X-ray Observations of Flow Patterns in a Mercury Boiler |
From inside the book
Results 1-5 of 5
Page 21
... radial acceleration of the liquid phase are important in ensuring con- tinuance of the helical streamlet ( see appendix C ) . It was concluded , after a number of prototype mercury boilers were operated , that some sort of swirling ...
... radial acceleration of the liquid phase are important in ensuring con- tinuance of the helical streamlet ( see appendix C ) . It was concluded , after a number of prototype mercury boilers were operated , that some sort of swirling ...
Page 22
... radial acceleration induced by the swirling action . According to figure 16 , a stratified - plug - slug - annular transition is predicted for the insert zone wherein the vapor quality increased from nil to approximately 0.03 . Along ...
... radial acceleration induced by the swirling action . According to figure 16 , a stratified - plug - slug - annular transition is predicted for the insert zone wherein the vapor quality increased from nil to approximately 0.03 . Along ...
Page 23
... radial acceleration , liquid flowed against the inside surface of the boiler wall . Separation of liquid from the insert surface was enhanced by bubbles Pitted area Insert cylinder Flow Figure 17. Boiler insert zone showing corrosion ...
... radial acceleration , liquid flowed against the inside surface of the boiler wall . Separation of liquid from the insert surface was enhanced by bubbles Pitted area Insert cylinder Flow Figure 17. Boiler insert zone showing corrosion ...
Page 25
... radial acceleration is produced in the nucleation inception region . The X - ray observations showed that this helical stream let will persist as an essentially continuous ribbon of liquid if the boiler contains suitable ( e.g. ...
... radial acceleration is produced in the nucleation inception region . The X - ray observations showed that this helical stream let will persist as an essentially continuous ribbon of liquid if the boiler contains suitable ( e.g. ...
Page 31
... radial acceleration of the liquid phase were probably most important in ensuring the formation of the helical stream let . These and the conditions described subsequently were considered essential to the smooth helical flow pattern that ...
... radial acceleration of the liquid phase were probably most important in ensuring the formation of the helical stream let . These and the conditions described subsequently were considered essential to the smooth helical flow pattern that ...
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