Process of corrosion in bfw tank, Mechanical Engineering

Assignment Help:

Q. Process of Corrosion in BFW Tank?

The feed to the BFW Tank is hot and will be flashing when it enters the tank. The vapours will be corrosive when the tank is open to atmosphere as water vapour at the top will be saturated with oxygen and high corrosion rate is expected.

In order to minimize the corrosion in BFW Tank it is necessary to keep oxygen excluded from the system and keep the tank pressurized by an inert gas system. Oxygen ingress will cause the BFW to be corrosive to CS, therefore internal tank coating is recommended. It should be noted due to high operating temperature of BFW feed to the tank, a special blend of coating shall be specified to resist in high temperature full immersion service. If the tank is blanketed and the BFW has already been de-oxidized, there is no need for internal tank coating.

The decision for internal coating shall be assessed on a case by case basis and process and corrosion specialists shall be consulted.


Related Discussions:- Process of corrosion in bfw tank

What is transfer molding, Q. What is Transfer molding? Transfer molding...

Q. What is Transfer molding? Transfer molding was developed largely to avoid the disadvantages found which compression molding. • Transfer molding can make intricate or quit

Cyclic service for vessels, when does the cyclic service apply for pressure...

when does the cyclic service apply for pressure vessels in batch plant (operation)

What is the procedure of carburettor cleaning?, (a) What may happen if carb...

(a) What may happen if carburettor is not serviced at a regular interval? (b) What is the procedure of carburettor cleaning?

Heat treatment of stainless steels, Heat Treatment of Stainless Steels: ...

Heat Treatment of Stainless Steels: Stainless steels, as other steels, react to heat treatments over broad range. They are subjected to one or more of the given heat treatmen

Find out deflection under the load, Find out Deflection under the load: ...

Find out Deflection under the load: A beam of span 4 m is subject to a point load of 20 kN at 1 m from the left support and a Udl of 10 kN/m over a length of 2 m from the righ

Compound BArs, three vertical, parallel straight rods, each 2.6m in length ...

three vertical, parallel straight rods, each 2.6m in length have their upper ends firmly secured and their lower supporting a rigid horizontal bar with a weight of 8KN, which cause

Equation for principal stresses and principal planes, Equation for principa...

Equation for principal stresses and principal planes: Derive equation for principal stresses and principal planes for the element subjected to compound stresses. Sol.:

Define the primitives of b-rep scheme, Primitives of b-rep Scheme The b...

Primitives of b-rep Scheme The building blocks for b-rep. models are : Vertex It is a unique point (an ordered triplet) in space. Edge An edge is a finite, non-

Calculate diameter of shaft in maximum direct stress, Calculate diameter of...

Calculate diameter of shaft in maximum direct stress: A shaft is designed for transmitting 100 kW power at 150 rotation per minute. Shaft is supported in bearings 3 m apart a

Explain the bar and rod drawing - cold drawing processes, Explain the Bar a...

Explain the Bar and Rod Drawing - cold drawing processes In case of bar drawing, hot drawn bars are at first pickled, washed and coated to prevent oxidation. Once it's done

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