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09070 Cathodic Protection Potential Distribution Simulation for Pipeline Buried in Discontinuous Permafrost

Picture for 09070 Cathodic Protection Potential Distribution Simulation for Pipeline Buried in Discontinuous Per
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Product Number: 51300-09070-SG
ISBN: 09070 2009 CP
Author: Minxu Lu, Yanxia Du and Lei Zhang
Publication Date: 2009
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Increasing numbers of pipelines constructed in the western and northern areas of China are buried in discontinuous permafrost, and certain challenges need to be met in the design of cathodic protection (CP) system. In this work numerical simulation is conducted to predict the cathodic protection potential distribution of pipeline buried in discontinuous permafrost. The simulations are in good agreement with experiments, showing that significant differences exist under various seasons and anode beds, such as zinc ribbon anodes, deep ground anodes and shallow horizontal anodes. The results can provide valuable references for engineering design and operation of CP systems in discontinuous permafrost areas.

Key words: discontinuous permafrost, cathodic protection, numerical simulation, potential distribution, anode groundbed
Increasing numbers of pipelines constructed in the western and northern areas of China are buried in discontinuous permafrost, and certain challenges need to be met in the design of cathodic protection (CP) system. In this work numerical simulation is conducted to predict the cathodic protection potential distribution of pipeline buried in discontinuous permafrost. The simulations are in good agreement with experiments, showing that significant differences exist under various seasons and anode beds, such as zinc ribbon anodes, deep ground anodes and shallow horizontal anodes. The results can provide valuable references for engineering design and operation of CP systems in discontinuous permafrost areas.

Key words: discontinuous permafrost, cathodic protection, numerical simulation, potential distribution, anode groundbed
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