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

Welding, Why is the quality of welds produced by submerged arc welding very...

Why is the quality of welds produced by submerged arc welding very good#Minimum 100 words accepted#

Describe pendulum pump mechanism, Describe in detail the following mechanis...

Describe in detail the following mechanisms : (a) Pendulum Pump (b) Crank and slotted lever mechanism Explain in detail the following mechanisms : (a) Elliptical Tramme

Explain the automation in machining, Explain the Automation in Machining? ...

Explain the Automation in Machining? The word "automatic" is derived from Greek and it means "self-moving or "self thinking". The word "automation" has been used to refer to a

Methods of analysis of trusses, Methods of analysis of trusses: What ...

Methods of analysis of trusses: What are the methods of analysis of trusses? What is found when the analysis of a system is done? Sol.:  The forces in the members of

Show geographic constraints of the plant, Q. Show Geographic constraints of...

Q. Show Geographic constraints of the plant? The layout of process units will be influenced by the geographic constraints of the site. Spacing is required between plant facilit

Explain rigid screed extension, Normal 0 false false false ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Design approach of human mobility device, In ME1, you are beginning to deve...

In ME1, you are beginning to develop knowledge of design, materials, and basic machine elements (e.g., power screws, bolted joints, bearings, gears). In addition, you are becoming

Energy balance for a vapor stream, Write down the energy balance for a vapo...

Write down the energy balance for a vapor stream going through a throttling valve (a valve that just reduces the pressure).  State your assumptions. Suppose a nonvolatile materi

Beee, Explain the construction and principles of operations of induction mo...

Explain the construction and principles of operations of induction motor

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