Define maximum allowable working pressure, Mechanical Engineering

Assignment Help:

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.


Related Discussions:- Define maximum allowable working pressure

Sialons, Sialons Mixture of silicon nitride, aluminium nitride and alu...

Sialons Mixture of silicon nitride, aluminium nitride and alumina is hot pressed to acquire a product largely called as sialon. In the resulting product the structure has part

Classification of steam engine , CLASSIFIC A TIO N: (1 )  In acco...

CLASSIFIC A TIO N: (1 )  In accordance to Cylinder Axis: Engine can be vertical or horizontal. (2 )  In accordance to action of steam: Can be single acting or doub

Discover ratio of the torsional strengths, Discover ratio of the torsional ...

Discover ratio of the torsional strengths: A hollow shaft of inner diameter is 1/2 × the outer diameter & a solid shaft of diameter is the external diameter of the hollow shaf

Define the process of otto cycle, Define the process of Otto cycle The...

Define the process of Otto cycle The Otto cycle is the ideal air standard cycle for petrol and gas engine. It having of four processes. Process 1 to 2 is isentropic comp

Necessity of battery , Necessity of Battery To obtain power for ig...

Necessity of Battery To obtain power for ignition system. To obtain power for lighting. To obtain power for horn. To obtain power for self-starting.

Define the nature of force in a member of truss, Define the nature of force...

Define the nature of force in a member of truss: How can you define the nature of force in a member of truss? Sol.: We know that whenever force is applied on a cross se

Arc blow, ARC BLOW In certain cases depending upon where the return pa...

ARC BLOW In certain cases depending upon where the return path connections are given for the arc current, the arc may be deflected towards a direction of weaker electro magnet

Determine the resultant of the system of forces, Determine the resultant of...

Determine the resultant of the system of forces: Four forces act on a body as illustrated in Figure. Determine the resultant of the system of forces. Figure Sol

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd