Carbon Steek Vs. Stainless Steel for Heat Exchanger Shell
Carbon Steek Vs. Stainless Steel for Heat Exchanger Shell
(OP)
I work in a pulp mill. I am upgrading an existing heat exchanger- vertical configuration) that handles Black Liquor in the tubes(304L) and water on shell side(Carbon Steel).
The cooler is in operation for 20 years and inspection reveal Micro Biological corrosion (MIC) at the bottom of the tubes. This has thinned both the shell and tube.
We have decided to go for 2205 tubes which have better resistance to MIC.
My question is: Would it be worthwhile to change the shell to SS, both in terms of life and cost?
The cooler is in operation for 20 years and inspection reveal Micro Biological corrosion (MIC) at the bottom of the tubes. This has thinned both the shell and tube.
We have decided to go for 2205 tubes which have better resistance to MIC.
My question is: Would it be worthwhile to change the shell to SS, both in terms of life and cost?





RE: Carbon Steek Vs. Stainless Steel for Heat Exchanger Shell
RE: Carbon Steek Vs. Stainless Steel for Heat Exchanger Shell
So, unless you think your water treatment is uncontrollable or likely to get worse, you know your rate of thinning and can compensate accordingly. SS is not a silver bullet. It has its own issues, especially with crappy water.
rmw
RE: Carbon Steek Vs. Stainless Steel for Heat Exchanger Shell
rmw
RE: Carbon Steek Vs. Stainless Steel for Heat Exchanger Shell
RE: Carbon Steek Vs. Stainless Steel for Heat Exchanger Shell
RE: Carbon Steek Vs. Stainless Steel for Heat Exchanger Shell