Thesis
DESIGN OF AIR-SLOT NDE SENSOR COUPLING MECHANISM FOR HANFORD UNDER-TANK
Washington State University
Master of Science (MS), Washington State University
01/2021
DOI:
https://doi.org/10.7273/000003123
Handle:
https://hdl.handle.net/2376/124695
Abstract
In a combined effort with Pacific Northwest National Laboratory (PNNL), Washington River Protection Solutions (WRPS), Pennsylvania State University (PSU), Guided Wave, at the time Inuktun (now Eddyfi Technologies), and Washington State University Tri-Cities (WSUTC), a system has been conceived and designed to traverse in between the two shells of million gallon radioactive and hazardous waste tanks located on the Hanford Reservation just north of Richland, WA. The goal is to evaluate and characterize the health of these structures by accessing the portion of the tank in contact with the radioactive/hazardous material through small air channels in refractory media designed for ventilating and cooling the tanks. This study focuses on developing, analyzing, and testing two iterations of the scissor-style lifting mechanism. The first of these iterations required a lifting load capacity of fifty pounds-force, and the second required a load capacity of one-hundred-fifty pounds-force. This unique machine capable of applying this force is necessary to couple an Electro-Magnetic Acoustic Transducer (EMAT) against the inner tank’s outer surface as the sensor uses a contained coupling liquid needed to meet the specification for interacting with the tanks. Herein the analysis will show that the structural components of the device will meet the design goals to reach the specified load. The results of this study validate that the designs of these two compact machines, each measuring approximately 1 inch wide by 3.5 inches long by 0.8 inches in height, can produce lifting forces exceeding 50 pounds and 150 pounds, respectively.
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Details
- Title
- DESIGN OF AIR-SLOT NDE SENSOR COUPLING MECHANISM FOR HANFORD UNDER-TANK
- Creators
- Eric Preston Wayne Loeffler
- Contributors
- Changki Mo (Advisor)Joseph Iannelli (Committee Member)John Miller (Committee Member)
- Awarding Institution
- Washington State University
- Academic Unit
- Engineering and Applied Sciences (TRIC), School of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University
- Number of pages
- 185
- Identifiers
- 99900651899201842
- Language
- English
- Resource Type
- Thesis