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Thanks for your input, Latexman.

Hi, I want to confirm the exact location where the 10% back pressure rule needs to be satisfied. For the sake of explanation lets take a an example: a) Single PSV is protecting a Section VIII vessel with 100 psig design pressure b) PSV set at 100 psig and reaches it relieving capacity at 110...

Situation: We have a remote steam line 300# and the only place remove the condensate from the live line is into a nearby oil line which has a lower rating of 150#. The oil system has other ASME vessels in it that need to be safeguarded from the higher pressure steam line in the event that: 1...

Hello all, I am going to state my problem and my solution as well. I would appreciate comments, criticism from the members. --------------------------------------------------- I am working with a blowdown pipe open to atmosphere at the downstream end. The flow is 2-phase. I was originally...

UmeshMathur and siretb, I have been trying to read x and y coordinates off the regime plot and what i do is , just read the full envelope for a certain regime. The problem is that for example if you look at the graph, stratified and wave flow have one common boundary (right side of stratified...

All, I have been trying to develop a program that would predict the flow regime by programming one of the regime charts like dukler charts. However cannot think of an algorithm that would do the job. Has anyone tried this before ? Or any ideas ?

MortenA, Thank you but my question was more reacted to why work at 121% for properties versus 100% of design. Latexman, appreciate your help in presenting your analogy and it is what I had rationalized in my mind. Need to see if someone else it tinking along the same line. It seems to be...

I am evaluating few cases for a relief valve on vessel water (produced water) and one of them is the fire case. For evaluating latent heat I am assuming that the composition is water and therefore I can use the steam table to find the relief temperature and heat of vaporization. My problem is...

Looking for some comments/criticism: I am working on sizing a vent for a large boiler feed water tank and am following API 2000. The tank is normally vented so has vent on the top. The issue I am trying to resolve is; what is the sizing basis for the vent pipe i.e. to calculate the diameter...

Thanks metengr, I am aware of the clause which exempts vessels with less than 15 psig from ASME section VIII. But what if the vessel is designed for 16 psig, would it have to be hydro-tested to anything greater than 1.3 times i.e. 50 psig

Is there a code which states that pressure vessel with design pressure of 15 psig needs to be hydro tested at minimum of 50 psig.

Thank you, metegr, found it and appreciate the help.

I have heard that the boiler feed water pump needs to have the capability to lift the Boiler discharge PSV. I am trying to find this requirement in the ASME Boiler codes, but since the code is huge, I need some help to point me to the relevant sub section. I have already checked PG-67 and...

I guess you have to see what is the rupture temprature and pressure for your vessel, since the high temperature at reliving pressure will only exist for a very limited period of time.

Hi, For separator sizing the in the two phase (K-O Drum), a quick estimation can be made by looking at API -521 and API 12J. For three phase separator design the best place to look is "Gas Conditioning and Processing" by John M. Campbell , that is if you can get your hands on one...