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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.
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.
The background for the oil storage tank failure is as follows: the tank involved was a four million gallon circular tank that was built in 1940 for Ashland Oil Company in Cleveland
(a) Draw neatly and accurately the Merchant force circle diagram. Mention clearly the forces involved, the constructional steps and the assumptions made [do not derive the forces]
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A load cell based on a simply-supported beam with rectangular cross-section is shown below. The beam is made using a tool steel alloy with E = 200 GPa, ν = 0.285. Two strain gages
Q. Examination requirements and acceptance criteria for weld? Examination requirements and acceptance criteria shall be in accordance with ASME Code, and the requirements of th
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how degree of super heat reduces specific steam consumption
Determine the process of modelling The process of modelling is much easier, if mathematical description of an object, or at least of part of an object may be applied. In the fi
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