X-ray Observations of Flow Patterns in a Mercury Boiler |
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Page
... wave flow Diffuse helical streamlet . . Liquid film terminal Superheater flow pattern Flow Patterns During Metastable Intervals 11 13 15 15 16 17 17 18 18 PREVIOUS FLOW PATTERN OBSERVATIONS ...... . . . . . . . . . . . . 20 DISCUSSION ...
... wave flow Diffuse helical streamlet . . Liquid film terminal Superheater flow pattern Flow Patterns During Metastable Intervals 11 13 15 15 16 17 17 18 18 PREVIOUS FLOW PATTERN OBSERVATIONS ...... . . . . . . . . . . . . 20 DISCUSSION ...
Page 14
... wave streamlet liquid flow por flow with film little or no evi- terminal dence of liquid drop- slugs lets and rivu- Helical stream let- Figure 11. Pressure and temperature profiles along loop and brief description of observed flow pat ...
... wave streamlet liquid flow por flow with film little or no evi- terminal dence of liquid drop- slugs lets and rivu- Helical stream let- Figure 11. Pressure and temperature profiles along loop and brief description of observed flow pat ...
Page 16
... wave flow . - As indicated in figure 11 , a second character- istic flow pattern appeared about 12 inches ( 31 cm ) downstream of the boiler inlet . This second pattern persisted to a point about 40 inches (. 16 Helical large-amplitude ...
... wave flow . - As indicated in figure 11 , a second character- istic flow pattern appeared about 12 inches ( 31 cm ) downstream of the boiler inlet . This second pattern persisted to a point about 40 inches (. 16 Helical large-amplitude ...
Page 17
... waves . This was the only regime where the continuity of the bulk stream appeared broken by a suc- cession of gaps ... wave train ' effect , which suggested a train of helically moving waves superimposed on the main pattern . The time ...
... waves . This was the only regime where the continuity of the bulk stream appeared broken by a suc- cession of gaps ... wave train ' effect , which suggested a train of helically moving waves superimposed on the main pattern . The time ...
Page 18
... - parent . The most distinctly observable overall effect in the boiler consisted of helical wave trains superimposed on the normal flow pattern . C - 70-175 18 Superheater flow pattern Flow Patterns During Metastable Intervals.
... - parent . The most distinctly observable overall effect in the boiler consisted of helical wave trains superimposed on the normal flow pattern . C - 70-175 18 Superheater flow pattern Flow Patterns During Metastable Intervals.
Common terms and phrases
adiabatic appendix axially Baker chart boiler exit boiler inlet boiler insert zone Boiler satura boiler surface boiler wall boiler-superheater boiling bubbles centrifugal forces cm/sec condensate column corrosion results corrosive attack downstream droplets figure 11 flow and pressure flow conditions FLOW PATTERN OBSERVATIONS flow pattern regime Flowmeter pressure drop gas flow heat flux heater element helical groove helical liquid helical stream helical streamlet Inlet pressure Insert cylinder kg/sec Lewis Research Center liquid carryover liquid film terminal liquid mercury liquid phase liquid streamlet mass flow rate mercury loop metastable intervals metastable oscillations motion picture N/m² abs NASA NASA TN nucleation zone observed flow patterns oscillations and excursions phase separation pounds per hour Preheater psia pump radial acceleration saturation pressure shown in figure Slug stratified flow superheater surface tension swirling device tangential velocity thermocouples two-phase flow two-phase inception vapor quality vapor throttle wall contact wave X-ray image system X-ray system