The most excellent (but now closed) thread, number thread135-145412 , contained a discussion about the depressurizing of a tank containing a liquified gas (CO2). In the thread, Mr. Montemayor presented a scenario in which a full depressurizing of a vessel caused the steel temperature to drop...
In Excel, I have a table of data giving fluid densities (rho) with temperatures (T) and pressures (P) as parameters. In other words, my table looks like this:
DENSITY vs. T,P
P1 T1 Rho1,1
T2 Rho1,2
T3 Rho1,3
P2 T1 Rho2,1
T2 Rho2,2
T3 Rho2,3
etc.
My problem is...
I believe that by convention NOx concentrations are reported as mg of NO2 per dry standard cubic meter or foot of flue gas. I also think this is reported "without dilution". Could someone confirm my very shaky understanding of this and clarify what without dilution means.
Also, is there any...
I need some expert opinions regarding API650 floating roof tanks. My current project expects to buy a number of these tanks, but I see a few problems I'm unsure about. First, the design temperature is up to 230 degrees F, which I think exceeds API650 limitations. Obviously high temperature...
I need to move into some gray areas. We have a number of cases where we are flowing through multiple (large) heat exchangers and then into a vessel. I would consider the exchangers to be pressure vessels since they don't meet the exclusion criteria. Some of these circuits are quite complex...
I (think that I) understand the factors involved in selecting which side of an exchanger to put the two fluids, and I know the limitation due to thermal expansion of fixed tube design. But that leaves choices between expansion joints, floating heads, and U-Tube designs when temperature...
