X-ray Observations of Flow Patterns in a Mercury Boiler |
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... contact with the boiler wall . The observed flow pattern could be generally character- ized as stratified and in agreement with the pattern predicted by previous flow pattern mapping studies . X - ray observations were made under both ...
... contact with the boiler wall . The observed flow pattern could be generally character- ized as stratified and in agreement with the pattern predicted by previous flow pattern mapping studies . X - ray observations were made under both ...
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... Wall Contact and Phase Separation Flow Pattern Correlation . Corrosion and Instability Effects Instability Interactions • .. 20 20 21 23 24 CONCLUDING REMARKS . . . . . . . . . . . . . . . . . . . . . . . ........ 25 APPENDIXES A - LOOP ...
... Wall Contact and Phase Separation Flow Pattern Correlation . Corrosion and Instability Effects Instability Interactions • .. 20 20 21 23 24 CONCLUDING REMARKS . . . . . . . . . . . . . . . . . . . . . . . ........ 25 APPENDIXES A - LOOP ...
Page 1
... wall contact produced by the helical motion of the mercury . Because of the high surface tension of mercury , the stratified flow with good phase separation that was observed cannot be readily reproduced in straight - tube boilers ...
... wall contact produced by the helical motion of the mercury . Because of the high surface tension of mercury , the stratified flow with good phase separation that was observed cannot be readily reproduced in straight - tube boilers ...
Page 2
... wall contact for inducing wetting and , hence , improving stability and performance . Recently developed mercury boilers contain swirling devices that promote phase separation , increase boiling stability , and reduce the tendency for ...
... wall contact for inducing wetting and , hence , improving stability and performance . Recently developed mercury boilers contain swirling devices that promote phase separation , increase boiling stability , and reduce the tendency for ...
Page 15
... contact with the wall except for undetected suspension of droplets or mist flow . Helical streamlet . - The liquid mercury entering the boiler was constrained to flow Insert cylinder¬ Heat Flow Mercury streamlet CD - 10684-12 Figure 12 ...
... contact with the wall except for undetected suspension of droplets or mist flow . Helical streamlet . - The liquid mercury entering the boiler was constrained to flow Insert cylinder¬ Heat Flow Mercury streamlet CD - 10684-12 Figure 12 ...
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