Atomization and Sprays Journal of the International Institutes for Liquid Atomization and Spray Systems

ISSN for PRINT: 1045-5110

For Online Access

Best Paper Award Selection - Editorial Board Site

2006, Volume16

Issue 2

115 pages

DOI: 10.1615/AtomizSpr.v16.i2

Issue price - $80.00

Felix Barreras
LITEC/CSIC, Zaragoza; and Centro Politecnico Superior de Ingenieros, Area de Mecanica de Fluidos, Universidad de Zaragoza, Zaragoza, Spain

Antonio Lozano
LITEC/CSIC. Maria de Luna 10, 50018 Zaragoza, Spain

Jorge Barroso
LITEC/CSIC. Maria de Luna 10, 50018 Zaragoza, Spain

Eduardo Lincheta
CECYEN, Universidad de Matanzas, Autopista a Varadero, km 3½, 44740 Matanzas, Cuba

The aim of this work is focused on the characterization of the behavior of large-capacity multihole industrial twin-fluid atomizers. Sauter mean diameter (SMD), discharge coefficient, and air-to-liquid mass flow rate ratio are the parameters that have been selected for the experimental study. Two kinds of nozzles have been tested: a commercial "Y" type and a new-concept twin-fluid nozzle with an internal swirl chamber. This new-concept nozzle, which is specifically designed to atomize crude petroleum in power plants, is made with two different pieces, which eases cleaning and maintenance tasks. The best performance has been obtained for the new-concept nozzle without Y ports in the internal part, yielding smaller droplets with a lower air mass flow rate. A nondimensional relationship between the SMD-to-air core diameter at the exit holes (D_ao) versus the air Reynolds number defined with D_ao has been found. This nondimensional relation reproduces very well the experimental measurements for the whole range of atomizing conditions, which includes the actual power plant operating conditions.

DOI: 10.1615/AtomizSpr.v16.i2.10 Download article, 127-146 pages

Article price - $35.00

  Next article >>