UntitledSource: Journal of Pipeline Systems Engineering and Practice:;2018:;Volume ( 009 ):;issue: 001Author:Angst Ueli M.;Büchler M.
DOI: 10.1061/(ASCE)PS.1949-1204.0000306Publisher: American Society of Civil Engineers
Abstract: By means of numerical modeling and experimental measurements, this work addresses the longstanding controversy of whether or not IR (ohmic) drops need to be considered in on-potential cathodic protection criteria. The results suggest that the IR drop is of little importance in many situations of practical relevance, and that its adverse influence on assessing the effectiveness of corrosion protection is generally overrated. This suggests that on-potentials are in principle suitable to be directly used for determining if a cathodic protection (CP) system offers adequate corrosion protection. This is considered a relevant finding because on-potentials are straightforward to measure, and their interpretation is free of many of the difficulties associated with instant-off potentials. Irrespective of the parameter used, however, a number of issues are discussed that need to be addressed in further work in order to provide the knowledge required to settle on threshold values.
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| contributor author | Angst Ueli M.;Büchler M. | |
| date accessioned | 2019-02-26T07:34:39Z | |
| date available | 2019-02-26T07:34:39Z | |
| date issued | 2018 | |
| identifier other | %28ASCE%29PS.1949-1204.0000306.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4248020 | |
| description abstract | By means of numerical modeling and experimental measurements, this work addresses the longstanding controversy of whether or not IR (ohmic) drops need to be considered in on-potential cathodic protection criteria. The results suggest that the IR drop is of little importance in many situations of practical relevance, and that its adverse influence on assessing the effectiveness of corrosion protection is generally overrated. This suggests that on-potentials are in principle suitable to be directly used for determining if a cathodic protection (CP) system offers adequate corrosion protection. This is considered a relevant finding because on-potentials are straightforward to measure, and their interpretation is free of many of the difficulties associated with instant-off potentials. Irrespective of the parameter used, however, a number of issues are discussed that need to be addressed in further work in order to provide the knowledge required to settle on threshold values. | |
| publisher | American Society of Civil Engineers | |
| type | Journal Paper | |
| journal volume | 9 | |
| journal issue | 1 | |
| journal title | Journal of Pipeline Systems Engineering and Practice | |
| identifier doi | 10.1061/(ASCE)PS.1949-1204.0000306 | |
| page | 4017035 | |
| tree | Journal of Pipeline Systems Engineering and Practice:;2018:;Volume ( 009 ):;issue: 001 | |
| contenttype | Fulltext |