Abd ul-Rahman Lomax wrote:
Look, Abd, you need to get real. I honestly have no idea how these
meters work.
That's right. I can tell you this: the brochure is quite specific as
to what is measured, and it ain't enthalpy.
What are you talking about? The brochure says that it measures, quote:
"Enthalpy" (kcal/kg)
http://www.deltaohm.com/ver2010/uk/st_airQ.php?str=HD37AB1347
The enthalpy of what? Hot molten salt? (seriously, not that, the
temperature is too high. But obviously the meter needs to know what
substance is being measured!)
Steam, obviously. There is no significant enthalpy in humid air. Nobody
wants to measure that, in any case.
You are right you would not use it to measure the enthalpy of hot
water. Bingo! Wet steam is, partly, hot water! It is not a uniform
material, it will separate out into hot water and water vapor. I don't
think the probe is measuring the hot water at all.
If the probe does not correctly take into account the fraction of steam
that is hot water, it would not work correctly. It would be useless.
- Jed
