Bimetallic tubes can be an effective solution for protecting against shell side corrosive environments. A bimetallic tube is made up of two different metals that have different coefficients of thermal expansion, which allows for the tube to have good resistance against thermal stresses.

Special approach to using bimetallic tubes in tube side corrosive environments is to use a corrosion-resistant metal on the outer layer of the tube and a more cost-effective and mechanical resistance metal on the inner layer. This approach provides good corrosion protection on the outer surface of the tube while also being cost-effective.

Another approach is to use a sacrificial metal on the outer layer of the tube. The sacrificial metal will corrode in preference to the inner layer, thereby protecting it from corrosion. This approach is commonly used in heat exchangers, where the shell side is often exposed to corrosive environments.

However, it is important to note that the effectiveness of bimetallic tubes in protecting against corrosive environments will depend on several factors, including the specific corrosive environment, the design of the tube, and the quality of the materials used. It is important to consult with a corrosion specialist to determine if bimetallic tubes are the right solution for a particular application.