Study of primary atomisation phenomenon of modified starch solution stream at elevated temperature
The objective of the work was to study the primary atomisation phenomenon of the starch-urea-borate complex solutions at elevated temperature. Firstly, the dynamic viscosity and surface tension of the solutions were studied as a function of temperature and applied shear rate. Secondly, using a high-...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Published: |
Maney Publishing
2014
|
| Online Access: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84918821310&doi=10.1179%2f1432891714Z.000000000944&partnerID=40&md5=c45f2ea7a87586eeea154be5e0d011af http://eprints.utp.edu.my/31046/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | The objective of the work was to study the primary atomisation phenomenon of the starch-urea-borate complex solutions at elevated temperature. Firstly, the dynamic viscosity and surface tension of the solutions were studied as a function of temperature and applied shear rate. Secondly, using a high-speed camera (Phantom v91) and phase Doppler anemometry, the jet breakup dynamics, Sauter mean diameter and droplet velocity vectors were studied. A shearthinning behaviour followed by shear thickening was observed for all solution compositions. The surface tension was decreased concomitantly with an increase in solution temperature. However, an increasing trend in a spray cone angle was noticed when solution temperature was elevated up to 80°C. The phase Doppler anemometry studies revealed that at 80°C solution temperature and 15 bar load pressure, the spray droplets start getting uniform sizes and move in random directions at 120 cm downstream of the nozzle exit. © W. S. Maney &Son Ltd 2014. |
|---|