TY - GEN
T1 - Analysis of carrier gas flow rate effect on hydroxyapatite particle formation in ultrasonic spray pyrolysis
AU - Widiyastuti, W.
AU - Setiawan, Adhi
AU - Nurtono, Tantular
AU - Winardi, Sugeng
N1 - Publisher Copyright:
© 2016 AIP Publishing LLC.
PY - 2016/2/8
Y1 - 2016/2/8
N2 - Ultrasonic spray pyrolysis has been well-known process for producing fine particles from single and multicomponent materials. Here, the effect of carrier gas flow rate in ultrasonic spray pyrolysis process was studied in the particle formation of hydroxyapatite using solution precursor of Ca(CH3COO)2 and (NH4)2HPO4 with Ca/P ratio of 1.67. The experimental analysis was accompanied with computational fluid dynamics (CFD) simulation for comparison. In the simulation, the evaporation of the solvent in the droplets, a second evaporation due to crust formation, the decomposition reaction of the precursor involving the transfer of heat and mass transfer from droplet to surrounding were considered. By maintaining temperature at 900 °C, the residence time increased with decreasing the carrier gas flow rate led to the increasing the evaporation rate and the reacted fraction of the precursor. The predicted and experimental results of average particles size were agreed well with discrepancy 6.3%.
AB - Ultrasonic spray pyrolysis has been well-known process for producing fine particles from single and multicomponent materials. Here, the effect of carrier gas flow rate in ultrasonic spray pyrolysis process was studied in the particle formation of hydroxyapatite using solution precursor of Ca(CH3COO)2 and (NH4)2HPO4 with Ca/P ratio of 1.67. The experimental analysis was accompanied with computational fluid dynamics (CFD) simulation for comparison. In the simulation, the evaporation of the solvent in the droplets, a second evaporation due to crust formation, the decomposition reaction of the precursor involving the transfer of heat and mass transfer from droplet to surrounding were considered. By maintaining temperature at 900 °C, the residence time increased with decreasing the carrier gas flow rate led to the increasing the evaporation rate and the reacted fraction of the precursor. The predicted and experimental results of average particles size were agreed well with discrepancy 6.3%.
UR - http://www.scopus.com/inward/record.url?scp=84984571812&partnerID=8YFLogxK
U2 - 10.1063/1.4941465
DO - 10.1063/1.4941465
M3 - Conference contribution
AN - SCOPUS:84984571812
T3 - AIP Conference Proceedings
BT - 6th Nanoscience and Nanotechnology Symposium, NNS 2015
A2 - Nur, Adrian
A2 - Rahmawati, Fitria
A2 - Purwanto, Agus
A2 - Dyartanti, Endah Retno
A2 - Jumari, Arif
PB - American Institute of Physics Inc.
T2 - 6th Nanoscience and Nanotechnology Symposium, NNS 2015
Y2 - 4 November 2015 through 5 November 2015
ER -