Thinning Rate

No I don't think so, there are too many variables, including water quality and treatment and proper maintenance procedure....

http://www.researchgate.net/publication/236170865_A_risk_approach_to_the_management_of_boiler_tube_thinning

Dear Mr. vandie,

Pl. read by opening the following links, and I hope it will be useful to you.

1. http://www.jsm.or.jp/ejam/Vol.4No.2/AA/SP6/AA42.pdf

2. https://books.google.co.in/books?id=yuHzIYYABBsC&pg=PA16&lpg=PA16&dq=*metal+thinning+rate*&source=bl&ots=7ut66rQoP7&sig=VVQnvdt37sfhSgYn1Vp72w9pph8&hl=en&sa=X&ved=0CBsQ6AEwADgKahUKEwiz5NbuxofIAhVQWY4KHdBcARg#v=onepage&q=*metal%20thinning%20rate*&f=fals

3. http://irep.iium.edu.my/2018/1/92_M.pdf

4. https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&uact=8&ved=0CCkQFjACahUKEwikv83m2IfIAhUFBI4KHexzADI&url=http%3A%2F%2Fwww.jsm.or.jp%2Fejam%2FVol.4No.2%2FAA%2FSP6%2FAA42.pdf&usg=AFQjCNE8ovMyYTV7lj2F8rLwTlmkvVeGYA

5. https://books.google.co.in/books?id=NGwEVIVIt7EC&pg=PA89&lpg=PA89&dq=*metal+thinning+rate&source=bl&ots=FbkHCJr78H&sig=b4BUsGVQ-_51ITtnpefhymFxASE&hl=en&sa=X&ved=0CDIQ6AEwBDgKahUKEwikuLma24fIAhXGjSwKHa48Atw#v=onepage&q=*metal%20thinning%20rate&f=false

6. https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=21&cad=rja&uact=8&ved=0CBsQFjAAOBRqFQoTCNWQhdLbh8gCFUWQLAodSlEC3g&url=http%3A%2F%2Fwww.twisoftware.com%2FEasysiteWeb%2Fgetresource.axd%3FAssetID%3D1901789&usg=AFQjCNHqGtSRZYCIaRcem1HyoWaVrB_CzQ&bvm=bv.103073922,d.c2E

DHAYANANDHAN.S

Vandie, I think you have to quit thinking ideal.

This is the real world where ideal equations deviate. It needs routine sampling.

I can't say for sure if there is any formulae that will predict the rate of thinning of boiler tubes. As an engineer for many years, and with a vast amount of experience with boiler unit operations, I am confident that boiler water chemistry plays a vital part in boiler tube erosion, corrosion, scaling resulting in boiler tube failure. No amount of mathematical calculation will prevent tube failure. Maintaining boiler water chemistry according to ASTM for your boiler operating at certain pressure will at least prolong the life of your tubes. Frequent testing and maintain proper Total Dissolved Solids by blow-down. Exercising proper chemical dosing and the type of oxygen scavengers used in boiler water and filming amines in the vapour phase will contribute to longer tube life. Another useful tool is using - corrosion coupons. Speak to your water conditioning company. Planned maintenance and periodic boiler tube inspection is vital. Again speak to your water conditioning company, they will have ultra sound equipment to detect boiler tube failures.

Regards

Sach Paruth

TEK-MATION College of Technology

Hi Vandie,

Do not search for a shortcut. If you find one, ensure you are in the right path.

If you are an Engineer, if you are into maintenance, you would agree that periodical inspection can never be skipped. If you ignore, it would cost you much more than what you attempt to save or imagine.

"Think practical and just not theoretical" is a way to find such solution yourself.

Regards,

Srijit

(Fear of being criticised often keeps us away from doing foolish acts)