Development of an Instantaneous Corrosion Rate Monitoring System for Metal and Metal Alloys in Recirculating Cooling Systems

2012 ◽  
Vol 51 (11) ◽  
pp. 4230-4239 ◽  
Author(s):  
Mahbuboor R. Choudhury ◽  
Ming-Kai Hsieh ◽  
Radisav D. Vidic ◽  
David A. Dzombak
Keyword(s):  
Corrosion Rate ◽  
Monitoring System ◽  
Metal Alloys ◽  
Cooling Systems ◽  
Recirculating Cooling Systems

Biofouling reduction in recirculating cooling systems through biofiltration of process water

2003 ◽  
Vol 37 (3) ◽  
pp. 525-532 ◽  
Author(s):  
K.P.H Meesters ◽  
J.W Van Groenestijn ◽  
J Gerritse
Keyword(s):  
Process Water ◽  
Cooling Systems ◽  
Recirculating Cooling Systems

The Effect of Phosphorous on the Corrosion Resistance of Glassy Copper Zirconium Alloys

1983 ◽  
Vol 28 ◽  
Author(s):  
T.D. Burleigh ◽  
R.M. Latanision
Keyword(s):  
Corrosion Resistance ◽  
Sulfuric Acid ◽  
Corrosion Rate ◽  
Zirconium Alloys ◽  
Amorphous Structure ◽  
Metal Alloys ◽  
Crystalline Defects ◽  
Zirconia Film ◽  
Melt Spun ◽  
Semiconductor Properties

ABSTRACTPhosphorous has been shown to have a beneficial effect on reducing the corrosion rate of various metal alloys. This research was undertaken to determine by what mechanism the phosphorous is able to improve the corrosion resistance of metals. The amorphous copper-zirconium system was chosen for experimentation because the amorphous structure eliminates the complications due to crystalline defects. The zirconium forms zirconia (ZrO2), which is normally a protective surface oxide. Copper-zirconium alloys with and without phosphorous were melt-spun, and were tested in various electrolytes. In comparing Cu-42Zr-2P with Cu-4OZr, the results show that the corrosion rate of Cu-42Zr-2P is lower in 1N sulfuric acid, and significantly lower in 3.5 w/o NaCl, and in 1N HCl. ESCA analysis shows that phosphorous is present in the zirconia film, and has a valence of +5. Photocurrent experiments suggest that phosphorous alters the semiconductor properties of the zirconia film.

Control of biological growth in recirculating cooling systems using treated secondary effluent as makeup water with monochloramine

2012 ◽  
Vol 46 (19) ◽  
pp. 6508-6518 ◽  
Author(s):  
Shih-Hsiang Chien ◽  
Indranil Chowdhury ◽  
Ming-Kai Hsieh ◽  
Heng Li ◽  
David A. Dzombak ◽  
...  
Keyword(s):  
Secondary Effluent ◽  
Makeup Water ◽  
Cooling Systems ◽  
Biological Growth ◽  
Recirculating Cooling Systems
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