This paper studies the phenomenon of
gaseous cavitation from a theoretical and practical perspective. A simulated distribution system was
constructed to track gaseous cavitation using four independent measurements including visual observation of
bubbles, an inline turbidimeter, an ultrasonic flow meter, and an inline total dissolved gas probe. All four
measurements confirmed that gaseous cavitation was occurring within the experimental distribution system, even
at relatively high system pressures. Gaseous cavitation increased at higher initial dissolved gas contents and was
affected by temperature. Certain changes in pH, conductivity, and surfactant addition also tended to increase the
likelihood of cavitation. For example, compared to the control at 30 psig system pressure, the turbidity increased
295% at pH 9.9. These bubbles in turn reduced the pump's operating efficiency causing the system velocity to be
17% lower. Cavitation clearly occurred in these experiments even though calculations suggested that it was
unlikely. Includes 12 references, table, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 480 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 20 |
| Published : | 06/17/2005 |
