Test Loop Demonstration and Evaluation of Slurry Transfer Line Critical Velocity Measurement Instruments

Bontha, Jagannadha R.; Jenks, Jeromy Wj; Morgen, Gerald P.; Wilcox, Wayne; Adkins, Harold E.; Burns, Carolyn A.; Greenwood, Margaret S.; MacFarlan, Paul J.; Denslow, Kayte M.; Schonewill, Philip P.; Blanchard, Jeremy; Baer, Ellen B. K.

doi:10.2172/1008255

Cited by 9 publications

(28 citation statements)

References 19 publications

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“…The particle concentration threshold of detection for the PulseEcho system was not determined during Phase III testing in FY10. As discussed in Bontha et al (2010a), the minimum particle concentration was not met at high flow velocities for simulants with particle concentrations of 5 wt%. However, given the 30-µm cutoff particle size, the detectable concentration by the PulseEcho system was considerably lower.…”

Section: Limitations and Gaps Of Phase III Testsmentioning

confidence: 95%

“…This is possible for dilute slurries, especially at high flow velocities. As reported in Bontha et al 2010a, the PulseEcho system cannot distinguish between nonmodulated signals that result from lack of scattering and non-modulated signals that result from total attenuation due to a settled layer of solids. Logic and reasoning will have to be employed with the system.…”

Section: Pulseecho Algorithm Thresholdsmentioning

confidence: 97%

“…The simple detection of settled solids can be accomplished using this information alone; however, in combination with empirically derived a priori knowledge of speed-of-sound for the solids being monitored, the thickness of the settled solids can also be quantified in real time. Additional details on the PulseEcho algorithm can be found in Bontha et al (2010a), Section 3.2.…”

Section: Solids Mobility Detectionmentioning

confidence: 99%

“…The technical basis for PulseEcho, its configuration, and the configuration of the flow loop are described in detail in Bontha et al (2010a).…”

Section: Summary Of Phase III Testingmentioning

confidence: 99%

“…In FY2010, Phase III testing was done to establish the reliability of these instruments to detect critical velocities (Bontha et al 2010a and2010b). All testing was performed using an existing pipe loop that was originally designed and built to evaluate the pipeline plugging issue during slurry transfer operations at the WTP.…”

Section: Introductionmentioning

confidence: 99%

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Hanford Tank Farms Waste Certification Flow Loop Phase IV: PulseEcho Sensor Evaluation

Denslow¹,

Jenks²,

Bontha³

et al. 2011

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Executive SummaryPhase III of the Washington River Protection Solutions (WRPS) certification loop testing indicated that the PulseEcho system is an excellent candidate for detecting settled bed formation in the waste certification test loop during slurry transfer operations between Hanford tank farms and the Hanford Tank Waste Treatment and Immobilization Plant (WTP). However, the Phase III work also identified some specific areas where further development was necessary. Some of these areas included using full schedule 40 SS pipe wall thickness to mount the transducers, repeatability of the measurements, ability of PulseEcho system to detect small high density particles, lower limit of the detectable solids concentration, and effect of commonly present non-settling components in Hanford tank wastes that can influence the attenuation of the PulseEcho signal. The Phase IV of the testing presented in this report was designed to address these gaps. Testing was conducted in the Multiphase Transport Evaluation Loop (MTEL) available in the Process Development Laboratory East (PDLE) test facility of PNNL. The evaluation included the 5-MHz transducer that was previously used in Phase III and a 10-MHz transducer specifically chosen for detecting critical velocities and settled bed formation with small (>20 µm) particles. Testing was conducted with simulants specifically chosen to enable comparison with the Phase III data and also to test the limits of detection with both the 5-and 10-MHz transducers. The results obtained lead to several conclusions and recommendations:1. For >50µm particles, the performance of the 5-MHz transducer mounted at the half wall thickness was repeatable as compared with Phase III results. In addition, the performance of the 5-MHz transducers mounted at both the full and half wall thickness yielded the same results for critical velocity. Therefore, this transducer can be mounted on a near full Schedule 40 pipe wall thickness.2. The 5-MHz transducer was not capable of detecting critical velocities and settling of particles less than 30 µm. However, the particle concentration threshold for this transducer for 30 µm particles was not evaluated.3. The detection of critical velocity for particles in the WRPS desired range of 20 µm and greater requires a 10-MHz transducer.4. It is recommended that the absolute threshold mode of operation be applied with the PulseEcho system when using the 10-MHz transducer. This will allow for detection of small particle settled beds even in the highly attenuated conditions expected with many small particles distributed in the slurry.5. For highly attenuative carrier fluids, the 10-MHz transducer was capable of detecting settling of 15-30 µm sized stainless steel particles without false indications at a particle concentration of 2 wt% or higher in the detectable size range. NOTE -This minimum concentration is applicable to the small, high density stainless steel particles utilized during Phase IV testing. Additional testing is required to determine the minimum weight p...

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Section: Limitations and Gaps Of Phase III Testsmentioning

confidence: 95%

Section: Pulseecho Algorithm Thresholdsmentioning

confidence: 97%

Section: Solids Mobility Detectionmentioning

confidence: 99%

“…The technical basis for PulseEcho, its configuration, and the configuration of the flow loop are described in detail in Bontha et al (2010a).…”

Section: Summary Of Phase III Testingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Hanford Tank Farms Waste Certification Flow Loop Phase IV: PulseEcho Sensor Evaluation

Denslow¹,

Jenks²,

Bontha³

et al. 2011

Self Cite

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Implementing a compact data format for bluetooth and 3G communication to monitor remote pipelines

Ilgner

Pienaar

2016

2016 International Conference on Advances in Computing and Communication Engineering (ICACCE)

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New In-pile Instrumentation to Support Fuel Cycle Research and Development

Rempe¹,

MacLean²,

Schley³

et al. 2011

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SUMMARYNew and enhanced nuclear fuels are a key enabler for new and improved reactor technologies. For example, the goals of the next generation nuclear plant (NGNP) will not be met without irradiations successfully demonstrating the safety and reliability of new fuels. Likewise, fuel reliability has become paramount in ensuring the competitiveness of nuclear power plants. Recently, the Office of Nuclear Energy in the Department of Energy (DOE-NE) launched a new direction in fuel research and development that emphasizes an approach relying on first principle models to develop optimized fuel designs that offer significant improvements over current fuels. To facilitate this approach, high fidelity, real-time, data are essential for characterizing the performance of new fuels during irradiation testing. A three-year strategic research program has been initiated for developing the required test vehicles with sensors of unprecedented accuracy and resolution for obtaining the data needed to characterize three-dimensional changes in fuel microstructure during irradiation testing. When implemented, this strategy will yield test capsule designs that are instrumented with new sensor technologies for irradiations at facilities primarily relied upon by the Fuel Cycle Research and Development (FCR&D) program, the Advanced Test Reactor (ATR) and the High Flux Isotope Reactor (HFIR). Prior laboratory testing, and as needed, irradiation testing of sensors in these capsules will have been completed to give sufficient confidence that the irradiation tests will yield the required data.From the onset of this instrumentation development effort, it was recognized that obtaining these sensors must draw upon the expertise of a wide-range of organizations not currently supporting nuclear fuels research. Hence, a draft version of this document was developed to provide necessary background information related to fuel irradiation testing, desired parameters for detection, and an overview of currently available in-pile instrumentation. Then, a workshop was held in which U.S. and foreign experts from fuels, irradiation, and instrumentation fields participated. Prior to this workshop, copies of a draft version of this document were distributed to participants to stimulate expert interactions at this meeting. During the workshop, candidate sensor technologies identified in this document were discussed and ranked by the experts using agreed upon criteria. The final version of this document describes the consensus reached during the workshop with respect to recommendations for the path forward for accomplishing the goals of this research program.Based on the activities completed to develop this strategic plan, it is recommended that the FCR&D instrumentation development program be initiated as a three year program that includes the following three tasks:• Ultrasonics-Based Evaluations -In this task, laboratory evaluations and necessary irradiations will be completed to demonstrate the viability of this technology for in-pile applications. Specif...

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Test Loop Demonstration and Evaluation of Slurry Transfer Line Critical Velocity Measurement Instruments

Cited by 9 publications

References 19 publications

Hanford Tank Farms Waste Certification Flow Loop Phase IV: PulseEcho Sensor Evaluation

Hanford Tank Farms Waste Certification Flow Loop Phase IV: PulseEcho Sensor Evaluation

Implementing a compact data format for bluetooth and 3G communication to monitor remote pipelines

New In-pile Instrumentation to Support Fuel Cycle Research and Development

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