Measurement of the electrostatic charge in airborne particles: II - particle charge distribution of different aerosols

AUTOR(ES)

Rodrigues, M. V., Marra Jr., W. D., Almeida, R. G., Coury, J. R.

FONTE

Brazilian Journal of Chemical Engineering

DATA DE PUBLICAÇÃO

2006-03

RESUMO

This work gives sequence to the study on the measurement of the electrostatic charges in aerosols. The particle charge classifier developed for this purpose and presented in the previous paper (Marra and Coury, 2000) has been used here to measure the particle charge distribution of a number of different aerosols. The charges acquired by the particles were naturally derived from the aerosol generation procedure itself. Two types of aerosol generators were used: the vibrating orifice generator and turntable Venturi plate generator. In the vibrating orifice generator, mono-dispersed particles were generated by a solution of water/ethanol/methylene blue, while in the rotating plate generator, six different materials were utilized. The results showed no clear dependence between electric charge and particle diameter for the mono-dispersed aerosol. However, for the poly-dispersed aerosols, a linear dependence between particle size and charge could be noticed.

Documentos Relacionados

• Measurement of the electrostatic charge in airborne particles: I - development of the equipment and preliminary results
• Dilute-phase pneumatic conveying of polystyrene particles: pressure drop curve and particle distribution over the pipe cross-section
• Airborne minerals and related aerosol particles: Effects on climate and the environment
• Effect of Electrostatic Charge on the Contamination of Plastic Food Containers by Airborne Bacterial Spores
• Electrostatic waves in a Maxwellian dusty plasma with variable charge on dust particles