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Assessment on the severity of low density polyethylene (LDPE)_Ethylene hybrid explosion.pdf Available under License Creative Commons Attribution. Download (652kB) | Preview |
Abstract
The potential explosion for low-density polyethylene (LDPE) dust is greatly increased due to the presence of ethylene gas. Thus, this study was aimed to investigate the explosion severity of polyethylene/ethylene hybrid mixture in a 20-L spherical vessel. The explosion setup is equipped with two chemical ignitors and Kistler piezoelectric pressure sensors to ignite the hybrid mixture and to quantify the propagation of pressure wave during the explosion process respectively. The following hybrid explosion characteristics including the maximum explosion overpressure (Pmax), the maximum rate of pressure rise (dP/dT) and deflagration index (KST) were evaluated. This study concluded that the explosion severity of polyethylene/ethylene hybrid mixture steeply increases as the gas concentration and particle size increase to 15 g/m3 and 125 μm, beyond which the Pmax and dP/dT steadily decrease. The highest Pmax and dP/dt were recorded at 5.5 bar and, 50.5 bar/s with the KST value is 50 bar.m/s indicating the LDPE/ethylene hybrid dust explosion possess a weak explosion.
| Item Type: | Conference or Workshop Item (Lecture) |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Deflagration index; Explosion overpressure; Explosion process; Low density polyethylene(LDPE); Maximum rate of pressure rise; Piezoelectric pressure sensors; Potential explosion; Spherical vessels |
| Subjects: | Q Science > QD Chemistry T Technology > T Technology (General) T Technology > TP Chemical technology |
| Faculty/Division: | Institute of Postgraduate Studies Faculty of Chemical and Process Engineering Technology |
| Depositing User: | Mr Muhamad Firdaus Janih@Jaini |
| Date Deposited: | 24 May 2023 04:33 |
| Last Modified: | 24 May 2023 04:33 |
| URI: | http://umpir.ump.edu.my/id/eprint/35888 |
| Download Statistic: | View Download Statistics |
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