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Spraying Liquid Using Pneumatic Nozzle for Suspension Fuel

Abstract

Characteristics of gas-droplet flow created by spraying a liquid using an advanced pneumatic nozzle for suspension fuel were studied experimentally. The measurements were made using the shadow photography method. On the example of water, the disperse composition of the gas-droplet flow, jet expansion angle, and flow structure stability were determined for different regimes. It was shown that most droplets were less than 10 \(\mu\)m in size. The disperse composition of the flow remained unchanged for a wide range of operating parameters. The nozzle designed generates droplets of a size sufficient for efficient combustion of suspension fuel under real conditions.

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Funding

The study of disperse composition of gas-droplet flow was supported by an RFBR grant (project no. 18-29-24007); the visualization of gas-droplet flow by the shadow photography method was carried out within the framework of the state assignment to IT SB RAS (reg. no. AAAA-A17-117022850029-9).

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Correspondence to I. S. Anufriev.

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Anufriev, I.S., Shadrin, E.Y., Kopy’ev, E.P. et al. Spraying Liquid Using Pneumatic Nozzle for Suspension Fuel. J. Engin. Thermophys. 29, 542–548 (2020). https://doi.org/10.1134/S1810232820040025

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