Experimental Studies on the Spraying Pattern of a Swirl Nozzle for Coal Dust Control

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...

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Main Authors: Guijun Gao, Changjiang Wang, Ziming Kou
Format: Article
Language:English
Published: MDPI AG 2018-09-01
Series:Applied Sciences
Subjects:
Online Access:http://www.mdpi.com/2076-3417/8/10/1770
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author Guijun Gao
Changjiang Wang
Ziming Kou
author_facet Guijun Gao
Changjiang Wang
Ziming Kou
author_sort Guijun Gao
collection DOAJ
description 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.
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spelling doaj.art-a4d5131445e948a78b7cdefb4578b4842022-12-22T03:08:19ZengMDPI AGApplied Sciences2076-34172018-09-01810177010.3390/app8101770app8101770Experimental Studies on the Spraying Pattern of a Swirl Nozzle for Coal Dust ControlGuijun Gao0Changjiang Wang1Ziming Kou2College of Mechanical Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaDepartment of Engineering and Design, University of Sussex, Brighton BN1 9RH, UKCollege of Mechanical Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaThe 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.http://www.mdpi.com/2076-3417/8/10/1770swirl nozzlecoal dust collectorparticle SMDatomization
spellingShingle Guijun Gao
Changjiang Wang
Ziming Kou
Experimental Studies on the Spraying Pattern of a Swirl Nozzle for Coal Dust Control
Applied Sciences
swirl nozzle
coal dust collector
particle SMD
atomization
title Experimental Studies on the Spraying Pattern of a Swirl Nozzle for Coal Dust Control
title_full Experimental Studies on the Spraying Pattern of a Swirl Nozzle for Coal Dust Control
title_fullStr Experimental Studies on the Spraying Pattern of a Swirl Nozzle for Coal Dust Control
title_full_unstemmed Experimental Studies on the Spraying Pattern of a Swirl Nozzle for Coal Dust Control
title_short Experimental Studies on the Spraying Pattern of a Swirl Nozzle for Coal Dust Control
title_sort experimental studies on the spraying pattern of a swirl nozzle for coal dust control
topic swirl nozzle
coal dust collector
particle SMD
atomization
url http://www.mdpi.com/2076-3417/8/10/1770
work_keys_str_mv AT guijungao experimentalstudiesonthesprayingpatternofaswirlnozzleforcoaldustcontrol
AT changjiangwang experimentalstudiesonthesprayingpatternofaswirlnozzleforcoaldustcontrol
AT zimingkou experimentalstudiesonthesprayingpatternofaswirlnozzleforcoaldustcontrol