One of our client requirements is to provide a shell manhole for IFR inspection. This manhole will be place on the shell at 3m elevation from the bottom plate.
They tanks will be equipped with a Carbon Steel Full Contact Floating Roof. Class I products are considered to be stored in these...
Thanks all for your valuable advices.
Actually let me clear my scenario to avoid confusions as raised above:-
The tank design pressure of 13Kpa is because the service product vapour pressure is about 10Kpa at 40degC, and to apply a positive pressure on the top of the product and by considering...
For a ASME Sec VIII div 1 vertical vessel, is there any dia and height limitation, Why my concern is due to the space constraints we have a requirement of vertical vessel having 400 m3 capacity. So the vessel dimension will be 6m(dia) x 12m(height). i couldn't find any size limitation mentioned...
Dear All,
I need your advice on how to calculate the external design pressure for a API 650 tank, tank details are as follows:-
Tank Size - 30m (dia) x 25m (height)
Service - Aviation Fuel
Internal Design Pressure - 13 Kpag.
Remarks - The internal design pressure is finalized based on the...
Dear LittleInch,
Sorry for the incomplete reply.
Actually from above responses from experts it is understood that no code (API 650/API 653) provide us the guidance for the buckling limit, and i checked with our site QAQC team as well to understand the buckling rate and root cause for the...
Thanks all,
Actually the tank dia is 72m with double deck CS EFR, Bottom plate of EFR is flat with out any slop and top plate have slop of 1:64 towards the drain sump, The tank is designed to handle crude oil.
I got answer to my question from above threads, Thanks all.
Dear Dhurjatu Sen,
Thanks for your response, Actually the client is asking for the code reference for the allowable buckling limit for EFR. so please share any other related marine/ offshore standard/code or any company specification for the same.
Dear All,
What is the acceptable buckling range for the External Floating Roof(EFR)Deck Plates.
In my Double Deck EFR, The buckling is occurred due to the weld imperfection, I would like to know the acceptable criteria/limit for the buckling. The buckling is happened in the bottom side of EFR...
We are modifying an Existing vessel (20 years old), Modification scope is replacing the existing boot with new one of large size. I would like to know after modification wheather the vessel can be done for the full hydro test or only the modified portion to be hydro tested.??
I want to modify an existing vessel, Vessel Length 10m (T/T) And Dia 3.5m.
Saddle analysis is failing since the bending stress at the horn of saddle is failing for the operating case.
I have checked in in the Dennis-R-Moss, And is mentioned that stiffener can be provided to reduce the bending...
for the existing vessel (build in 1999) having dia 3m and Length (T/T) 8m.
this vessel to be modified to meet the new process requirement.
Calculation is not available, So i tried to design using PVElite. When i run the calculation for the saddle anlaysis in operating condition the below...
I would like to know that for a horizontal pressure vessel having shell thickness of 14mm only.
1. Whats will be the maximum allow nozzle neck thickness, Is there any maximum limit in ASME Sec VIII Div 1.?
2. Is it allow to use nozzle with thickness of 20 mm?
In actual case i want to design...
i need to design boot for Pressure vessel using PVElite,
So i design the boot as nozzle and instead of flange i put dished end.
My concern is since the boot height is very large i need to provide stiffener ring (minimum two no.).
Anyone please advise me how to insert this stiffening ring for...
