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Review of Progress in Quantitative Nondestructive Evaluation

Electrical and Computer Engineering

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Full-Text Articles in Nuclear Engineering

Capacitive Sensing For Nuclear Power Plant Cable Insulation Assessment, Nicola Bowler, Shuaishuai Liu, Michael I. Byler, Leonard S. Fifield Jan 2016

Capacitive Sensing For Nuclear Power Plant Cable Insulation Assessment, Nicola Bowler, Shuaishuai Liu, Michael I. Byler, Leonard S. Fifield

Review of Progress in Quantitative Nondestructive Evaluation

The ability to evaluate, nondestructively, the material state of insulation polymers widely employed in aged control and power cables has been identified as important In the process of routine safety inspection and safety inspection for license renewal of aging Light Water Reactor Nuclear Power Plants (NPPs) in the United States [1]. The present industry standard is that the insulation polymer breaking strain (or elongation-at-break, EAB) should be no less than 50% of that value measured on the pristine material, for the aged insulation polymer to be fit for service. Measurement of EAB is destructive, the method requires a relatively large ...


Testing Piezoelectric Sensors In A Nuclear Reactor Environment, Brian Reinhardt, Andy Suprock, Bernhard Tittmann Jan 2016

Testing Piezoelectric Sensors In A Nuclear Reactor Environment, Brian Reinhardt, Andy Suprock, Bernhard Tittmann

Review of Progress in Quantitative Nondestructive Evaluation

Several Department of Energy Office of Nuclear Energy (DOE-NE) programs, such as the Fuel Cycle Research and Development (FCRD), Advanced Reactor Concepts (ARC), Light Water Reactor Sustainability, and Next Generation Nuclear Power Plants (NGNP), are investigating new fuels, materials, and inspection paradigms for advanced and existing reactors. A key objective of such programs is to understand the performance of these fuels and materials during irradiation. In DOE-NE’s FCRD program, ultrasonic based technology was identified as a key approach that should be pursued to obtain the high-fidelity, high-accuracy data required to characterize the behavior and performance of new candidate fuels ...


Results Of Using Frequency Banded Saft For Examining Three Types Of Defects, Dwight Clayton, Alan Barker, Hector Santos-Villalobos Jan 2016

Results Of Using Frequency Banded Saft For Examining Three Types Of Defects, Dwight Clayton, Alan Barker, Hector Santos-Villalobos

Review of Progress in Quantitative Nondestructive Evaluation

A multitude of concrete-based structures are typically part of a light water reactor (LWR) plant to provide the foundation, support, shielding, and containment functions. Concrete has been used in the construction of nuclear power plants (NPPs) because of three primary properties; its inexpensiveness, structural strength, and ability to shield radiation. Examples of concrete structures important to the safety of LWR plants include the containment building, spent fuel pool, and cooling towers. This use has made concrete’s long-term performance crucial for the safe operation of commercial NPPs. Extending reactor life to 60 years and beyond will likely increase susceptibility and ...


Feasibility Tests Of Ranging Inspection Of Sodium-Cooled Fast Reactor Using A Plate-Type Ultrasonic Waveguide Sensor, Young-Sang Joo, Hoe-Woong Kim, Sang-Jin Park, Sung-Kyun Kim, Jong-Bum Kim, Duck-Gun Park Jan 2016

Feasibility Tests Of Ranging Inspection Of Sodium-Cooled Fast Reactor Using A Plate-Type Ultrasonic Waveguide Sensor, Young-Sang Joo, Hoe-Woong Kim, Sang-Jin Park, Sung-Kyun Kim, Jong-Bum Kim, Duck-Gun Park

Review of Progress in Quantitative Nondestructive Evaluation

In the sodium-cooled fast reactor (SFR), conventional optical visual inspections cannot be applied due to the opacity of sodium coolant. An inspection technique based on the ultrasound should be employed because the opacity of sodium prevents any conventional techniques using optical devices from being applied for under-sodium viewing of SFR [1]. Recently, the 10 m long plate-type ultrasonic waveguide sensor has been developed for the under-sodium viewing of SFR [2]. In the plate-type ultrasonic waveguide sensor, an ultrasonic transducer installs above reactor head which is in a relatively cold condition, A0 mode Lamb wave is propagated in a plate waveguide ...


An Efficient Technique For Storing Eddy Current Signals, S. S. Udpa Jan 1987

An Efficient Technique For Storing Eddy Current Signals, S. S. Udpa

Review of Progress in Quantitative Nondestructive Evaluation

Preventive maintenance schemes often involve periodic inspection of plant and equipment in industry. Evaluation of the integrity of the plant at regular intervals provides data not only for the detection of defects in their incipient stages but also for monitoring the evolution in the growth of defects that were considered benign in previous inspections. Evolution in the nature of defects is tracked by comparing the signals obtained with test data obtained and recorded from previous tests. Consequently the procedure entails storage of a large amount of data during each inspection. As an example, the Nuclear Regulatory Commission mandates periodic inspection ...