Studies on a simplex pressure-swirl atomizers with a different spin chamber shape
[ 1 ] Instytut Technologii i Inżynierii Chemicznej, Wydział Technologii Chemicznej, Politechnika Poznańska | [ P ] employee
2020
chapter in monograph / paper
english
- pressure-swirl atomizer
- design of atomizer
- discharge
- coefficient
- pressure drops
EN Unflagging interest in pressure-swirl atomizers forces continuous development of knowledge about their operation and construction. Although this type of atomizers had been described in a comprehensive way and the number of correlation equations describing atomization process is substantial, some construction features and their influence on the process have not still been described in a satisfactory way. In this study, the influence of modification of pressure-swirl atomizers construction on the values of discharge coefficient and pressure drops was analyzed. A transitory cone in three different variants, cylindrical, conical, profiled, was applied. The construction of the second group of atomizers was enriched with the presence of a blind hole in the swirl chamber. The enrichment of the construction in the form of a blind hole resulted in higher values of discharge coefficient in comparison to atomizers without a blind hole. In the turbulent flow range, the constant value of discharge coefficient, being independent from Reynolds number, was obtained both for atomizers with and without a blind hole. However, these values differed for individual pressure-swirl atomizers. Obtained results can be useful in the analysis and comparison of atomization effects for atomizers of various construction.
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