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Τεχνολογίες μη καταστροφικών ελέγχων - εφαρμογές της μεθόδου της ακουστικής εκπομπής σε δίκτυα αγωγών υγρών καυσίμων

Chamalidou Marianna

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Summary

Nowadays, it has been found that Non-Destructive Testing Technologies (NTD) applied for the qualitative assessment of various materials and structures are an indisputable part of the production process as it controls the object under consideration without minimizing its condition. Besides, time and money are saved due to the timely resolution of potential problems as well as the automated procedures applied. Quality control with the use of NTD technologies has a wide field of application and includes a variety of techniques, starting with techniques such as Ultrasound, Optical Control, Radiography, Macroscopic Testing and more and extends to more complex and specialized modern techniques such as Phased Array (PA), Time of Flight Diffraction (TOFD) and Acoustic Emission (AE). The subject of this dissertation is the applications of NTD technologies to networks and pipelines. This field of application has an increased risk factor due to the flammable nature of the material contained, as well as due to the significant environmental burden in the event of leakage. The choice of the NTD technologies in this case is ideal because the system in question requires continuous and safe quality control. An extensive analysis of the Acoustic Emissions Method AE will be carried out at a theoretical level as well as a study for application in a liquid fuel transportation and storage network. Complete analysis and processing of parameters – indicators and sensors – will determine the quality control, design and implementation requirements, use of necessary software, determination and calculation of basic measurement characteristics etc. Finally, after the end of the implementation study, conclusions and observations will be given.

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