Shell & Tube Type Heat Exchanger consists of a group of tubes inside the heat exchanger. The
hot water flows through the internal tubes and cooling water circulates through the space
between the internal tubes and the shell.
It is a large tube (shell) which surrounds several smaller tubes (a bundle). One fluid passes
through the shell, and the other fluid passes through the tube bundle, therefore
transferring heat. Baffles around the bundle help to create a turbulent mixed flow. The
Service unit provides hot and cold water to the heat exchanger and all the instruments
needed to measure its performance. All fluid connections to the heat exchanger are selfsealing
quick connectors – for safety and simplicity. The hot and cold fluid streams have
different connectors to reduce errors.