Why are shell-and-tube heat exchangers so common?

Shell-and-tube heat exchangers are common for several reasons:

Versatility: They can handle a wide variety of fluids, temperatures, and pressures, making them suitable for many different industries and processes.

High heat transfer capacity: They are capable of achieving efficient heat transfer, meeting the demands of various applications.

Reliability: They have a relatively simple and robust design, ensuring long-term reliable operation.

Easy maintenance: Components can be accessed and replaced relatively easily when needed.

Widely available: Due to their popularity, they are readily available in the market, and there is extensive knowledge and experience associated with them.

Customizability: They can be customized to specific requirements, such as different tube diameters, lengths, and configurations.

Cost-effectiveness: In many cases, they offer a good balance between performance and cost.

Proven technology: They have been used for a long time and their performance and behavior are well understood.