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

What is fictitious force??, A fictious force or pseudo force is an imaginar...

A fictious force or pseudo force is an imaginary force that acts on a body in non inertial frame. it is opposite in direction of accelaration of non inertial frame.

Carburettor in motorcycle, Carburettor: It supplies the air fuel mixture a...

Carburettor: It supplies the air fuel mixture at varying proportions that suits the changing operating conditions of motorcycle. The carburettors for 100 cc and 125 cc motorcycle

Working stress and factor for safety working stress, W orking stress and F...

W orking stress and Factor for Safety Working Stress: Working stress is safe stress taken within elastic range of material. For the brittle materials, it is taken equal to

Evaluate plant load factor, a) Illustrate principal of magneto hydro dynami...

a) Illustrate principal of magneto hydro dynamic system (MHD) with diagram? b) a thermal power plant has two 60 MW units each running for 8000hrs and one 30MW unit running for 2

Efficiency test on sand blasting, Efficiency Test on Sand Blasting:   ...

Efficiency Test on Sand Blasting:             After the study on sand blasting, the result was acceptable and the next step is planning to make order for new machine and searc

Determine the core radius of a multi-mode, Modal Dispersion in Step-Index F...

Modal Dispersion in Step-Index Fibers Determine the core radius of a multi-mode step index fiber with a numerical aperture NA = 0.1 if the number of modes M = 5000 when the wave

Stations in washing system, Washing: Station 1 Loadin...

Washing: Station 1 Loading bay START Station 2 Hot Chemical wash Station 3 Running Cold bath Station 4 Hot C

Cantilevered beam, A cantilevered beam is to be made of 7075-T6 aluminum ...

A cantilevered beam is to be made of 7075-T6 aluminum with a uniaxial yield strength of 469 MPa. The beam is 1m long, and is loaded with the following limit loads: a bending mome

Gears, what is gear kinematics

what is gear kinematics

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