Staff View: Influence of divergent length on the gas-particle flowin dual hose dry ice blasting nozzle geometry

Influence of divergent length on the gas-particle flowin dual hose dry ice blasting nozzle geometry

A numerical simulation study was performed to examine the effect of nozzle geometry and divergent length on gas-particle flows in dual hose dry ice blasting. The simultaneous model of mass momentum and energy exchange between two phases was solved iteratively. The phases are solid dry ice particle a...

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Main Authors:	Hidayat Mat, Mohamad Nur, Asmuin, Nor Zelawati, Md Basir, Md Faisal, Goodarzi, Marjan, Abd Rahman, Muhammad Faqhrurrazi, Khairulfuaad, Riyadhthusollehan, Jabbar, Balasem Abdulameer, Mohd Kasihmuddin, Mohd Shareduwan
Format:	Article
Language:	English
Published:	Elsevier 2020
Subjects:	T Technology (General) TJ241-254.7 Machine construction (General)
Online Access:	http://eprints.uthm.edu.my/4752/1/AJ%202020%20%2823%29.pdf http://eprints.uthm.edu.my/4752/ https://doi.org/10.1016/j.powtec.2020.01.060
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spelling	my.uthm.eprints.47522021-12-16T05:05:52Z http://eprints.uthm.edu.my/4752/ Influence of divergent length on the gas-particle flowin dual hose dry ice blasting nozzle geometry Hidayat Mat, Mohamad Nur Asmuin, Nor Zelawati Md Basir, Md Faisal Goodarzi, Marjan Abd Rahman, Muhammad Faqhrurrazi Khairulfuaad, Riyadhthusollehan Jabbar, Balasem Abdulameer Mohd Kasihmuddin, Mohd Shareduwan T Technology (General) TJ241-254.7 Machine construction (General) A numerical simulation study was performed to examine the effect of nozzle geometry and divergent length on gas-particle flows in dual hose dry ice blasting. The simultaneous model of mass momentum and energy exchange between two phases was solved iteratively. The phases are solid dry ice particle and compressible air fluid as a working medium. The results were presented in the gas flow field along the nozzle centerline. The results showed that increasing divergent length decreases the gas-particle density along the centerline; and the density development along the nozzle centerline decreased along the length. Eddy viscosity of the nozzle cavity was steady for length of 0.25 m, but increased drastically for higher values. The substantial increase in eddy viscosity after that position is due to the mixing flow between dry ice pellet and compressed gas which is diverging out from the nozzle outlet area. Thus, the mixing flow experienced back pressure from the atmospheric pressure. The particle mass concentration decreased by increasing nozzle centerline coordinates. The pressure increased along the length; however, it dropped at the end due to the reverse pressure. The temperature increased steadily because of conversion of turbulence to internal thermal energy. The characteristics of gas-particle flow in the nozzle cavity provide better understanding of multiphase flow in turbine and jet engine flow analysis. Elsevier 2020 Article PeerReviewed text en http://eprints.uthm.edu.my/4752/1/AJ%202020%20%2823%29.pdf Hidayat Mat, Mohamad Nur and Asmuin, Nor Zelawati and Md Basir, Md Faisal and Goodarzi, Marjan and Abd Rahman, Muhammad Faqhrurrazi and Khairulfuaad, Riyadhthusollehan and Jabbar, Balasem Abdulameer and Mohd Kasihmuddin, Mohd Shareduwan (2020) Influence of divergent length on the gas-particle flowin dual hose dry ice blasting nozzle geometry. Powder Technology, 364. pp. 152-158. ISSN 0032-5910 https://doi.org/10.1016/j.powtec.2020.01.060
institution	Universiti Tun Hussein Onn Malaysia
building	UTHM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tun Hussein Onn Malaysia
content_source	UTHM Institutional Repository
url_provider	http://eprints.uthm.edu.my/
language	English
topic	T Technology (General) TJ241-254.7 Machine construction (General)
spellingShingle	T Technology (General) TJ241-254.7 Machine construction (General) Hidayat Mat, Mohamad Nur Asmuin, Nor Zelawati Md Basir, Md Faisal Goodarzi, Marjan Abd Rahman, Muhammad Faqhrurrazi Khairulfuaad, Riyadhthusollehan Jabbar, Balasem Abdulameer Mohd Kasihmuddin, Mohd Shareduwan Influence of divergent length on the gas-particle flowin dual hose dry ice blasting nozzle geometry
description	A numerical simulation study was performed to examine the effect of nozzle geometry and divergent length on gas-particle flows in dual hose dry ice blasting. The simultaneous model of mass momentum and energy exchange between two phases was solved iteratively. The phases are solid dry ice particle and compressible air fluid as a working medium. The results were presented in the gas flow field along the nozzle centerline. The results showed that increasing divergent length decreases the gas-particle density along the centerline; and the density development along the nozzle centerline decreased along the length. Eddy viscosity of the nozzle cavity was steady for length of 0.25 m, but increased drastically for higher values. The substantial increase in eddy viscosity after that position is due to the mixing flow between dry ice pellet and compressed gas which is diverging out from the nozzle outlet area. Thus, the mixing flow experienced back pressure from the atmospheric pressure. The particle mass concentration decreased by increasing nozzle centerline coordinates. The pressure increased along the length; however, it dropped at the end due to the reverse pressure. The temperature increased steadily because of conversion of turbulence to internal thermal energy. The characteristics of gas-particle flow in the nozzle cavity provide better understanding of multiphase flow in turbine and jet engine flow analysis.
format	Article
author	Hidayat Mat, Mohamad Nur Asmuin, Nor Zelawati Md Basir, Md Faisal Goodarzi, Marjan Abd Rahman, Muhammad Faqhrurrazi Khairulfuaad, Riyadhthusollehan Jabbar, Balasem Abdulameer Mohd Kasihmuddin, Mohd Shareduwan
author_facet	Hidayat Mat, Mohamad Nur Asmuin, Nor Zelawati Md Basir, Md Faisal Goodarzi, Marjan Abd Rahman, Muhammad Faqhrurrazi Khairulfuaad, Riyadhthusollehan Jabbar, Balasem Abdulameer Mohd Kasihmuddin, Mohd Shareduwan
author_sort	Hidayat Mat, Mohamad Nur
title	Influence of divergent length on the gas-particle flowin dual hose dry ice blasting nozzle geometry
title_short	Influence of divergent length on the gas-particle flowin dual hose dry ice blasting nozzle geometry
title_full	Influence of divergent length on the gas-particle flowin dual hose dry ice blasting nozzle geometry
title_fullStr	Influence of divergent length on the gas-particle flowin dual hose dry ice blasting nozzle geometry
title_full_unstemmed	Influence of divergent length on the gas-particle flowin dual hose dry ice blasting nozzle geometry
title_sort	influence of divergent length on the gas-particle flowin dual hose dry ice blasting nozzle geometry
publisher	Elsevier
publishDate	2020
url	http://eprints.uthm.edu.my/4752/1/AJ%202020%20%2823%29.pdf http://eprints.uthm.edu.my/4752/ https://doi.org/10.1016/j.powtec.2020.01.060
_version_	1738581294222147584
score	13.211869

Influence of divergent length on the gas-particle flowin dual hose dry ice blasting nozzle geometry

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