| Texto completo | |
| Autor(es): |
Marcio Ricardo Salla
[1]
;
Leonardo Vieira Soares
[2]
;
José Eduardo Alamy Filho
[3]
;
Luiz Antonio Daniel
[4]
;
Harry Edmar Schulz
[5]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Universidade Federal de Uberlândia. Faculdade de Engenharia Civil - Brasil
[2] Universidade de São Paulo. Faculdade de Engenharia de São Carlos - Brasil
[3] Universidade Federal de Uberlândia. Faculdade de Engenharia Civil - Brasil
[4] Universidade de São Paulo. Faculdade de Engenharia de São Carlos - Brasil
[5] Universidade de São Paulo. Faculdade de Engenharia de São Carlos - Brasil
Número total de Afiliações: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Ingeniare. Rev. chil. ing.; v. 16, n. 3, p. 450-460, 2008-12-00. |
| Resumo | |
The size of the cross section of an ozonization column influences its hydrodynamic characteristics, which, on its turn, has effects on phenomena that depend on the relative movement between gas bubbles and liquid. To observe the influence of the cross sectional area on gas concentration and bubbles velocity, two columns were used. The first column had a square cross section with side of 0.19m and the second had a circular cross section with diameter of 0.10 m. The ascendant velocities of the bubbles and their concentration were measured in both columns and compared. The transversal spread of the plumes of bubbles was also quantified. The results show that the increase of the cross section of the column, in the proportion studied here, does not result in a similar increase of the cross section of the ascending plume of bubbles. Furthermore, the results of average velocities and concentrations obtained for the smallest cross section resulted independent of the liquid level in the column, while the results for the largest cross section showed to be dependent of this level. The ratio between the cross sectional areas of the larger and the smaller plumes of bubbles decreases for higher distances to the bottom of the columns. (AU) | |
| Processo FAPESP: | 01/13586-6 - Sistemas de ozonização com difusores considerando as reações intermediárias e a hidrodinâmica |
| Beneficiário: | Marcio Ricardo Salla |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |