Vol. 10 Issue 1
Year:2014
Issue:Aug-Oct
Title:Investigation of Average Life of Underground Storage Tanks
Author Name:Rachna Umbarkar and Kailas L. Wasewar
Synopsis:
Corrosion in underground storage tanks has become an important issue which needs to be figured out before any economical loss occurs. The basic aim of the present work is to study the average life of underground storage tanks using suitable numerical model. Mean Time to Corrosion Failure (MTCF) model is the proven model for predicting the average life of the underground storage tanks based on soil and tank characteristics. In this present paper, the average life of underground storage tanks using MTCF model based on the available experimental data of corrosion rate, resistivity and other characteristics of tank and soil has been determined. The estimated maximum MTCF is 27.3 years and minimum is 17.4 years. Hence, in worst condition, the life of considered tank would be around 17.4 years and in best condition, it would be upto 27.3 years. The predicted results are in well agreement with the literature data as the tank failure from external corrosion ranged from 5 to 35 years. The MTCF can be used as the best suitable model to determine the average life of the underground storage tanks.
Year:2014
Issue:Aug-Oct
Title:Investigation of Average Life of Underground Storage Tanks
Author Name:Rachna Umbarkar and Kailas L. Wasewar
Synopsis:
Corrosion in underground storage tanks has become an important issue which needs to be figured out before any economical loss occurs. The basic aim of the present work is to study the average life of underground storage tanks using suitable numerical model. Mean Time to Corrosion Failure (MTCF) model is the proven model for predicting the average life of the underground storage tanks based on soil and tank characteristics. In this present paper, the average life of underground storage tanks using MTCF model based on the available experimental data of corrosion rate, resistivity and other characteristics of tank and soil has been determined. The estimated maximum MTCF is 27.3 years and minimum is 17.4 years. Hence, in worst condition, the life of considered tank would be around 17.4 years and in best condition, it would be upto 27.3 years. The predicted results are in well agreement with the literature data as the tank failure from external corrosion ranged from 5 to 35 years. The MTCF can be used as the best suitable model to determine the average life of the underground storage tanks.
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