Menu
Search
Filters
Close
Menu

Save 20% on select titles with code HIDDEN24 - Shop The Sale Now

97276 COMPARISON OF ECN AND EIS MEASUREMENT FOR CORROSION MONITORING UNDER MULTIPHASE FLOW CONDITIONS

Picture for 97276 COMPARISON OF ECN AND EIS MEASUREMENT
Available for download
Product Number: 51300-97276-SG
ISBN: 97276 1997 CP
Author: Y. Chen , M Gopal, W.P. Jepson, H. Chen
$0.00
$20.00
$20.00
Electrochemical Noise(ECN) and Electrochemical Impedance Spectroscope (EIS) measurements were made simultaneously in a 75 mm I.D., 10 m long acrylic pipeline using salt-water/carbon dioxide mixtures. Full pipe flow was studied for liquid velocities of 0.5,0.75, 1.1, 1.5 m/s and slug flow for Froude numbers 4, 6 and 9. Experiments were carried out at a constant pressure of 136 kPa and temperature of 40°C. ECN data were measured with a fast auto zero resistance ammeter. The ECN technique is able to detect changes in flow regime, showing distinct differences between fill pipe flow and slug flow. The choice of sampling rate when using ECN is very important. For slug flows, sampling rates as high as 100 Hz are necessary to include most of the transients in the flow. Distinct differences can be seen in the Fast Fourier Transforms where dominant frequencies exist which correspond to possible bubble action in the slug body. EIS can be used to measure corrosion rate in muhiphase flows. It does show an increase in the corrosion rate with liquid flow rates for fill pipe flow and Froude numbers for stationary slug flow. A simple statistical analysis of ECN response gives a correlation with corrosion rate. These show ECN could be a very powerful tool for determining corrosion rate and corrosion mechanism in multiphase flow.
Electrochemical Noise(ECN) and Electrochemical Impedance Spectroscope (EIS) measurements were made simultaneously in a 75 mm I.D., 10 m long acrylic pipeline using salt-water/carbon dioxide mixtures. Full pipe flow was studied for liquid velocities of 0.5,0.75, 1.1, 1.5 m/s and slug flow for Froude numbers 4, 6 and 9. Experiments were carried out at a constant pressure of 136 kPa and temperature of 40°C. ECN data were measured with a fast auto zero resistance ammeter. The ECN technique is able to detect changes in flow regime, showing distinct differences between fill pipe flow and slug flow. The choice of sampling rate when using ECN is very important. For slug flows, sampling rates as high as 100 Hz are necessary to include most of the transients in the flow. Distinct differences can be seen in the Fast Fourier Transforms where dominant frequencies exist which correspond to possible bubble action in the slug body. EIS can be used to measure corrosion rate in muhiphase flows. It does show an increase in the corrosion rate with liquid flow rates for fill pipe flow and Froude numbers for stationary slug flow. A simple statistical analysis of ECN response gives a correlation with corrosion rate. These show ECN could be a very powerful tool for determining corrosion rate and corrosion mechanism in multiphase flow.
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 02501 ENHANCED MASS TRANSFER AND WALL...
Available for download

02501 ENHANCED MASS TRANSFER AND WALL SHEAR STRESS IN MULTIPHASE SLUG FLOW

Product Number: 51300-02501-SG
ISBN: 02501 2002 CP
Author: Hongwei Wang, Tao Hong, Ji Yong Cai, William Paul Jepson, and Christoph Bosch
$20.00
Picture for 99046 EFFECT OF MULTIPHASE SLUG FLOW ON THE
Available for download

99046 EFFECT OF MULTIPHASE SLUG FLOW ON THE STABILITY OF CORROSION PRODUCT LAYER

Product Number: 51300-99046-SG
ISBN: 99046 1999 CP
Author: MADAN GOPAL and SATHISH RAJAPPA
$20.00
Picture for 02340 THE STUDY OF INHIBITOR PERFORMANCE IN...
Available for download

02340 THE STUDY OF INHIBITOR PERFORMANCE IN MULTIPHASE FLOW USING ELECTROCHEMICAL NOISE MEASUREMENT

Product Number: 51300-02340-SG
ISBN: 02340 2002 CP
Author: Hongbin Wang, Cheolho Kang, and Paul W. Jepson
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support