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Thanks for your help!

Am designing a low-pressure vessel that will have a flat bottom head anchored to a concrete pad, and need to evaluate for seismic effects. Is there any way to get a seismic code report without putting in a support system? Yes, I realize this is more an API 650 situation but we're still...

Am presently trying to set up a model in EPANET for a water supply system to some cyclone cleaner banks. Dilution water is pumped from a tank to several cyclone cleaner systems. I have two questions: 1) How do I determine a minor loss coefficient for a reducer (or expansion) in a pipe? The...

I am running some sizing calculations for explosion hatches on a chlorine dioxide storage tank, using NFPA 68 methods to size the explosion hatches. Equation 7.2.1.1 has a term bar1/2 (square root of bar). Is this the same as (Po + 1)1/2 in 7.2.1b, or is bar1/2 the units?

MJCronin, The guy wires are attached to a nearby scrubber stack, separate from the tank. Don't know if that helps, but that's what I'm looking at. JStephen, thanks for your reply.

The question has come up as to whether reinforcement pads are required when guy wires are connected to a API 650 storage tank roof via a lug. The lug is a vertical plate welded to the roof that has a hole in it for the guy wire. I've looked at API 650 and it does not appear to address...

Thank you, sir!

I am working on an API 2000 fire relief analysis for a methanol tank. If a fire occurred outside the tank, the heat would travel through the tank wall and transfer into the liquid methane inside the tank, eventually causing the methanol to boil. I need to know if methanol vapor would vent or...

Pressure Vessel Handbook by Eugene Megysey, 14th edition has calculations for rectangular tanks. Starts on p. 214.

I'm working on minimum thickness calculations on a rectangular tank that has a v-shaped bottom. I know how to analyze the vertical sidewalls, but how do I determine the minimum thickness of the v-shaped sections?

How do you best determine whether a 36"x36" rectangular manway on an atmospheric tank needs reinforcement? This is not a flush-type cleanout fitting.

What is the best way to determine the minimum bottom plate thickness on a flat-bottom tank designed to API 620 specifications? It is on a concrete slab and anchored down. Using 5.10.2.1 does not work since R1 and R2 both become infinity with a flat plate.