1994-03-01

A High Efficiency Mechanically Assembled Aluminum Radiator With Real Flat Tubes 940495

The use of oval flat tubes in the Mechanically Assembled Radiators (MAR) has extended the application field of this technology, covering wide range of brazed radiator applications. This second generation of Mechanical Radiators is characterized by oval tubes with a/b ratio greater than 3.0, which allows to approach to the brazed radiator tube shape.
To approach to the flat tube geometry a new mechanically assembled aluminium radiator with real flat tubes has been developed and realized.
The purpose of this paper is to present the development results of a radiator with real flat tubes of mechanical assembled type, named SIRIO, the effect of flat shape on the performances and comparison with relevant oval flat tubes.

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