Mass transfer at a pipe inlet zone in relation to impingement corrosion |
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| Affiliation: | 1. Department of Electrical & Computer Engineering, Old Dominion University, Norfolk, VA, United States;2. Department of Physics, William & Mary, Williamsburg, VA, United States;3. Department of Mathematics and Physical Sciences, Rogers State University, Claremore, OK, United States;4. Plasma Science and Fusion Center, MIT, Cambridge, MA, United States;5. Department of Physics, University of Hawaii, Manoa, HI, United States;1. Joint Institute for High Temperatures, 17A Krasnokazarmennaya St, Moscow 111116, Russia;2. University of Tyumen, 6 Volodarskogo St, Tyumen 625003, Russia;3. Department of Chemical Engineering, Biotechnology and Materials, Engineering Science Faculty, Ariel University, Ariel 40700, Israel;1. Research Group (Environmental Health), Sumitomo Chemical. Ltd, Hyogo 665-8555, Japan;2. Graduate School of Science and Engineering, Ritsumeikan University, Shiga 525-8577, Japan;3. University of Engineering and Technology, Vietnam National University, Hanoi, Vietnam;4. School of Mechanical and Electrical Engineering, University of Southern Queensland, Australia |
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| Abstract: | Rates of mass transfer required to predict the rate of diffusion controlled corrosion of the inlet zone of a tube fitted with a perpendicular inlet nozzle were studied using the diffusion controlled dissolution of copper in acidified FECl3. Variables studied were inlet nozzle diameter, solution velocty and physical properties of the solution. The rate of corrosion of the tube inlet zone was found to increase with decreasing inlet nozzle diameter and increasing solution velocity. The mass transfer coefficient of the diffusion controlled corrosion of the tube inlet zone was related to different variables by dimensionless equations. Implications of the present results to the design and protection of pipelines against corrosion in industry is highlighted. |
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