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

Thermodynamics, we can use in proove of energy is a propertyof system we ca...

we can use in proove of energy is a propertyof system we can use (E) instead of (dQ-dW)

Specific properties of a system, Specific Properties of a System The ex...

Specific Properties of a System The extensive properties while estimated on the unit mass basis result in intensive property that is as well known as specific property. For exa

Explain the hydrostatic pressure, Explain the Hydrostatic Pressure Hydr...

Explain the Hydrostatic Pressure Hydrostatic Pressure also called Pressure because of Depth of a Fluid. It is required to define the pressure exerted by a static fluid column o

Basic components of engine , Basic Components of Engine: The major compone...

Basic Components of Engine: The major components of the engine and their functions are briefly given hereunder. Figure shows a cut model of motorcycle engine, where various intern

Test, test test teste teste teste tester

test test teste teste teste tester

Importance of angle of twist, Importance of angle of twist: Q: What i...

Importance of angle of twist: Q: What is the importance of angle of twist? From relation T / J = G. θ / L ;  we have               θ= T . L / G . J As G , L , J

General safety and service tips, In general safety and service tips, you le...

In general safety and service tips, you learnt about general service and safety tips those must be followed while working in workshop. It gives the competency statements useful for

Thermodynamics, Convert the following readings of pressure to KPa absolute,...

Convert the following readings of pressure to KPa absolute, assuming that the barometer reads 760mm Hg: (a) 100 psig, (b) 8in. Hg vacuum, and (c) 76in Hg gage.

Governors, What do you mean by sensitivity in a governor?

What do you mean by sensitivity in a governor?

Powder metallurgy, why pre sintering needed in powder metallurgy

why pre sintering needed in powder metallurgy

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