core by LENR reaction. The > MFMP is trying to replicate the heat production of the assembly by having a > core heater coil to model the LENR output and a large heater coil embedded > in the convection tube assembly to model the electrical input to the hotCat > heater. The small diameter coil that Alan Goldwater is building will go > inside the convection (dogbone) assembly that Ryan Hunt is making. The > total amount of electrical input needed for this dummy run (sum into the 2 > heater coils) will be (910)(3.6)=3.28kW. This is a LOT of power for these > small coils. The power per unit area of the wire is a metric used in > design of heater coils. Normally Kanthal heaters want to run in the > 5-10W/cm^2 range for long life. We may be running in the 20-30W/cm^2 range > and at the extreme high temperature limit of Kanthal. It is not going to > last very long above 1200C. > > > > We hope it will get to 1400C before the coils burn out, but we will be > taking data in small steps of temperature until we get there, so even if it > burns out, we will have data supporting or negating the Lugano result. > > > > The design work MFMP also goes to show that if the Lugano hotCat was > actually operating at 1400C for weeks that it must use a refractory heater > technology such as moly silicide or SiC (good research by Bob Greenyer). > Both of these heater types have large swings in electrical resistance > between startup and operating temperature (consistent with Rossi wanting to > be part of controlling the input power as it comes up to temperature so as > not to burn out the heater). These heater technologies only supply about > 1kW in the size of the heater coil portion of the hotCat. So, if the > output temperature really was 1400C range, and the Lugano calculations were > correct about the heat output being 3.28kW, then the heat could not have > been coming all from the heater input - these heater types simply are not > capable of producing all of that heat. > > > > Because the MFMP test will use all electrical input in the replica to > produce the heat, when the infrared response of the replica is matched in > the Optris camera between the MFMP test and the Lugano test (regardless of > the temperature), then the MFMP replica input heat to get that match IS the > total heat being produced by the Lugano hotCat. MFMP will not need to > compute the convection and radiation heats because the output heat will be > equal to the measured input electrical power (we know we have by definition > a COP=1). The test will have thermocouples, so we will see what actual > temperature the Lugano Optris reading corresponded to as a secondary data > result. > > > > On Mon, Dec 8, 2014 at 12:27 AM, Alain Sepeda <alain.sep...@gmail.com > <javascript:_e(%7B%7D,'cvml','alain.sep...@gmail.com');>> wrote: > > Is it really the same size, If I read well the diameter' is much smaller, > making much less radiative surface to dissipate heat ? >
