X-ray Observations of Flow Patterns in a Mercury Boiler |
From inside the book
Results 1-5 of 6
Page 1
... metastable intervals when there were flow and pressure oscillations and excursions . In these instances , the X - ray aided in identifying phenomena that appeared to trigger and sustain metastable conditions in the boiler . Using flow ...
... metastable intervals when there were flow and pressure oscillations and excursions . In these instances , the X - ray aided in identifying phenomena that appeared to trigger and sustain metastable conditions in the boiler . Using flow ...
Page 11
... in the loop became metastable . During the metastable intervals , there were cyclic flow , pressure , and temperature oscillations and excursions . Typical Time , min Time , min 180 165 150 135 11 METASTABLE FLUCTUATIONS.
... in the loop became metastable . During the metastable intervals , there were cyclic flow , pressure , and temperature oscillations and excursions . Typical Time , min Time , min 180 165 150 135 11 METASTABLE FLUCTUATIONS.
Page 13
... oscillations that oc- curred during some of the metastable intervals . During these intervals , the pump- developed pressure and pump - outlet pressure were constant and showed no tendency to oscillate or drift . The type of metastable ...
... oscillations that oc- curred during some of the metastable intervals . During these intervals , the pump- developed pressure and pump - outlet pressure were constant and showed no tendency to oscillate or drift . The type of metastable ...
Page 18
... Metastable Intervals Variations were observed in the flow pattern associated with off - design intervals in the loop . These metastable fluctuations became more frequent after several hundred hours of operation with the attendant ...
... Metastable Intervals Variations were observed in the flow pattern associated with off - design intervals in the loop . These metastable fluctuations became more frequent after several hundred hours of operation with the attendant ...
Page 20
... metastable oscillations such as those represented in fig- ure 10 , no visual evidence of liquid choking or clogging of the valve was observed . This is considered significant in lieu of conclusions mentioned hereinafter concerning insta ...
... metastable oscillations such as those represented in fig- ure 10 , no visual evidence of liquid choking or clogging of the valve was observed . This is considered significant in lieu of conclusions mentioned hereinafter concerning insta ...
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