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



Document title: Measurement of the electrostatic charge in airborne particles: II - particle charge distribution of different aerosols
Journal: Brazilian journal of chemical engineering
Database: PERIÓDICA
System number: 000309082
ISSN: 0104-6632
Authors: 1
2

Institutions: 1Universidade Federal de Sao Carlos, Departamento de Engenharia Quimica, Sao Carlos, Sao Paulo. Brasil
2Universidade de Sao Paulo, Departamento de Hidraulica e Saneamento, Sao Carlos, Sao Paulo. Brasil
Year:
Season: Mar
Volumen: 23
Number: 1
Pages: 125-133
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract 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
Disciplines: Química
Keyword: Ingeniería química,
Carga electrostática,
Partículas de aerosol,
Distribución de carga
Keyword: Chemistry,
Chemical engineering,
Electrostatic charge,
Aerosol particles,
Charge distribution
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