How Is Non-Destructive Testing Used In Power Stations?

It’s common knowledge within the engineering sector that non-destructive testing can be used to test the structural integrity of concrete structures. Defects or structural imperfections can easily be identified using NDT equipment to ensure structural stability and identify where, if any, remediations need to be made. Non-destructive testing techniques are often used in power stations to make sure downtime or loss of power generation does not happen. Indeed, NDT is used to ensure compliance with safety and maintenance schedules and as evidence to governing regulatory bodies that power station administrators are obeying the law. 

 In addition to concrete structures, other components of a power station must also undergo regular non-destructive testing so that their working capacity can be verified. Piping systems, boilers and heat exchangers must be tested regularly for flaws which could cause expensive damage and harm to human life. Even simple structural parts like welds, nozzles and valves must be evaluated frequently for defects. Non-destructive testing must be carried out both during construction, as part of regular maintenance and when components are nearing the end of their life cycle. 

What NDT Techniques Are Used In Power Station Evaluation? 

Ultrasonic Testing 

Ultrasonic testing is the most-appropriate method of identifying structural flaws within concrete structures located in power stations. High-frequency sound waves are used to identify deformities or irregularities in the surface of concrete material. 

Magnetic Particle Testing 

Magnetic particle testing is the most-appropriate way to observe irregularities in the surface and subsurface of ferromagnetic objects. A magnetic field identifies imperfections in areas where iron particles have been sprinkled onto working components. This technique is applied when cobalt, iron, nickel and some of their alloys are used. 

Liquid Penetrant Testing 

Liquid penetrant testing is a non-destructive testing method which is certainly utilized to check for any deficiencies present in the materials, such as cracks. By spreading a thin liquid dye onto the surface of the material, then followed by the application of a developer. The dye and developer bring out the surface deficiencies, together. It is a widespread method utilized to examine any kind of defects in welds, pipes, bars, plastics, ceramics, metals and many other substances. 

Radiographic Testing 

Radiographic NDT methods work by projecting X-Rays or Gamma rays through a material onto a receiver. The receiver identifies where the radiation is absorbed or passes through a material and is commonly used to identify where welds between metal components are faulty. 

Contact NDT Australia Today To Buy Testing Equipment 

If you are looking for non-destructive testing equipment to evaluate the structural and working integrity of your power station, check out NDT Australia’s online store. We supply a range of NDT technology, including ultrasonic thickness testing , magnetic particle testing, liquid penetrant testing and radiographic testing equipment across Australia. We are open for business Monday to Friday, 7:30am to 4:00pm. Contact our friendly sales team on (02) 9524 0558 to ask any questions or to place an order for any of the products listed on our online store.