On Wed, Jun 29, 2011 at 2:53 PM, Mark Iverson <[email protected]> wrote:
> Steven: > > Another proposal here is that liquid water is ejected out of the chimney, > which may very well > happen. This is certainly possible with the new, smaller e-Cats which have > a much shorter chimney, > but I would think that its very unlikely with the older e-Cats whose > chimney looks like its at least > 16 inches tall. Before the water boils, where would the liquid be going, if not ejected out of the chimney? There is a pump pushing the water into the reactor at a constant flow rate. Assuming the pressure does not increase outside the range of the pumps specs, regardless of the phase, the water will exit through the chimney. The chimney could also have some baffles inside that would prevent liquid > water > from being ejected; it would simple fall back down into the boiling water. > Then what happens before the water boils? And where does the water fall back to, if the space is taken up by new water pumped in. If the chimney were filled with water, as some people claim, then that alone would cause a pressure increase in the ecat. The pressure increase is given by density*g*height, or 10 kPa * height (in m). So if the height of the chimney is 10 cm, then the increase in the pressure is 1 kPa, which increases the bp by 0.3C. Perhaps that's why the > newer e-Cats have a shorter chimney -- because baffles were put inside. We > just don't know... > We know there are no baffles stopping liquid, because water runs through it before it is boiling.
