Abstract
Atomization involves mass, energy, and impulse transfer, in such a complex way that the overall process can only be described by empirical and semi-empirical correlations to date. The phenomenon of atomization is used in numerous applications, e.g., in combustion technology and metallurgy. However, many formulae are available in the literature to derive mean diameters of the spray, size distribution functions are barely discussed. Based on the measurement results performed earlier by a Phase Doppler Anemometer, twenty probability density functions were evaluated and seven are discussed in detail over the course of the present paper. The atomization pressure was varied, and characteristic regimes of the spray were measured. Interestingly, the analysis showed that not only the three most commonly used probability density functions (Nukiyama-Tanasawa, Rosin-Rammler, and Gamma) are eligible for describing the size distribution of the spray.
Highlights
There are various liquid fuel systems for combustion applications in state-of-the-art technology
The term bio-fuel is referred to alternative fuel which is produced from biomass
Even though several works discuss droplet dynamics in sprays generated by twin-fluid atomizers [9, 10], the atomization process is still not fully understood
Summary
There are various liquid fuel systems for combustion applications in state-of-the-art technology. In order to combust liquid fuels, the atomization conditions have to be optimized to fulfill pollutant emission standards [2]. The use of bio-fuels to fuel gas turbine seems a viable solution for the problems of decreasing fossil-fuel reserves and environmental concerns. The use of these fuels in gas turbines would extend this application to aviation field. The development of alternative fuels in aviation is important and useful. The use of liquid and gaseous fuels from biomass will help to fulfill the Kyoto targets concerning global warming emissions. The term bio-fuel is referred to alternative fuel which is produced from biomass. Such fuels include bio-diesel, bio-ethanol, bio-methanol, pyrolysis oil, biogas, synthetic gas Representative diameters are used in the literature to Investigation of Fuel Atomization with Density Functions
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