Abd ul-Rahman Lomax wrote:
Jed, these devices measure a number of things directly, and others are
calculated. I see no sign that the device is designed to measure steam
quality. It's not a described application.
Yes, it is. The Delta Ohm meter with an HP474AC probe, the meter is
intended to go up to 150°C. That's steam temperature. The meter is
intended to measure enthalpy.
Why would they make a meter that goes up to steam temperatures, which
specifically says it measures calories per gram, but it does not do
that? What would be the point?
Look, Abd, you need to get real. I honestly have no idea how these
meters work. Electronic instruments are often black boxes that work by
black magic. But these meters are made by several different companies
and it is reasonable to assume they work as advertised. They measure
enthalpy. Otherwise, some agency would go after the companies for false
advertising. If the gadget did not work with steam, what possible use
would it be? Who would buy it? You would not use one of these
single-probe instruments to measure the enthalpy of hot water. You use
these nifty things:
http://www.dynasonics.com/products/tfx-ultra.php
If Rossi would incorporate the Testo 650 with the printer option, and
have it print enthalpy every minute, he would have a bang-up,
irrefutable demonstration. He could measure the reservoir before and
after, power input, and then show that the printed record of enthalpy
does not vary much, so the flow rate and power level is reasonably
stable. That would prove his point. Just multiply the average enthalpy
by the total mass of water consumed and Bob's your uncle.
That would be nice touch, but the video demo was impressive enough.
Rossi is a more impressive in person, in the video, then he is in his blog.
- Jed
