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

Explain single piece pattern, Single piece pattern These are inexpensiv...

Single piece pattern These are inexpensive and the simplest type of patterns. As the name indicates, they are made of a single piece as shown in Figure.2.2 this type of pattern

GOVERNORS, Explain Wilson HArtnell Governor

Explain Wilson HArtnell Governor

System of parallel forces - mechanics, System of parallel forces: A r...

System of parallel forces: A rigid body is subjected to system of parallel forces as shown in the figure. Reduce this system to, ( i ) A single force system ( i

Describe cool storage and coal preparation technique, Illustrate in brief t...

Illustrate in brief the types of power plant? Illustrate the factor to be considered for site selection in hydro power plant? a) Compare stream power plant with hydro power p

Air-conditioning guidelines, The following guidelines are intended to assis...

The following guidelines are intended to assist the HVAC lead, designer or auditor in preparing an assessment of the quality of the HVAC engineering work for a specific project. T

Thermocouple, calibration curve standard temparature vs indicator tempratur...

calibration curve standard temparature vs indicator temprature.

Effect of parameters in flash butt welding, Effect of parameters in flash b...

Effect of parameters in flash butt welding Flashing Feed Rate : If excessive, there is a probability of the parts freezing together without welding. If this is insuffic

What do you understand by interference, (a) Derive a mathematical expressio...

(a) Derive a mathematical expression for Maximum length of path of Contact, Maximum Length of Arc of Contact and Contact Ratio in case of Interference. (b) What do you understan

What is the tessellated modellers, Tessellated Modellers    Solid Model...

Tessellated Modellers    Solid Modeling This describes a class of simplified boundary-representation modellers which approximate to curved faces by a number of plane faces. Sin

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