X-ray Observations of Flow Patterns in a Mercury Boiler |
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Page 10
... transfer . Measures were therefore taken to induce wetting by the procedure described in appendix A. There was no ... Mass flow rate 10 OPERATING CONDITIONS.
... transfer . Measures were therefore taken to induce wetting by the procedure described in appendix A. There was no ... Mass flow rate 10 OPERATING CONDITIONS.
Page 13
... mass transfer increased . FLOW PATTERN OBSERVATIONS The normal operating conditions for the loop are given in table I and are illustrated in figure 11. Also included in this figure are abbreviated descriptions of the two - phase flow ...
... mass transfer increased . FLOW PATTERN OBSERVATIONS The normal operating conditions for the loop are given in table I and are illustrated in figure 11. Also included in this figure are abbreviated descriptions of the two - phase flow ...
Page 18
... Mass transfer evidence ( i.e. , deposits ) indicated that a thin liquid film extended halfway into the superheater . Flow Patterns During Metastable Intervals Variations were observed in the flow pattern associated with off - design ...
... Mass transfer evidence ( i.e. , deposits ) indicated that a thin liquid film extended halfway into the superheater . Flow Patterns During Metastable Intervals Variations were observed in the flow pattern associated with off - design ...
Page 23
... mass transfer in the nucleation zone could account for the in- crease in metastable fluctuations as the duration of the loop operation increased beyond several hundred hours . Evidence that nucleation occurred in the insert zone is seen ...
... mass transfer in the nucleation zone could account for the in- crease in metastable fluctuations as the duration of the loop operation increased beyond several hundred hours . Evidence that nucleation occurred in the insert zone is seen ...
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