I am calculating and checking the piping loads at nozzles of a 2 stage compressor which may also operate in parallel. Compressor assembly drawing shows a Low pressure and High pressure side (each with an Inlet & an Outlet nozzle) on either side of the Motor.
When checking the combined...
I was trying to perfom a dynamic (harmonic analysis) on a piping system of SS austenitic type) material. In order to check my dynamic stresses, I was looking for the appropriate source of reference and the applicable S-N (stress range vs. no. of cycles) curve. So, I did some reading and I am a...
What are the pros and cons of using "Tube seal" vs. "Mechanical seal" or vice versa to seal off the gap between the roof and shell of an Atmospheric Storage Tank?
I work on this project which involves erection of 500,000 BBL Atmospheric Storage Tanks for storing Heavy Crude Oil and the...
Are there any limitations in using spiral welded pipes for pipelines transporting crude oil(onshore & offshore)? If so according to what code or standard?
I am actually worried about the conditions and stresses arising during installation of offshore pipelines.
I have checked in ASME B31.4...
Gents,
Suppose having Double walled Storage Tanks containing refrigerated Propane (-47°C) at Atmospheric Pressure. Nitrogen blanketing NOT an option.
My question is regarding the thermodynamic behaviour of propane inside such tanks? Is this correct to assume that when the tank is partially...
gents,
I have been searching over the net for a site that quotes the prevailing unit rates for pipeline prices. I am not even sure if such site exists but I tried and came up empty handed. Any info is highly appreciated.
I am preparing a preliminary cost estimate for a 400 km long, 30" dia...
Can someone confirm or corrcet the numbers that I have for Offloading rate of VLCC type ships? According to my sources which are questionable, VLCC's pump heavy crude at 9000 cubic meters/hr at 12-15 barg. Does this sound right? Do different VLCC tankers have different pumping capacities...
Has anyone been involved with design and installation of pipes connecting to water turbines like the ones you have at the base of a dam? How exactly is the water carried from behind the dam to turbine inlet? Does it flow through a concrete tunnel, conduit or a large bore steel pipe? If it is...
Gents,
Would you recommend using a Venturi type flow meter on a piping system carrying Gas? If so, what are the advantages and disadvantages? What if we are dealing with extremely high flow velocities in the pipe? Say 300 m/s. let's assume the venturi flanges to be 8". Would you still...
I have tried to simulate, using CAESAR II software, a pipeline undergoing lateral displacement at a fault crossing. The pipe that I am looking at is API 5L X52, 36" in dia with 0.625" wall thickness carrying heavy crude.
The civil engineer in charge has suggested differential ground movements...
Suppose having a series of 6 floating roof Storage Tanks, each 100 meters in diameter and 14 meters tall. Each capable of storing around 500,000 BBls (79500 cubic meters) of Sweet Crude Oil. If the plot of land for this Storage area is located on an underdeveloped Island (about 20 km from...
hi gents,
anyone know any good literature on design & construction of offshore pipelines?
One more question - does ASME B31.4 (code for pipes transporting Hydrocarbons ....& other liquids) apply to both onshore and offshore pipelines carrying crude oil?
In the specific project I am working on...
Has anyone encountered the following Gasket type for a R.F. Welding Neck Flange:
“Non-metal Flat Ring, Tanged Graphite”
I am trying to do the flange leakage calcs on a raised face flange connection with this type gasket. One of the controlling parameters for this calc is the “Min. Design...
Hi gents,
When performing pipe stress analysis in accordance with B31.3 code, one would usually combine the "displacements" due to settlement of a supporting structural foundation or a Tank foundation with the Operating Load and end up with the following load combinations to check the loads and...
Hi everyone,
I had, inappropriately, posted thread378-144736 on piping & fluid mechanics forum and I haven't received any replies on the posted subject matter. Anyhow, I am hoping to get a response from this forum. Any input on your part is appreciated.
regards,
drno
Hi everyone,
I had, inappropriately, posted thread378-144736 on piping & fluid mechanics forum and I haven't received any replies. Any input on your part is appreciated.
regards,
drno
I guess I should have directed this question to those who own a copy of “CASTI Guidebook to ASME B31.3”.
Anyhow, here is my question: Trunnions or dummy elements welded to a straight run pipe and serving as pipe supports will develop certain moments and respective stresses(longitudinal &...
