Mass Transfer Coefficient During Cathodic Protection of Low Carbon Steel in Seawater

Authors

  • Khalid W. Hameed Department of Biochemical Engineering/ Al-Khwarizmi College of Engineering/University of Baghdad
  • Anees Abdullah Khadom College of Engineering/ University of Daiyla
  • Ameel Mohammed Rahman Department of Biochemical Engineering/ Al-Khwarizmi College of Engineering/University of Baghdad

Abstract

The aim of this research is to calculate mass transfer coefficient, kd, during cathodic protection of low carbon steel in neutral seawater (3.5% W/V NaCl in distilled water with pH = 7). Two types of cathodic protection were used:

First: Sacrificial anode cathodic protection (SACP) were a pipeline of steel carrying seawater  using zinc as a sacrificial anode and with variable temperatures ranged (0 – 45oC) and volumetric flow rate ranged (5 – 900 lit/hr). It was found that the kd increases with increasing temperature and volumetric flow rate of seawater, where kd ranged (0.24×10-6 – 41.6×10-6 m/s).

Second: Impressed current cathodic protection (ICCP) technique adopting a rotating vertical steel cylinder in seawater with variable temperatures ranged (0 – 45oC) and rotating velocity ranged (0 – 400 rpm). It was found that the kd increases with increasing temperature and rotating velocity, where kd ranged (7.25×10-6 – 36.82×10-6 m/s).

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Published

2009-03-01

How to Cite

Mass Transfer Coefficient During Cathodic Protection of Low Carbon Steel in Seawater. (2009). Al-Khwarizmi Engineering Journal, 5(1), 20-32. https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/517

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