X-ray Observations of Flow Patterns in a Mercury Boiler |
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Page 1
... carryover into the superheater . An attempt was made to explain the observed flow patterns in terms of patterns pre- dicted by previous adiabatic studies made with other fluids . There were close similar- ities between the observed and ...
... carryover into the superheater . An attempt was made to explain the observed flow patterns in terms of patterns pre- dicted by previous adiabatic studies made with other fluids . There were close similar- ities between the observed and ...
Page 2
... liquid entrainment ( carryover ) with mercury became ap- parent at once . Because of surface tension and dewetting effects , there is a tendency for liquid droplets and slugs of mercury to form and separate from the mainstream . These ...
... liquid entrainment ( carryover ) with mercury became ap- parent at once . Because of surface tension and dewetting effects , there is a tendency for liquid droplets and slugs of mercury to form and separate from the mainstream . These ...
Page 8
... fluids ( i.e. , liquid carryover and droplets ) could be observed flowing through the throttle . The throttle was thoroughly covered with a thick layer of quartz - fiber insulation and was heated only To pressure sensor Bleed port L ...
... fluids ( i.e. , liquid carryover and droplets ) could be observed flowing through the throttle . The throttle was thoroughly covered with a thick layer of quartz - fiber insulation and was heated only To pressure sensor Bleed port L ...
Page 20
... liquid mercury always appeared in the vapor throttle exit when low- quality vapor entered the throttle from the ... carryover was demonstrated . Also described are the prototype heli- cally swaged boiler tubes that demonstrated the ...
... liquid mercury always appeared in the vapor throttle exit when low- quality vapor entered the throttle from the ... carryover was demonstrated . Also described are the prototype heli- cally swaged boiler tubes that demonstrated the ...
Page 25
... liquid condensate column were nearly zero . Interactions occurring during metastable intervals were probably ... carryover was found in previous boilers examined by X - ray . In the boiler described herein , shallow helical grooves in the ...
... liquid condensate column were nearly zero . Interactions occurring during metastable intervals were probably ... carryover was found in previous boilers examined by X - ray . In the boiler described herein , shallow helical grooves in the ...
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