Joshua Cude wrote: > >On Wed, Jun 22, 2011 at 9:38 PM, Daniel Rocha <[email protected]> wrote: > >Do you expect water droplets above 100C? This is like expecting >>microscopic ice to not immediately melt above 0C. >> >>You don't expect water droplets above the boiling point. The temperature of >>the > > > >>mixture of steam and droplets will be *at* the boiling point. >> > > >The actual boiling point inside the conduit will be slightly elevated because >of > > > >a slight increase in pressure. Rossi emphasizes that the pressure is at >atmosphere inside the reactor, but in fact it must be slightly higher, or >there
>would be no flow of the fluid. The pressure difference, flow rate, and tube >geometry are related by a simple formula, and reasonable estimates indicate an >elevation in the bp of a degree or so is easily plausible. If the boiling point goes up by degree or two that makes no difference to the implausibility of water drops existing in the beginning of the plume which has a temperature just above the boiling point. As a practical matter it seems to me steam quality is primarly an issue at the place where it is needed, e.g. to drive a turbine etc. Steam quality would rarley be an issue near the boiler where it is produced. Haary
