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

Cam-cam illustrations, Cam This is a mechanical member that imparts mot...

Cam This is a mechanical member that imparts motion to another member called follower. Illustration: A cam is rotating at regular speed of 1200 rpm in the clockwise d

co2 welding, CO2 Welding CO2 Welding is a variation of GMAW. Here the ...

CO2 Welding CO2 Welding is a variation of GMAW. Here the inert gas is replaced by gas mixtures or carbon dioxide, which are chemically active. The carbon dioxide decomposes in

Illustrate the structure of set, Illustrate the structure of SET SET al...

Illustrate the structure of SET SET allows the exchange of data between different CAD/CAM systems and also between CAD/CAM systems and central data banks. It features a much mo

Evaluation the enthalpy of steam - thermodynamics, Evaluatio n the Enthalp...

Evaluatio n the Enthalpy of Steam: Let h f   = Heat of liquid or sensible heat of water in KJ/kg h f g   = Latent heat of vaporization of steam in KJ/kg t

Axial flow turbine, The mass flow rate is 28kg/s in an axial flow gas turbi...

The mass flow rate is 28kg/s in an axial flow gas turbine that develops 3.5MW. The stagnation conditions are 780KPa and 730 deg.C. at the entry. At the exit of the nozzle, the stat

Deadlock-able non-resolvable net system, See the Petri net represent in fol...

See the Petri net represent in following figures (a) and (b) as represented in the figure for analysis and depiction of qualitative pathological behaviors. Figure: (a): An

Find the maximum shear stress at free end, Find the maximum shear stress at...

Find the maximum shear stress at free end: A stepped shaft ABCD, with A is fixed end and D is free end. AB = 1 m, BC = 2 m, CD = 1 m. AB is a hollow shaft of 100 mm outer diam

Determine reactions on compound beams , Determine reactions on compound bea...

Determine reactions on compound beams: Determine reactions at the support A , B , C , and D for arrangement of compound beams shown in the figure given below.

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