Spiral Heat Exchanger

[ZaxMin]

Actually how do we design spiral heat exchanger?? The spiral heat exchanger tube is buy from other supplier and install in (correct me if I'm wrong), so can I design the spiral heat exchanger by using the same method to design the shell and tube heat exchanger (fixed stationary)??

 

[MJCronin]

"The spiral heat exchanger tube is buy from other supplier and install in" ??????

Be careful of your terminology and exactly what you mean...

Spiral heat exchangers have been around for a long time, have been used for extreme fouling service and are constructed with two parallel flat plates.

They look like this:

http://www.alfalaval.com/solution-f...at-exchanger/Pages/Spiral-heat-exchanger.aspx

I believe that you are interested in something different that this.

Please try to explain a little better....

MJCronin
Sr. Process Engineer

 

[KvdW]

Zaxmin, I guess you are referring to tube-in-tube heat exchangers, where the outer surface of the inner tube has a spiral on the surface to promote turbulation and thus heat transfer. See

http://www.redenko.com/products/tube-heat-exchangers/spiralex-spiralised-tubular-heat-exchangers/

These exchangers are for instance used in food industry (like heating/cooling for pasteurization and UHT) to maximize counter current heat exchange with product on both sides, which requires good cleanability and drainability on both sides.

Typically you would purchase an entire heat exchanger, not only the inner tubes.