1: can you put the thermowell in an elbow and use the inline pipe for the thermowell? Check your standards or Google elbow thermowell standards.
2: do you mean nozzle extension from vessel wall? 8” (200 mm) is very common, but I’ve seen “as short as possible” up to 12”. I’ve never seen 1800 mm.
Back in my old phenolic resin days, after the operator opened the vent and cracked the man way open < 1 inch they would put a slight vacuum drag (negative pressure) on the still before opening the man way wide open. Man ways had cross bars so no one could fall in.
That was 40 years ago...
Addition systems can be engineered and built so the manways can be closed permanently, or until maintenance turnarounds occur. Decades ago, I saw the same thing where I worked. It's a management problem. Management has to decide whether exposing people is okay or not. There will be a lot of...
m/sec is not a variable. It’s the units of mass flow rate (m).
Snickster gave you the definitions. Please read them:
m is mass in pounds (weight mass W not W/g mass)
m/sec is mass flow in pounds per second
MW is the molecular weight of gas which is S.G. times 29 (MW for air)
Z = 1 for NG...
Besides the equipment, it also depends heavily on the process (components, concentrations, temperature, pressure, etc.) and operation inside the equipment. Not enough detail.
Good Luck,
Latexman
TiCl4,
About 30 years ago, I asked my megacorp's fluid flow expert the same question, "What is the effective shear rate in a centrifugal pump?".
He told me to use:
Shear rate (sec-1) = 10 x RPM/60 or 10 x RPS.
This equation has worked well for me ever since. There was also a lot of...
I’d say no. Pure water has no electrical conductivity. EG has low electrical conductivity. You will be at the mercy of the level of ions in your system. I think if it did work, it’d be a PITA with a lot of false indications.
Good Luck,
Latexman
You need the pipe specs from the original project that installed the piping. Or, call in your mechanical integrity folks and start measuring!
Good Luck,
Latexman
TiCl4,
OP is not handling a flammable. It is combustible; handled below the flash point.
Definitions are critical to properly analyze the reaction so of a operation.
Good Luck,
Latexman