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Q. Define Maximum Allowable Working Pressure?
The MAWP to be marked on the Section VIII nameplate is defined as the maximum gauge pressure permissible at the top of a completed vessel in its normal operating position at the designated coincident metal temperature for that pressure. This MAWP may be determined from the design pressure or from calculations, based on the specified nominal component thicknesses, reduced by the specified corrosion allowances.
The maximum permissible set-to-operate pressure of a single safety relief device cannot be higher than the MAWP.
A suitable margin consistent with the uncertainties with which the true maximum mean-metal temperature can be determined should be included. The design temperature for vessels shall be the maximum temperature for which a reduction in maximum allowable stress is not required (6500F (3430C) for carbon steel). If there is a limiting appurtenance, vessel design metal temperature shall be the maximum temperature allowed for that appurtenance at design pressure.
Convert the flow-rate from Am3/h to Sm3/h Consider a compressor (model ABC-Z4). The compressor has a suction pressure of 3 barg, and a discharge pressure of 6 barg. The inlet
Files: Files are used to remove excess metal by cutting action. These can be classified according to their length, shape, cross-section.
Force required to start the roller: A roller shown in the figure given below is of mass 150Kg. What force T is required to start the roller over block A ? Sol.: Let
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.
what is green chemistry with diagram
Q. Design Wellheads and Wellpads? Hydrocarbon-producing wellheads and wellpads shall be located in open, well ventilated areas with as much segregation from other critical equi
Home work
Q. What do you mean by Filler metals? Use filler metal that is similar in chemistry, corrosion resistance, and mechanical properties of the base metal being welded. Filler m
Q. Define Oxidation Process? Oxidation is defined as a loss of electrons, as when a metal goes from the metallic state to the corroded state. When a metal reacts with oxygen,
Find the Location of the Centroid a) Write the integrals for the determination of the location of the centroid of the area shown in Figure-(a). Only set up the integral.
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