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

Metals and melting practices - ladle, Metals and Melting Practices - Ladle,...

Metals and Melting Practices - Ladle, Limestone,Ore,Sinter Ladle : A big bucket utilized as a carrier for molten metal. Limestone : A Blast Furnace raw material that elimi

Shells, SHELLS: In the topic (SHELLS) , we have seen the assumptions ...

SHELLS: In the topic (SHELLS) , we have seen the assumptions made in the analysis of thin shells. For a spherical shell, which is symmetrical in all of the directions, the ho

Describe about consumable electrode, Q. Describe about consumable electrode...

Q. Describe about consumable electrode? This type of electrode is prepared from metal. Its one end is kept in electrode holder and then electric supply is passed through it. Th

Uitra sonic wavea, how will you detect the depth of sea and application?

how will you detect the depth of sea and application?

Evaluate the normal and tangential stresses, Evaluate the normal and tangen...

Evaluate the normal and tangential stresses: Q. 20: At the point in stressed body, the principal stresses are σ x = 80 kN/m 2 and σ y = 40  kN/m 2 . Determine the norma

Piston rings-basic components of engine , Piston Rings: Piston rings (Fig...

Piston Rings: Piston rings (Figure), fitted into the grooves around the piston, provide a tight sealing effect between the piston and the cylinder wall thus preventing leakage of

Reaction forces, If the allowable shear stress for each of the 10-mm-diamet...

If the allowable shear stress for each of the 10-mm-diameter steel pins at A, B, and C is tallow = 90 MPa, and the allowable normal stress for the 13-mm-diameter rod is sallow = 15

Thermodynamics, The attached figure depicts an indirectly fired gas turbine...

The attached figure depicts an indirectly fired gas turbine engine. In the gas turbine engine, air is compressed to a high pressure and then heat is added. The high pressure, high

Design the keys - shear keys, Design the keys - Shear Keys: A solid ci...

Design the keys - Shear Keys: A solid circular shaft is to transmit 200 kN at 200 rpm. If the maximum shear stress is not to exceed 80 n/mm 2 design the shaft. Design the key

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