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 are the causes of high fuel consumption, (a) What are the causes of hi...

(a) What are the causes of high fuel consumption? (b) How can the problem of "motorcycle pulls to one side" be corrected? (c) How can engine overheating problem be solved?

Determine modulus of resilience, Determine modulus of resilience: A st...

Determine modulus of resilience: A steel specimen of 10 mm diameter & 50 mm gauge length was tested in tension and following observations were recorded. Load at upper yield

Laser sources-lasers with solid state lasing mediums, Lasers with Solid Sta...

Lasers with Solid State Lasing Mediums For an active medium, the solid state laser uses lasing ions which are suspended in a rod shaped solid matrix. These "dopants" in the rod

Applications and disadvantages of electro chemical machining, Applications ...

Applications and Disadvantages of Electro Chemical Machining Disadvantage of Electro Chemical Machining 1. The tools are more difficult to design. 2. Initial cost is hi

Estimate temperature of air at exit from compressor , Estimate temperature ...

Estimate temperature of air at exit from compressor: The air compressor compresses atmospheric air at 0.1MPa and 27 0 C 10 times the inlet pressure. During compression heat

Copper alloys, Copper Alloys Some alloys of copper are employed in ind...

Copper Alloys Some alloys of copper are employed in industry for varying causes. Copper forms alloys along with zinc or the brasses, tin or the bronzes, along with tin and pho

Som, Simple problem on direct stress and Bending stres

Simple problem on direct stress and Bending stress

Heat conduction duhamels method, Procedure for solving a problem using duha...

Procedure for solving a problem using duhamels method

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

Calculate the thickness of the diaphragm, A pressure transducer uses a prob...

A pressure transducer uses a probe to measure the deflection of a thin circular diaphragm, clamped at its periphery and having a rigid seat at its centre to eliminate curvature in

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