I did the same, using a water cooker, and got about 90% efficiency assuming textbook heat to vaporize water.
I am a little worried though, about: 1) The, to my feeling, rather slow rate of vapor/steam escaping Rossi's hose as seen in Krivits video My water cooker is 1.5kW, Rossi's water cooker is 15kW. But my water cooker seemed to have a more vibrant cook to it. Maybe the water condenses while traveling through the rubber hose? BTW steam is not invisible, just transparant. Like glas is not invisible but transparant. 2) Air humidifiers being able to do just that: make mist On the other hand, according to Kullander-Essen, water wouldn't exceed 60C if there wasn't some effect. On Mon, Jul 18, 2011 at 1:14 PM, Jed Rothwell <jedrothw...@gmail.com> wrote: > Peter Gluck wrote: > > It is perfectly visible. > But let's measure the enthalpy of the steam > not any other characteristic > > I am calibrating thermocouples. Is that not allowed? More calibrations and > more specific information about temperatures, duration, the mass of metal > and the mass of cooling water would enhance this discussion. > > To paraphrase the monster in "Frankenstein" and "Bride of Frankenstein": > > Calibrations, good. Heat, go-o-o-od. Blather, bad. Unfounded speculation, > bad. > > I measured the approximate enthalpy of steam a couple of months ago, with an > electric frying pan. I did not observe the miraculous event that skeptics > believe is so common, wherein the water disappeared at 7, or 20 or 1000 > times the textbook rate. Due to inefficiencies and the frying pan heating > the room air, I found it took considerably more energy to boil away the > water than the textbooks indicate. No surprise. > > - Jed > >
