Tube-in-tube heat exchanger

A tube-in-tube heat exchanger is a type of heat exchanger that consists of two concentric pipes, where one pipe is placed inside the other. The inner pipe carries one fluid, while the outer pipe carries a different fluid. Heat is transferred between the two fluids through the wall of the inner pipe.
tube-in-tube heat exchangers are specifically designed for heating and cooling of sludge that contains fibers and particles, making it ideal for most wastewater sludge.

Advantages
l Compact Design: The concentric arrangement saves space compared to other heat exchangers, making it ideal for applications where space is limited.

l Separation of Fluids: The two fluids do not mix, making the pipe-in-pipe heat exchanger suitable for situations where contamination or mixing of fluids must be avoided.

l High Pressure and Temperature Resistance: This design is often used in high-pressure, high-temperature environments, making it suitable for industries such as oil and gas or chemical processing.

l Simple Construction: Compared to more complex heat exchanger designs, the pipe-in-pipe system is relatively simple to manufacture and install, making it cost-effective in certain applications.