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Q. External Pressure Design of unfired pressure vessels?
Determine requirements for external pressure based on the expected operation of the vessel, and add a suitable operating margin to establish the external design pressure and coincident temperature.
Consideration must be given to the effects of introducing air into the vessel, if vacuum relief devices are used. Vessels in steam service shall be designed for full vacuum, and consideration shall also be given for vessels in services that may be subject to steam out.
Required stiffening rings for shells under external pressure shall be placed on the outside of the vessel, have a thickness not less than 3/8 in (9.5 mm), and have a ring width-to-thickness ratio no greater than 10. Stiffening rings shall be attached by continuous fillet welds on both sides of the ring.
Gas Flow Rates Shielding gas flow requirements are based on cup & nozzle size, weld pool size & air movement . Generally, the flow rate increases in proportion to the cross s
Q. Design Ventilation Systems for plant? While some natural ventilation may sometimes be used, a pressurized HVAC (heating, ventilation and air-conditioning) system is more typ
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Evaluate total extraction: The steel tie rod 50mm in diameter and 2.5m long is subjected to pull of 100 KN . To what length the rod must be bored centrally so that total ext
All equipment that is critical to the plant's safety support; should always be located in a Safe Area (e.g. fire pumps, instrument/electrical equipment and an Emergency Assembly Ar
I require design procedure of Conjugate Cams
Gathering Lines: A gathering line, also called a ladder track, is one into which a number of parallel tracks merge. This is shown in Figure. It is used in marshalling yards.
Consider a particle and its path of travel.The position of a particle P at any time t can be described by specifying its: (a)Rectangular coordinates; X,Y,Z (b)Cylindrical coordinat
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