Print ISSN: 1681-6900

Online ISSN: 2412-0758

Author : Abduallah, Wassan


Control of Corrosion of Copper-Alloy Condenser Tubes by Chemical Treatment

Wassan Abduallah; Nawal Jassim; Qais A.Hassan

Engineering and Technology Journal, 2012, Volume 30, Issue 17, Pages 2951-2965

The present work deals with the study of the factors that affect the corrosion
resistance and heat transfer resistance of treated condenser tubes by surface filming with
ferrous sulfate solution. The reduction of corrosion rate on the filmed surfaces was
determined under dynamic conditions using weight loss method. The variation of the
corrosion rate at different exposure time and different fluid velocities of the filming
solution were studied throughout the laboratory corrosion system. While the effect of
surface filming on depression of heat transfer process in term of increasing the heat
transfers resistance was studied throughout the laboratory thermal system. The results
indicated that the filming solution reduced the corrosion rate of copper alloy to 52.7%,
but the heat transfer resistance increased from 12.88 to 18.73*10-4 m2K/W. Moreover, the
metallurgical investigation clearly revealed the feature and nature of the film formed on
the metal surface.