Corrosion Detection in Pipelines Based on Measurement of Natural Frequencies

Inhibition of Pipelines Corrosion Using Natural Extracts

The present work is aimed at examining carbon steel oil pipelines corrosion using three natural extracts (Eruca Sativa, Rosell and Mango peels) that are used as inhibitors of different concentrations ranging from 0.05-0.1wt. %. Two sulphur compounds are used as corrosion mediums. Weight loss method was used for measuring the corrosion rate of the carbon steel specimens immersed in technical whi...

a study on corrosion reasons of heat exchanger in ammonia unit

چکیده ندارد.

Technology Status Report on Natural Gas Leak Detection in Pipelines

However, any opinions, findings, conclusions, or recommendations expressed herein are those of the author and do not necessarily reflect the views of the DOE". Natural gas consumption in the US is expected to increase 50% within the next 20 years (Anderson and Driscoll, 2000). At the same time, the gas delivery infrastructure is rapidly aging. The Department of Energy has stated that ensuring n...

EMAT-Based Inspection of Natural Gas Pipelines for Stress Corrosion Cracks

Structural Damage Identification of Plate Structures based on Frequency Response Function and Natural Frequencies

In this paper, a structural damage identification method (SDIM) is developed for plate-like structures. This method is derived using dynamic equation of undamaged/damaged plate, in which local change in flexural rigidity is characterized utilizing a damage distribution function. The SDIM requires to modal data in the intact state and frequency response of damage state where most of vibration ba...