Question

short introduction about steam to water heat exchanger

Answer 1

The Heat transfer units that use steam for the production hot water are called as indirect heaters. These are generally shell and tube type heat exchangers and referred as converters.

The above figure depicts a general steam to water heat exchanger system.

As these type heaters use steam as their heat source so they are called steam to water converters.

Working of the shell and tube heat exchanger :

1.Steam enters to the heat exchanger shell through the top vapor opening and surrounds the outside of the tubes.

2.The heat transfer then condenses the steam inside the shell forming condensate which drops to the bottom of the HES (heat exchanger shell). The condensate then flows though the bottom condensate outlet.

3.When we remove the latent heat of vaporization, the condensate will be very near to the saturation temperature.

4.Depending on the load of the system, a small subcooling may take place from the bottom of the HE and the inlet piping to steam trap.