In the Essen paper, they were apparently able to examine steam coming
out of an open valve in the top of the chimney, a separate exit from
the hose. That would be why they were able to say that it was dry
steam, it's easy to tell if you can see it.
More accurately, if you can't see it until it's cooled enough to
condense as a steam cloud! That long hose complicates the hell out of this.
If you want to run a long test, sure, using the hose makes sense. But
periodically, an observer should be able to open the relief valve at
the top of the chimney so steam will shoot up in the air, and close
the valve to the hose, so that no water -- or steam -- will be
escaping through that hose....
From the characteristics of the steam plume, one could, with a given
relief valve and some calibration, get a very direct indication of
enthalpy. How high above the opening does the steam rise before
becoming visible?
At 08:49 PM 6/20/2011, Jed Rothwell wrote:
Terry Blanton <<mailto:[email protected]>[email protected]> wrote:
Watch it. AR lifted up the hose to drain the water into the wall
before showing the steam.
Ah. I see what you mean. At around 10:50 he lifts up the hose.
If AR is right, steam condenses inside the hose. That will happen.
Yes, with such a long hose it has to be radiating heat, which means
the water has to condense. That's why I suggested he test it with a short hose.
A window would also be good.
- Jed
