| Double pipe heat exchangers are the simplest of all types. They are fabricated from two pieces of pipe – one inside the other. One fluid flows through the inner pipe while the second fluid flows through the annulus between the pipes Advantages •Inexpensive •True counter current or co-current flow •Easily designed for high pressure service Typical Applications Single phase heating and cooling when the required heat transfer area is small. Can be used for heating using condensing steam if fabricated with elbows to allow expansion |
