I mean to say "You can sure that Levi PUT the probe into the outlet tube
flow."
I mean that no sane person would simply insert a probe into a hole
without checking where the probe ended up, and also checking to be sure
it is properly positioned and leak-tight. You don't just "insert" a
thermocouple, you loosen up the T connector, slide it in, and tighten
the connector again. You can see which hose or pipe the connector is
attached to. If you could not see that, how could you install the
thermocouple? It has to go into the flowing water. In a few cases I have
seen thermocouples attached to copper sleeves around the flowing water.
That ends up measuring some value between room air temperature and the
fluid temperature. Anyway, you have to see where the probe goes to, no
matter what.
I looked for a schematic of a T connector and found an interesting short
paper:
http://www.andrew.cmu.edu/user/yr25/RabinPublications/Rabin_Pub220.pdf
The connector in this paper would not work with such a high flow rate.
You need pipe-fittings. The flowmeter used in the second test was
reportedly an off-the-shelf type used for water usage metering in houses
or buildings. It is heavy duty, unlike the precision flow meters used in
most cold fusion experiments. It would have to be heavy-duty, to
withstand a 1 L/s flow.
At the NRL they constructed a test bed for 10 kW scale reactors, with
pipe-fittings, thermocouples and bi-metallic dial thermometers. This
looks like the test bed at Hydrodynamics, or what you see in an
industrial boiler room. A dial thermometer is inserted into a T-coupling
as shown in Fig. 1 here:
http://www.sika.net/pdf/englisch/Bimetal_e.pdf
It has to be fully immersed in the center of the flow. When you insert a
thermocouple you have to make sure it is similarly positioned.
- Jed
