| Journal: | Journal of the Brazilian Society of Mechanical Sciences |
| Database: | PERIÓDICA |
| System number: | 000311991 |
| ISSN: | 0100-7386 |
| Authors: | Bordalo, Sergio Nascimento1 Saboya, Francisco Eduardo Mourao2 |
| Institutions: | 1Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica, Campinas, Sao Paulo. Brasil 2Universidade Federal Fluminense, Departamento de Engenharia Mecanica, Niteroi, Rio de Janeiro. Brasil |
| Year: | 1999 |
| Season: | Dic |
| Volumen: | 21 |
| Number: | 4 |
| Pages: | 600-610 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | The objective of the present work is the experimental determination of pressure drop coefficients (loss coefficients) for elliptic and circular sections in one, two and three-row arrangements of plate fin and tube heat exchangers. The experiments permitted to correlate the dimensionless loss coefficient with the flow Reynolds number in the rectangular channel formed by the plate fins. The experimental technique consisted of the measurement of the longitudinal pressure distribution along the flow channel, for several values of air mass flow rate. The total number of data runs, each one characterized by the flow Reynolds number, was 216. The present geometry is used in compact heat exchangers for air conditioning systems, heaters, radiators, and others. Also, it is verified the influence of the utilization of elliptic tubes, instead of circular ones, in the pressure drop. The measurements were performed for Reynolds numbers ranging from 200 to 1900 |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería mecánica, Caída de presión, Tuberías, Número de Reynolds, Indicadores |
| Keyword: | Engineering, Mechanical engineering, Pressure drop, Pipes, Reynolds number, Indicators |
| Full text: | Texto completo (Ver HTML) |
