Cross Flow Tube Heat Exchangers [CFTHE] are designed for systems that require heat transfer between two air streams without them being mixed. Compared to cross flow plate heat exchangers, in the CFTHE, heat energy is exchanged via thin smooth tubes, usually made of stainless steel of various diameters and thicknesses according to the required performance.
In the DAV Airy the tubes are coupled to tube-sheet by mechanical expansion, which guarantee a seal level up to 99% and are easy to clean, either manually or by automatic systems. Therefore, DAV Airy is the ideal and cost-effective solution for preheating fresh air by recovering thermal energy from exhausted air with a high fouling factor.
Typical applications are paper mills, industrial kitchens, foundries, suction of welding fumes, etc. By varying the pipes length and the number of passages across pipes, it is possible to achieve an efficiency level up to 80%.