Breakup of colliding droplets and particles produced by heavy fuel oil pyrolysis; Energy; Vol. 283

Breakup of colliding droplets and particles produced by heavy fuel oil pyrolysis; Energy; Vol. 283

Bibliographic Details
Parent link:Energy.— .— Amsterdam: Elsevier Science Publishing Company Inc.
Vol. 283.— 2023.— Article number 128480, 12 p.
Main Author: Klimenko A. Andrey
Other Authors: Shlegel N. E. Nikita Evgenjevich, Strizhak P. A. Pavel Alexandrovich
Summary:Title screen
Heavy fuel oil (HFO) obtained by blending oil refinery residue and cutter stock is actively used as fuel in marine engines and industrial boilers. However, the use of HFO presents a number of unresolved problems. In the lack of oxidizer, pyrolysis of HFO droplets in the flame core produces solid particles, and the fuel combustion temperature drops, increasing the solid phase concentration in the combustion chamber. This study investigates the water/HFO fragmentation behavior as the emulsion droplets collide with solid particles produced by their pyrolysis. According to the experimental findings, droplet-particle collisions can occur in two regimes: spreading and separation. A two-fold increase in the droplet to particle size ratio shifts the critical Weber number towards 10–20% higher values. To ensure the consistent separation regime with 2.5-mm droplets, the velocities should be 15–30% lower than with droplets of about 1 mm in radius. Larger particle size leads to a 20–30% increase in the resultant water/HFO droplet velocity. The research findings indicate that the arrangement of atomizers at an angle of less than 10° to each other will reduce the cost of thermal and electric energy production by almost 10%
Текстовый файл
AM_Agreement
Language:English
Published: 2023
Subjects:
электронный ресурс
труды учёных ТПУ
Water/heavy fuel oil emulsion
Secondary droplet atomization
Droplet pyrolysis
Droplet-particle collisions
Collision regimes
Secondary fragments
Online Access:https://doi.org/10.1016/j.energy.2023.128480
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=682052

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