Correction: my previous calculation actually assumed a 2 cm diameter (1cm radius). Assuming a 1 cm diameter and pure steam give a 4 times higher value (132 m/sec).
On Wed, Jul 31, 2013 at 12:54 PM, Franco Talari <[email protected]>wrote: > Can someone tell me the diameter of the steam exhaust tube? If I assume > a 1 cm diameter, along with 18 g/mole of H2O and 1000 g/liter and 1000 > cc/liter for water and 0.5 liter/minute input flow, then assuming the ideal > gas law (22.4 liter/mole at STP) as an approximation for steam at > atmospheric pressure I get for the output velocity, > v = (0.5 l/minute)(1 minute/60 sec) (1000 g/liter) (1 mole/18 g) (22400 > cc/mole)/(pi*1cm*1cm) = 3300 cm/sec = 33 m/sec > > for the exhaust. This seems quite large although the cooling and back > pressure may lead to condensation/slowing-down as the steam proceeds > further out of the reactor. Note that this calculation of the exit speed > does not rely on any knowledge of the "back-pressure" but simply on the > input flow (water is incompressible) and the assumption that it is all > converted to steam. If instead, it is converted to superheated water > droplets (wet steam?) due perhaps to back-pressure which raises the boiling > temperature, then the exit speed would be much less, and might be more > reasonable. > > Any comments? > > > On Wed, Jul 31, 2013 at 11:17 AM, Jones Beene <[email protected]> wrote: > >> ** ** >> >> *From:* Jed Rothwell **** >> >> **** >> >> The claim of testing isotopes to determine that only Ni61 is inactive - is >> IMO clearly fiction. There are others but this is the most blatant. >> >> This is a company which has been on the verge of financial collapse until >> recently and these isotopes cost at least $20,000 per [gram], and several >> ounces of each [24 grams minimum] would be needed to determine activity.* >> *** >> >> ** ** >> >> Ah, I see your point. **** >> >> ** ** >> >> Other details stand out as a bit fishy, even to supporters of LENR but in >> the demo – the half-liter+ per minute of water turning into steam is the >> most troubling. And it is not so much from the lack of visual evidence of >> steam, as from the lack of sound. This came to mind just now as my teapot >> was shrieking-out a deafening reminder of what ~500 watts sounds like.*** >> * >> >> ** ** >> >> Of course the 20+ kilowatts implied by that much water flow (in the DGT >> demo) would be fabulous on first blush, but …. think about the sound (or >> lack thereof). **** >> >> ** ** >> >> When you are driving a moderate speed in an average car – about 20 >> kilowatts of thermal energy goes out the exhaust pipe - which is typically >> 2-2.5 inches diameter in the USA. The DGT reactor supposedly was pushing >> over 20 kilowatts of hot gas though a tube which was 10 times narrower >> (less diameter) or 100 time less area for the escape of hot gases. **** >> >> ** ** >> >> The DGT reactor exhaust should have been SCREAMING with an unbearably >> loud hiss like the equivalent of about forty teapots on full boil.**** >> >> ** ** >> >> Is this criticism “sound” or not?**** >> >> ** ** >> >> ** ** >> > >
