X-ray Observations of Flow Patterns in a Mercury Boiler |
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Page 10
... appendix A. There was no way to determine if optimum wetting had been attained in the boiler , but there were indications that the conditioning procedure substantially improved the relative degree of wetting . The loop operated ...
... appendix A. There was no way to determine if optimum wetting had been attained in the boiler , but there were indications that the conditioning procedure substantially improved the relative degree of wetting . The loop operated ...
Page 19
... - Series of X - ray images of flow patterns through vapor throttle under four flow conditions . ( d ) Throttle under normal operating condi- tions ( no liquid detected ) . APPENDIX E mass velocity of gas or vapor phase ,. 19.
... - Series of X - ray images of flow patterns through vapor throttle under four flow conditions . ( d ) Throttle under normal operating condi- tions ( no liquid detected ) . APPENDIX E mass velocity of gas or vapor phase ,. 19.
Page 20
... appendix mentions flow phenomena seen in straight - tube boilers in which the problem of liquid carryover was demonstrated . Also described are the prototype heli- cally swaged boiler tubes that demonstrated the improvements obtainable ...
... appendix mentions flow phenomena seen in straight - tube boilers in which the problem of liquid carryover was demonstrated . Also described are the prototype heli- cally swaged boiler tubes that demonstrated the improvements obtainable ...
Page 21
... appendix C ) . It was concluded , after a number of prototype mercury boilers were operated , that some sort of swirling device was required throughout the boiler ( see appendix B ) . This requirement applies particularly if the boiler ...
... appendix C ) . It was concluded , after a number of prototype mercury boilers were operated , that some sort of swirling device was required throughout the boiler ( see appendix B ) . This requirement applies particularly if the boiler ...
Page 23
... ( appendix B ) showed that anomalous flow patterns are more likely to occur with two - phase mercury flow in straight - tube boilers . Corrosion and Instability Effects . The corrosion and mass transfer in the nucleation zone could ...
... ( appendix B ) showed that anomalous flow patterns are more likely to occur with two - phase mercury flow in straight - tube boilers . Corrosion and Instability Effects . The corrosion and mass transfer in the nucleation zone could ...
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/mē 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