Exchangers make the heat transfer by means of convection. 

They are equipment with a more compact design, which allows a quick and easy assembly. 

In a heat exchanger the tube bundle is fixed to the frame that contains it, so avoiding possible breaks as a consequence of the different thermal expansions between the bundle and the frame, adding compensators or bending the bundle tubes.

Use criteria:

Not very high gases temperature, near 700-750 ºC. When a duct to put the tube bundle in is not available.

Applications:

Solvent incineration installations in the automotive industry, cogeneration installations, metal and plastic surfaces treatment installations, etc.