Hering, Wolfgang

Jäger, Wadim

Schaub, Thomas

English

KITopen

KIT – University of the State of Baden-Wuerttemberg and National Research Center of the Helmholtz AssociationInstitute for Neutron Physics and Reactor Technologywww.kit.eduWP 1: Fluctuations & VibrationsTask 1.1: Thermal FluctuationsTask 1.1.1: Reference DataTask 1.1.1.1: Flow SeparationExperimental InvestigationThomas Schaub, Wadim Jäger, Wolfgang HeringKarlsruhe Institute of Technology,Institute for Neutron Physics and Reactor TechnologySESAME 8th Progress MeetingTUD, Delft, The NetherlandsOctober 2-4, 2018Institute for Neutron Physics and Reactor Technology2 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingOutline• Recapitulation• Work done in the last 6 months• Outlook and further workInstitute for Neutron Physics and Reactor Technology3 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingRecapitualtion• Delay of KASOLA (not in operation)• Intrumentation and its calibration procedure in KASOLA veryunpractical (safety constrains, TÜV) Look for alternativesInstitute for Neutron Physics and Reactor Technology4 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingRecapitualtion• Delay of KASOLA (not in operation)• Intrumentation and its calibration procedure in KASOLA veryunpractical (safety constrains, TÜV) Look for alternatives• Integration of a BFS into the DITEFA (GaInSn) facility anddevelopment of a calibration procedure in a user friendlierenvironmentWind tunnel conceptInstitute for Neutron Physics and Reactor Technology5 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingRecapitualtion• Project stages – current status• Concept• Basic engineering• Detail engineering• Manufacturing: both facility & probe• Commissioning• Measurement campaign• Data analysis• Report of resultsInstitute for Neutron Physics and Reactor Technology6 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingRecapitualtionInstitute for Neutron Physics and Reactor Technology7 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingWork done in the last 6 month• Developments of the drawings• Identification of the manufacturing techniques• Development of statistical analysis procedures• Beginning of the manufacturing of the double-wall testsection + flow conditioning section• Development of a calibration strategy for the measurementprobe• Development of the measurement chain (measurementprobe + signal amplifier) for velocity- and temperaturemeasurmentsInstitute for Neutron Physics and Reactor Technology8 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingWork done in the last 6 month• Developments of the drawings (skip)• Identification of the manufacturing techniques (skip)• Development of statistical analysis procedures (skip)• Beginning of the manufacturing of the double-wall testsection + flow conditioning section• Development of a calibration strategy for the measurementprobe• Development of the measurement chain (measurementprobe + signal amplifier) for velocity- and temperaturemeasurmentsInstitute for Neutron Physics and Reactor Technology9 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingWork done in the last 6 month• Developments of the drawings (skip)• Identification of the manufacturing techniques (skip)• Development of statistical analysis procedures (skip)• Beginning of the manufacturing of the double-wall testsection + flow conditioning section• Development of a calibration strategy for the measurementprobe• Development of the measurement chain (measurementprobe + signal amplifier) for velocity- and temperaturemeasurmentsInstitute for Neutron Physics and Reactor Technology10 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingWork done in the last 6 monthBeginning of the manufacturing of the double-walled testsection + flow conditioning sectionInstitute for Neutron Physics and Reactor Technology11 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingWork done in the last 6 monthOuter metal wall                                                                                    Inner plastic wallInstitute for Neutron Physics and Reactor Technology12 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingWork done in the last 6 monthBeginning of the manufacturing of the double-walled testsection + flow conditioning sectionInlet section (rectangular)                            Outlet section (quadratic)   Institute for Neutron Physics and Reactor Technology13 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingWork done in the last 6 monthInstitute for Neutron Physics and Reactor Technology14 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingWork done in the last 6 month• Developments of the drawings (skip)• Identification of the manufacturing techniques (skip)• Development of statistical analysis procedures (skip)• Beginning of the manufacturing of the double-wall testsection + flow conditioning section• Development of a calibration strategy for the measurementprobe• Development of the measurement chain (measurementprobe + signal amplifier) for velocity- and temperaturemeasurmentsInstitute for Neutron Physics and Reactor Technology15 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingWork done in the last 6 monthDevelopment of a calibration strategy for the measurementprobe• Problemsi. The velocity signal has to be temperature-compensated: temperaturegradient between the electrodes/thermocouples and across the probeii. All available experience and correction procedures have been developedfor sodium and years ago... retired technicians an poor know-howdocumentation (super scientific one, though...)iii. The existing experience with these probes with GaInSn is restricted toisothermal casesiv. Material properties of GaInSn are rare and scatteredInstitute for Neutron Physics and Reactor Technology16 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingWork done in the last 6 monthDevelopment of a calibration strategy for the measurementprobe• Problemsi. The velocity signal has to be temperature-compensated: temperaturegradient between the electrodes/thermocouples and across the probeii. All available experience and correction procedures have been developedfor sodium and years ago... retired technicians an poor know-howdocumentation (super scientific one, though...)iii. The existing experience with these probes with GaInSn is restricted toisothermal casesiv. Material properties of GaInSn are rare and scattered• What to do? To adapt/modify the existing correction and calibrationprocedures...Institute for Neutron Physics and Reactor Technology17 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingWork done in the last 6 monthDevelopment of a calibration strategy for the measurementprobe• What to do? To adapt/modify the existing correction and calibrationprocedures ...i. to our experimental boundary conditions and needsii. making use of the advantages of the „user friendly“ environmenta. ↓ T + ↓ safetyb. material choicec. proper electrical insulation of certain probe´s componentsd. proper positioning of the electrodese. taking a look to the math and the underlying physics! Institute for Neutron Physics and Reactor Technology18 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingWork done in the last 6 month• Confection of the drawings + manufacturing techniques tobe used: skip• Development of statistical analysis procedures: skip• Beginning of the manufacturing of the double-walled testsection + flow conditioning section• Development of a calibration strategy for the measurementprobe• Development of the measurement chain (measurementprobe + signal amplifier) for velocity- and temperaturemeasurmentsInstitute for Neutron Physics and Reactor Technology19 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingWork done in the last 6 month• Developments of the drawings (skip)• Identification of the manufacturing techniques (skip)• Development of statistical analysis procedures (skip)• Beginning of the manufacturing of the double-wall testsection + flow conditioning section• Development of a calibration strategy for the measurementprobe• Development of the measurement chain (measurementprobe + signal amplifier) for velocity- and temperaturemeasurmentsInstitute for Neutron Physics and Reactor Technology20 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingWork done in the last 6 monthDevelopment of the measurement chain (measurement probe + signal amplifier) for velocity- and temperature measurments• Problemsi. The velocity signal is in the nanovolt rangeii. Extreme sensible signal to external noise: even the lab´s light plays a roleiii. Manufacturing of the probe has to be „doable“, reproducible (7 probes), fast and cheapiv. High temporal and spatial resolution requirements: turbulent heat fluxes!• What to do? Less science, more „art“Institute for Neutron Physics and Reactor Technology21 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingWork done in the last 6 monthDevelopment of the measurement chain (measurement probe + signal amplifier) for velocity- and temperature measurmentsi. Avoid reinventing the wheel: cooperating and refinding „lost“ know howii. Improving the wheel: Mr. Joachim Konrad (KIT-workshop) managed tomanufacture a 2 [mm] permanent magnet probe, beating the state of art• What to do? Less science, more „art“Institute for Neutron Physics and Reactor Technology22 02.10.2018 Wadim Jaeger SESAME 8th Progress MeetingOutlook and future work• Delay of ~ 6 months to the original DITEFA-schedulebecause of limted man-power at KIT workshops + modifiedcalibration/correction procedure needed (unexpected to thatextent)• Manufacturing is running according to schedule ~ 10.18• Commisioning ~ 11-12.18• Preliminary results ~ 12.18-01.19• Final results ~ 04-05.19

Status report for SESAME Progress Meeting

https://publikationen.bibliothek.kit.edu/1000087350/19301780

Status report for SESAME Progress Meeting

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