Experimental studies on the spraying pattern of a swirl nozzle for coal dust control

Gao, Guijun, Wang, Changjiang and Kou, Ziming (2018) Experimental studies on the spraying pattern of a swirl nozzle for coal dust control. Applied Sciences, 8 (10). 1770 1-14. ISSN 2076-3417

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Abstract

The experimental and numerical studies were performed to understand the atomization mechanism of pressure spray of a swirl nozzle. The design and performance parameters such as spray cone angle, velocity of particles, spray pressure, and Sauter Mean Diameter (SMD) of the droplets were studied using a laser particle size analyzer and high-speed camera. The results show that the SMD increases at first, then decreases as the spray distance increases, and finally tends to be stable after 1 m. The SMD is largest in the center of the spray field and decreases gradually along the radial direction. The SMD distribution is more concentrated near the nozzle. Increasing spray pressure and deceasing nozzle diameter both can make the SMD distribution more concentrated and uniform. The swirl nozzle has been used in a coal mine and was shown to be very effective in suppressing coal dust compared to other traditional nozzles.

Item Type: Article
Keywords: swirl nozzle, coal dust collector, particle SMD, atomization
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Research Centres and Groups: Dynamics, Control and Vehicle Research Group
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Depositing User: Chang Wang
Date Deposited: 08 Oct 2018 11:44
Last Modified: 08 Oct 2018 11:45
URI: http://srodev.sussex.ac.uk/id/eprint/79213

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