AWWA ACE56234

Experiments were conducted to determine the effect of sustained temperature gradients of 20 C on copper pipe corrosion during stagnant conditions. An apparatus was constructed to: apply temperature gradients to the pipes; monitor copper release to the water; and, measure corrosion accelerating currents between the warm and cold sections of pipe. The orientation of the pipe in relation to the temperature gradients determined whether convection currents developed that promoted mixing during stagnation, and this influenced the magnitude of the temperature gradient in the pipe. The temperature gradient led to significant sustained thermogalvaniccurrents. Mixing of the water within the pipe also influenced copper leaching and scale buildup. Includes 7 references, figures.

Product Details

Edition:

Vol. - No.

Published:

06/16/2002

Number of Pages:

11

File Size:

1 file , 340 KB