Title :
Pipe wall thickness inspection with current driven thermal method
Author_Institution :
Fac. of Sci. & Technol., Keio Univ. Hiyoshi, Yokohama, Japan
Abstract :
Electric potential difference(EPD) method is widely used for diagnosing and monitoring flow conduits. Theoretical analysis and the exact solution of the electrical potential field in pipe wall have been proposed, and 2D approximation is effective for small pipe wall thickness. This study proposes to use temperature distribution driven by Joule heat with the electric current other than electrical potential difference. Under thin wall approximation, 2D electric and thermal problems are analysed and exact solutions are given.
Keywords :
Joule-Thomson effect; electric current; electric potential; inspection; monitoring; multiphase flow; pipes; 2D approximation; Joule heat; current driven thermal method; electric current; electric potential difference; flow conduit diagnosing; flow conduit monitoring; pipe wall thickness inspection; temperature distribution; thin wall approximation; Approximation methods; Conductivity; Electric potential; Electrodes; Heating; Monitoring; Temperature distribution; electric potential difference; forward analysis; nondestructive test; pipe wall thinning; thermal image;
Conference_Titel :
SICE Annual Conference 2010, Proceedings of
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-7642-8
