ANALYSIS OF EXPLOSION SEVERITY OF TEA POWDER AT DIFFERENT PARTICLE SIZE AND CONCENTRATION IN A CONFINED SPACE

Authors

  • Nur Hikmah Semawi aDepartment of Chemical Engineering, College of Engineering, Universiti Malaysia Pahang, 26300, Gambang, Pahang, Malaysia https://orcid.org/0000-0003-4818-5510
  • Siti Zubaidah Sulaiman aDepartment of Chemical Engineering, College of Engineering, Universiti Malaysia Pahang, 26300, Gambang, Pahang, Malaysia https://orcid.org/0000-0002-2859-1610
  • Rohaida Che Man aDepartment of Chemical Engineering, College of Engineering, Universiti Malaysia Pahang, 26300, Gambang, Pahang, Malaysia
  • Siti Kholijah Abdul Mudalip aDepartment of Chemical Engineering, College of Engineering, Universiti Malaysia Pahang, 26300, Gambang, Pahang, Malaysia https://orcid.org/0000-0002-9759-2756
  • Shalyda Md Shaarani aDepartment of Chemical Engineering, College of Engineering, Universiti Malaysia Pahang, 26300, Gambang, Pahang, Malaysia
  • Zatul Iffah Mohd Arshad Faculty of Chemical and Process Engineering Technology, Universiti Malaysia Pahang, 26300, Gambang, Pahang, Malaysia

DOI:

https://doi.org/10.11113/jurnalteknologi.v84.17417

Keywords:

Dust, flame, rate of pressure rise, explosion, propagation

Abstract

Tea contains compounds rich in carbon-hydrogen bonds. When tea dust is suspended in air, across a variety of particle sizes and concentrations, in the presence of spark, it can combust, therefore presenting an explosion hazard. The explosion pressure properties of tea dust of four different dust concentrations (1000 g/m³, 1500 g/m³, 2000 g/m³ and 2500 g/m³) were conducted in a 20-L spherical explosion test vessel under five distinct particle sizes (71 µm, 125 µm, 160 µm, 180 µm and 250 µm). According to the findings, the explosion pressure characteristic is strongly related to dust concentration and particle size. Moisture content also has an effect on explosion propagation. The dried tea dust reached the maximum explosion pressure faster than undried tea dust. Among of the concentration and particle size range tested, the highest explosion pressure, 14.6 bar, was recorded at 2000 g/m³ with particle size 125 μm. The explosion index was 222 bar/s. It was shown that at higher dust concentration (≥2000 g/m3) and smaller particle sizes (≤125 μm) the explosion became more severe, whereby the flame accelerated at a higher rate and raised the explosion pressure drastically. The pressure characteristic changed as the conditions in which they occurred changed. These analyses and predictions are essential for achieving safe and optimal performance of tea manufacturing technology as well as the development of new applications.

References

Štroch, P., 2016. Do not Underestimate Danger of Explosion: Even Dust Can Destroy Equipment and Kill. Perspectives in Science. 7: 312-316.

DOI: http://dx.doi.org/10.1016/j.pisc.2015.11.048.

Kuracina, R., Szabova, Z., & Buranska, E. 2019. Study of Explosion Characteristics of the Wheat Flour Dust Clouds in Dependence of the Particle Size Distribution. Sciencedo. 27(44): 65-71.

DOI: http://dx.doi.org/10.2478/rput-2019-0007.

Eckhoff, R. K., & Li, G. 2021. Industrial Dust Explosions. A Brief Review. Applied Science. 11: 1-18.

DOI: https://doi.org/10.3390/app11041669.

Eckhoff, R. K. 2009. Understanding Dust Explosions. The Role of Powder Science and Technology. Journal of Loss Prevention in the Process Industries. 22(1): 105-116.

DOI: https://doi.org/10.1016/j.jlp.2008.07.006.

Liu, Q., Hu, Y., Bai, C., & Chen, M. 2013. Methane/Coal Dust/Air Explosion and their Suppression by Solid Particle Suppressing Agents in a Large Scale Experimental Tube. Journal of Loss Prevention in Process Industries. 26: 310-316.

DOI: https://doi.org/10.1016/j.jlp.2011.05.004.

Adnan, M., Ahmad A., Ahmed A., Khalid N., & Hayat I. 2013. Chemical Compositions and Sensory Evaluation of Tea (Camellia Sinensis) Commercialized in Pakistan. Food Technology. 45(3): 901-907.

Yan X., and Yu J. 2014. Dust Explosion Venting of Small Vessels at the Elevated Static Activation Overpressure. Powder Technology. 261: 250-256.

DOI: https://doi.org/10.1016/j.powtec.2014.04.043.

Proust, C., Accorsi, A., & Dupont L. 2007. Measuring the Violence of Dust Explosion with the 20L Sphere and with the Standard ISO 1 m3 Vessel: Systematic Comparison and Analysis of the Discrepancies. Journal of Loss Prevention in Process Industries. 20(4-6): 599-606.

DOI: https://doi.org/10.1016/j.jlp.2007.04.032.

Dufaud, O., Traore, M., Perrin L., Chazalet, S., & Thomas, D. 2010. Experimental Investigation and Modelling of Aluminium Dusts Explosions in the 20L Sphere. Journal of Loss Prevention in Process Industries. 23(2): 226-236.

DOI: https://doi.org/10.1016/j.jlp.2009.07.019.

Dobashi, R. 2017. Studies on Accidental Gas and Dust Explosions. Fire Safety. 91: 21-27.

DOI: https://doi.org/10.1016/j.firesaf.2017.04.029.

Azam, S., & Mishra, D. P. 2019. Effects of Particle Size, Dust Concentration and Dust-Dispersion-Air Pressure on Rock Dust Inertant Requirement for Coal Dust Explosion Suppression in Underground Coal Mines. Process Safety and Environmental Protection. 126: 35-43.

DOI: https://doi.org/10.1016/j.psep.2019.03.030.

Toth, M., Orella, C., Roth, M., Muzzio, D., Fisher, E., Vickery, T., Bachert, D., Stone, S., & Bader, J. 2020. Partial Inertion as Basis of Safety for Pharmaceutical Operations Involving Highly Ignition Sensitive Powders and Modeling Combustion Properties as a Function of Oxygen Concentration. Process Safety Progress. 40(1): 1-21

DOI: https://doi.org/10.1002/prs.12175.

Siwek, R. and C. Cesana. 2020. Operating Instructions 20 L Apparatus. 6 ed. Switzerland: Kuhner AG: Birsfelden.

Eades, R., Perry, K., Johnson, T., & Miller, J. 2018. Evaluation of the 20L Dust Explosibility Testing Chamber and Comparison to a Modified 38L Vessel for Underground Coal. International Journal of Mining Science and Technology. 28(6): 885-890.

DOI: https://doi.org/10.1016/j.ijmst.2018.05.016.

Segers, T., Norman, F., Youssefi, R., Maier, J., & Verplaetsen, F. 2019. The Influence of Sieving on the Dust Explosion Characteristics of a Lignite Coal. Chemical Engineering Transactions. 77: 475-480.

DOI: https://doi.org/10.3303/CET1977080.

Eckhoff, R. K. 2003. Dust Explosions in the Process Industries: Identification, Assessment and Control of Dust Hazards. Gulf Professional Publishing, Oxford, United Kingdom.

Cashdollar, K. 2000. Overview of Dust Explosibility Characteristics. Journal of Loss Prevention in the Process Industries. 13(3-5): 183-199.

DOI: https://doi.org/10.1016/S0950-4230(99)00039-X.

Santandrea, A., Bonamis, F., Pacault, S., Vignes, A., Perrin, L., & Dufaud, O. 2019. Influence of the Particle Size Distribution on Dust Explosion: How to Choose the Right Metrics? Chemical Engineering Transactions. 667-672.

DOI: http://dx.doi.org/10.3303/CET1977112.

Moradi, H., Sereshki, F., Ataei, M., & Nazari, M. 2020. Evaluation of the Effect of the Moisture Content of Coal Dust on the Prediction of the Coal Dust Explosion Index. The Mining-Geology-Petroleum Engineering Bulletin. 37-47.

DOI: http://dx.doi.org/10.17794/rgn.2020.1.4.

Chang, S-C., Cheng, Y-C., Zhang, X-H., & Shu, C-M., 2021. Effects of Moisture Content on Explosion Characteristics of Incense Dust in Incense Factory. Thermal Analysis and Calorimetry.

DOI: http://dx.doi.org/10.1007/s10973-021-10588-7.

Lee, K., Kim, H., Chu, K., & Ko, K. 2011. The Generation Characteristics of Instant Dusts at the Time of Structure Demolition by Explosion. Science and Technology of Energetic Materials. 72: 26-35.

Dufaud, O., Traore, M., Perrin, L., Chazalet, S., & Thomas, D. 2010. Experimental Investigation and Modelling of Aluminium Dusts Explosions in the 20L Sphere. Loss Prevention Process Industries. 23(2): 226-236.

DOI: https://doi.org/10.1016/j.jlp.2009.07.019.

Yuan, J., Wei, W., Huang, W., Du, B., Liu, L., & Zhu, J. 2014. Experimental Investigations on the Roles of Moisture in Coal Dust Explosion. Journal of the Taiwan Institute of Chemical Engineers. 45(5): 2325-2333.

https://doi.org/10.1016/j.jtice.2014.05.022.

Todaka, M., Kowhakul, W., Masamoto, H., & Shigematsu, M. 2016. Thermal Analysis and Dust Explosion Characteristics of Spent Coffee Grounds and Jatropha. Loss Prevention in the Process Industries. 44: 538-543.

DOI: https://doi.org/10.1016/j.jlp.2016.08.008.

Anwar, A. H. S., Nur, N. S., Mohamad, W. A. K., Yanti, M. J., Mazura, J., & Zaki, Y. Z. 2018. Effect of Particle Size on the Explosive Characteristics of Grain (Wheat) Starch in a Closed Cylindrical Vessel. Chemical Engineering Transactions. 63(10): 213-225.

DOI: http://dx.doi.org/10.3303/CET1863096.

Benedetto, A., Garcia., & Russo, P. 2012. Combined Effect of Ignition Energy and Initial Turbulence on the Explosion Behaviour of Lean Gas/Dust-Air Mixtures. Industrial Engineering Chemistry Research. 51(22): 772-779.

DOI: https://doi.org/10.1021/ie201664a.

OSHA. 2009. Hazard Communication Guidance for Combustible Dusts. U.S. Department of Labor accessed on 20.12.2020.

Downloads

Published

2022-05-30

How to Cite

Semawi, N. H., Sulaiman, S. Z., Che Man, R., Abdul Mudalip, S. K., Md Shaarani, S., & Mohd Arshad, Z. I. (2022). ANALYSIS OF EXPLOSION SEVERITY OF TEA POWDER AT DIFFERENT PARTICLE SIZE AND CONCENTRATION IN A CONFINED SPACE. Jurnal Teknologi, 84(4), 49-55. https://doi.org/10.11113/jurnalteknologi.v84.17417

Issue

Section

Science and Engineering