Proceedings of the 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023)

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Experimental Study on Suppression of NH4H2PO4 on Cassava Starch Dust Explosion

Authors
Yue Sun1, Shunbing Zhu1, *, Lujia Tao1, Xuemei Wu1
1College of Safety Science and Engineering, Nanjing Tech University, Nanjing, Jiangsu, China
*Corresponding author. Email: 2934399475@qq.com
Corresponding Author
Shunbing Zhu
Available Online 24 April 2024.
DOI
10.2991/978-94-6463-398-6_69How to use a DOI?
Keywords
cassava starch dust; NH4H2PO4; dust explosion; suppression
Abstract

In order to study the inhibition effect of inert powder NH4H2PO4 on the cassava starch dust explosion. Using the 20L spherical explosion experimental device and the Hartmann tube experimental device to test the effects of NH4H2PO4 on the dust explosion parameters and flame propagation characteristics of cassava starch. The results show that NH4H2PO4 can effectively reduce the maximum explosion pressure, maximum explosion index, maximum flame propagation height and maximum velocity of cassava starch. What’s more, the inhibition effect increases with the increase of NH4H2PO4 mass fraction and the decrease of particle size. According to the analysis of the explosion suppression mechanism of NH4H2PO4, water vapor and free ammonia will be produced during the decomposition of NH4H2PO4. The water vapor will absorb heat in the surrounding environment and reduce Oxygen content, and the free ammonia can capture free radical OH and terminate the chain reaction. Therefore, NH4H2PO4 inhibits the explosion of cassava starch dust through both physical and chemical effects.

Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023)
Series
Atlantis Highlights in Engineering
Publication Date
24 April 2024
ISBN
10.2991/978-94-6463-398-6_69
ISSN
2589-4943
DOI
10.2991/978-94-6463-398-6_69How to use a DOI?
Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Yue Sun
AU  - Shunbing Zhu
AU  - Lujia Tao
AU  - Xuemei Wu
PY  - 2024
DA  - 2024/04/24
TI  - Experimental Study on Suppression of NH₄H₂PO₄ on Cassava Starch Dust Explosion
BT  - Proceedings of the 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023)
PB  - Atlantis Press
SP  - 710
EP  - 719
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-398-6_69
DO  - 10.2991/978-94-6463-398-6_69
ID  - Sun2024
ER  -