The influence of droplet sizes of coalwater slurry containing petrochemicals on integral ignition characteristics

Abstract

Nowadays, an urgent problem for energy sector development is to expand the energy resource base and to utilize efficiently low-grade waste of processing coal, oil and waste flammable liquids. This paper describes an experimental study of the integral characteristics (the times of delay and complete combustion, limit or minimum oxidizer temperatures), conditions and features of the sustainable ignition of coal-water slurry droplets containing petrochemicals (CWSP) in the hot air flow. Composite fuel is a composition based on KEK (processing waste of coal preparation plants) of grade “K” and waste turbine oil. The experimental results are presented for the ignition of single CWSP droplets (radius is 0.2mm-1mm) in the air flow with the limit (minimum) temperature of 800K-1000K. Also, the study sets the times of ignition delay and complete combustion of composite fuel by varying the initial droplet sizes and the oxidizer temperature.

Original language	English
Pages (from-to)	265-276
Number of pages	12
Journal	JP Journal of Heat and Mass Transfer
Volume	13
Issue number	2
DOIs	https://doi.org/10.17654/HM013020265
Publication status	Published - 1 May 2016

Keywords

Coal-water slurry containing petrochemicals
Droplets
Ignition
Integral characteristics
Sizes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Access to Document

10.17654/HM013020265

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title = "The influence of droplet sizes of coalwater slurry containing petrochemicals on integral ignition characteristics",

abstract = "Nowadays, an urgent problem for energy sector development is to expand the energy resource base and to utilize efficiently low-grade waste of processing coal, oil and waste flammable liquids. This paper describes an experimental study of the integral characteristics (the times of delay and complete combustion, limit or minimum oxidizer temperatures), conditions and features of the sustainable ignition of coal-water slurry droplets containing petrochemicals (CWSP) in the hot air flow. Composite fuel is a composition based on KEK (processing waste of coal preparation plants) of grade “K” and waste turbine oil. The experimental results are presented for the ignition of single CWSP droplets (radius is 0.2mm-1mm) in the air flow with the limit (minimum) temperature of 800K-1000K. Also, the study sets the times of ignition delay and complete combustion of composite fuel by varying the initial droplet sizes and the oxidizer temperature.",

keywords = "Coal-water slurry containing petrochemicals, Droplets, Ignition, Integral characteristics, Sizes",

author = "Nyashina, {Galina S.} and Kosintsev, {Andrey G.} and Shlegel, {Nikita E.} and Strizhak, {Pavel A.}",

year = "2016",

month = may,

day = "1",

doi = "10.17654/HM013020265",

language = "English",

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pages = "265--276",

journal = "JP Journal of Heat and Mass Transfer",

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T1 - The influence of droplet sizes of coalwater slurry containing petrochemicals on integral ignition characteristics

AU - Nyashina, Galina S.

AU - Kosintsev, Andrey G.

AU - Shlegel, Nikita E.

AU - Strizhak, Pavel A.

PY - 2016/5/1

Y1 - 2016/5/1

N2 - Nowadays, an urgent problem for energy sector development is to expand the energy resource base and to utilize efficiently low-grade waste of processing coal, oil and waste flammable liquids. This paper describes an experimental study of the integral characteristics (the times of delay and complete combustion, limit or minimum oxidizer temperatures), conditions and features of the sustainable ignition of coal-water slurry droplets containing petrochemicals (CWSP) in the hot air flow. Composite fuel is a composition based on KEK (processing waste of coal preparation plants) of grade “K” and waste turbine oil. The experimental results are presented for the ignition of single CWSP droplets (radius is 0.2mm-1mm) in the air flow with the limit (minimum) temperature of 800K-1000K. Also, the study sets the times of ignition delay and complete combustion of composite fuel by varying the initial droplet sizes and the oxidizer temperature.

AB - Nowadays, an urgent problem for energy sector development is to expand the energy resource base and to utilize efficiently low-grade waste of processing coal, oil and waste flammable liquids. This paper describes an experimental study of the integral characteristics (the times of delay and complete combustion, limit or minimum oxidizer temperatures), conditions and features of the sustainable ignition of coal-water slurry droplets containing petrochemicals (CWSP) in the hot air flow. Composite fuel is a composition based on KEK (processing waste of coal preparation plants) of grade “K” and waste turbine oil. The experimental results are presented for the ignition of single CWSP droplets (radius is 0.2mm-1mm) in the air flow with the limit (minimum) temperature of 800K-1000K. Also, the study sets the times of ignition delay and complete combustion of composite fuel by varying the initial droplet sizes and the oxidizer temperature.

KW - Coal-water slurry containing petrochemicals

KW - Droplets

KW - Ignition

KW - Integral characteristics

KW - Sizes

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