Atomization of composite liquid fuels in experimental setup with variated gas temperature and pressure; Fuel; Vol. 358, Pt. B

Dades bibliogràfiques
Parent link:Fuel.— .— Amsterdam: Elsevier Science Publishing Company Inc.
Vol. 358, Pt. B.— 2024.— Artical number 130213, 19 p.
Autor corporatiu: National Research Tomsk Polytechnic University
Altres autors: Kuznetsov G. V. Geny Vladimirovich, Volokitin D. I. Dmitry Ivanovich, Volkov R. S. Roman Sergeevich, Podgornaya E. R. Elizaveta Romanovna, Strizhak P. A. Pavel Alexandrovich
Sumari:Title screen
The efficiency of slurry fuel combustion can be improved by developing a predictive mechanism to estimate fuel atomization characteristics. However, no data are available on slurry fuel atomization behavior under near-real conditions. This paper presents the experimental research findings on the combined and separate effect of gas temperature and pressure on slurry fuel atomization characteristics. The experiments involved composite liquid fuels based on water and filter cake (typical coal processing waste) in variable concentrations. These conditions are the same as in advanced fuel slurry preparation units involving pre-combustors, swirlers, and other elements. In this research we have recorded such spray characteristics as droplet sizes and velocities, volume fraction of droplets with given sizes, jet angle, as well as the angle its deviation from the original trajectory. As has been observed, an increase in the ambient gas temperature leads to a 30% increase in the jet velocity and a 40–60% increase in the volume fraction of small droplets, whereas a pressure increase, on the contrary, reduces these parameters by 11–32% and 100%, respectively). Combined effects of chamber gas pressure and temperature on atomization characteristics have been identified: the variation of atomization characteristics did not exceed 18%. Mathematical expressions have been obtained to predict the atomization characteristics of composite liquid fuels in power-generating units with the known gas temperature and pressure. Maps have been plotted using a set of dimensionless parameters that can help control droplet size, velocity, jet angles, and angles of its deviation from its original path
Текстовый файл
AM_Agreement
Idioma:anglès
Publicat: 2024
Matèries:
Accés en línia:https://doi.org/10.1016/j.fuel.2023.130213
Format: Electrònic Capítol de llibre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=672776

MARC

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330 |a The efficiency of slurry fuel combustion can be improved by developing a predictive mechanism to estimate fuel atomization characteristics. However, no data are available on slurry fuel atomization behavior under near-real conditions. This paper presents the experimental research findings on the combined and separate effect of gas temperature and pressure on slurry fuel atomization characteristics. The experiments involved composite liquid fuels based on water and filter cake (typical coal processing waste) in variable concentrations. These conditions are the same as in advanced fuel slurry preparation units involving pre-combustors, swirlers, and other elements. In this research we have recorded such spray characteristics as droplet sizes and velocities, volume fraction of droplets with given sizes, jet angle, as well as the angle its deviation from the original trajectory. As has been observed, an increase in the ambient gas temperature leads to a 30% increase in the jet velocity and a 40–60% increase in the volume fraction of small droplets, whereas a pressure increase, on the contrary, reduces these parameters by 11–32% and 100%, respectively). Combined effects of chamber gas pressure and temperature on atomization characteristics have been identified: the variation of atomization characteristics did not exceed 18%. Mathematical expressions have been obtained to predict the atomization characteristics of composite liquid fuels in power-generating units with the known gas temperature and pressure. Maps have been plotted using a set of dimensionless parameters that can help control droplet size, velocity, jet angles, and angles of its deviation from its original path 
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461 1 |t Fuel  |c Amsterdam  |n Elsevier Science Publishing Company Inc. 
463 1 |t Vol. 358, Pt. B  |v Artical number 130213, 19 p.  |d 2024 
610 1 |a электронный ресурс 
610 1 |a труды учёных ТПУ 
610 1 |a atomization 
610 1 |a composite liquid fuel 
610 1 |a overpressure 
610 1 |a elevated temperature 
610 1 |a mixing chambers 
610 1 |a slurry 
701 1 |a Kuznetsov  |b G. V.  |c Specialist in the field of heat power energy  |c Professor of Tomsk Polytechnic University, Doctor of Physical and Mathematical Sciences  |f 1949-  |g Geny Vladimirovich  |9 15963 
701 1 |a Volokitin  |b D. I.  |g Dmitry Ivanovich 
701 1 |a Volkov  |b R. S.  |c specialist in the field of power engineering  |c Associate Professor of the Tomsk Polytechnic University, candidate of technical Sciences  |f 1987-  |g Roman Sergeevich  |9 17499 
701 1 |a Podgornaya  |b E. R.  |g Elizaveta Romanovna 
701 1 |a Strizhak  |b P. A.  |c Specialist in the field of heat power energy  |c Doctor of Physical and Mathematical Sciences (DSc), Professor of Tomsk Polytechnic University (TPU)  |f 1985-  |g Pavel Alexandrovich  |9 15117 
712 0 2 |a National Research Tomsk Polytechnic University  |c (2009- )  |9 27197 
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