I found a Ken Wind; at one time, he owned his own company; I had bought an indirect water bath heater from him once.
I believe that he has since hired on with the Hanover Company, Houston, TX.
Remove pressure, displace hydrocarbon liquids (push with water or nitrogen into waiting vacuum trucks), check sedimentation in bottom of vessels and tanks for NORM, check protective coatings for lead based paints, unflange and remove all above-ground piping & concrete, remove caliche, rock...
It is ALWAYS a good idea to check any computer calculation by hand. For the hand calculation, consider looking up Formulas for Stress and Strain by O'Rourke. They have formulas for bending if square, rectangular, round, oval, etc. plate for many, many, many boundry conditions.
Happy Hunting.
Having done numerous calculations, it is no wonder you show that no added repad is required. This is because there is more wall thickness than required for pressure alone; the difference is credited to reinforcement. The driver of course is the 99 psig. The answer would be entirely different...
Why take credit for the soil? If the soil is saturated, it offers no resistance to vertical movement of objects placed in it. Think of an air-filled object being in water and the force trying to push it up to the surface. Now, displace that water with a water-mud slurry. What do you get...
Learn how to type and spell correctly. Inattention to small items reflect badly upon the writer. Now that you are an engineer (chemical, civil, electrical, process, etc.) spell (and type) all communications.
For the horizontals, the worst loading case is using the full width of pipe rack that is fully occupied by 8 inch NPS pipe that are 100% filled with water.
To the verticals, include fire-proofing, fire extinguishers, electrical & instrumentation end devices, utility piping, etc.
If you goal is...
Consider inlet gas temperature (keep it as low as possible).
Consider inlet gas pressure (keep it as high as possible).
Consider inlet gas separation and filtering (keep out lube oils and amines).
Calculate water removal (lbs/mmcf times mm/d); start with 3 gallons of glycol circulation for...
API 1102 5th Edition is based on Spangler; API 6th Edition (current) is based on research by GRI/Cornell University. One should do the calculations per this methodology by hand the first time to understand, but thereafter by excel spreadsheet or software program. Or, contact a consultant.
Soil is not rigid; rather, it is a sem-solid liquid, per my college professor. When pushed upon, it moves, albiet almost impercetably, yet, it moves. In fact, most footings, foundations, etc. have designs that are not based on strains and stresses as we spend so much time learning, but rather...
This approach very simply assumes that all uplift forces are applied at the bolts. That's fine, but your efforts do not end there. One must also consider uplift forces beneath the tank because external fluid pressure will be exerted there because the tank edges do not form a seal. Do not...
Is the cylinder double acting? or SACE? or SAHE?
Have you (or had someone else) check for rod load? and for rod load reversal?
Have you verified that lubricating oil in the manufacturer's quantity and quality have been supplied?
Be sure that in case the tank is empty and the area around the tank is full of liquid that the tank will not float. One does this by bolting the tank down to a foundation (ring wall, slab, piles, etc.).
Buckling does not control steel pipes. Look at API 1102. This calculates stresses and compares them against an allowable. The criteria therein are based on limiting the vertical deflection to less than 3% of its outside diameter when subjected to combination of dead and live loads with full...
What are you looking for? Once the line goes over about 14 feet, even with the worst soils and thinest pipes, the live load contribution to pipe stresses are very, very small.
What is E&M?
Have you tried websearching on AREMA? That replaces the old AREA group. They deal with railroad...
Poseilus: You want quick and dirty? Call several "previously owned" equipment vendors and ask what they have. Or, call a big new vessel manufacturer and ask for the size of several recently built tanks.
