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RFA –Cross flow finned pipes heat recovery  unit

 
COS.TER  RFA recovery unit is very similar to the cross flow heat exchanger with smooth pipes.
The finned tubes increase the thermic exchange  on the air side  reducing remarkably the pipes length.
The construction is very flexible, simple and robust, but suitable for gases at  high temperature, both clean and dusty or containing corrosive substances.

Construction specifications:
It can be realized  with iron, carbon steel or stainless steel  finned tubes having a  diameter between 3/4"  and  2 "1/2 .
The choice of the material depends upon  the presence of corrosive agents or on the high temperature of the gases treated.
The shell  is made of thick iron or steel sheet and it is equipped with flanges for connection to  the channels.
The seal between the two flows is ensured by butt welding of the tubes to the tube sheets.
 
Technical specifications:
Regeneration effficiency up to  65% and  more.
The flow rate of  fumes / gases can reach up to  50,000 NMC / h or more.
The pressure drop in standard operating conditions is set  around 300/400 Pa
(water column 30/40 mm) inner smoke side , 100/150 Pa  air side (water column 10/15 mm)
Higher figures can only be  reached at high temperatures, due to the cubical expansion of the air.

Typical applications:
Its technical and construction features, the ease of cleaning (swabbing), the  long life and reliability make it particularly suitable for:

- heat recovery from industrial processes
- pre-filter temperature abatement, etc.

This card is subjected  to perodic updates.

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