Regimes of the Combustion of Organic Coal–Water Fuels

T. R. Valiullin, K. Yu Vershinina, S. Yu Lyrshchikov, S. A. Shevyrev

Research output: Contribution to journalArticle

Abstract

The results of an analysis of the combustion behavior of the drops of organic coal–water fuels (OCWFs) prepared based on the flotation products (cakes) of the enrichment the coal of five grades (longflame, gas, coking, low-caking, and lean coals) and two petroleum products (petroleum residue and spent turbine oil) are presented. The experiments were performed under the conditions of the stationary fastening of an OCWF drop on the junction of a quick-response thermocouple in a flow of heated (from 500 to 1000°C) air. The following three combustion regimes were revealed for all of the test OCWF compositions: stepwise regime with slow heating (smoldering), intense gas generation regime with the boiling of liquid fuel components (boiling), and regime with a distinct tear-off zone of gas flow (torch). It was shown that the occurrence of the above combustion behaviors substantially depends on the characteristics of the OCWF components: the ash content and the yield of volatile substances of coal cakes and the boiling points and the ignition and combustion temperatures of the petroleum products used. Based on the results of the experiments, the ranges of air temperature changes characteristic of each of the three combustion regimes of fuel suspensions were established.

Original languageEnglish
Pages (from-to)78-85
Number of pages8
JournalSolid Fuel Chemistry
Volume52
Issue number2
DOIs
Publication statusPublished - 1 Mar 2018

Fingerprint

Coal
Petroleum products
Ashes
Boiling liquids
Gases
Boiling point
Coking
Liquid fuels
Petroleum
Thermocouples
Air
Flotation
Flow of gases
Ignition
Suspensions
Oils
Turbines
Crude oil
Experiments
Heating

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Fuel Technology

Cite this

Regimes of the Combustion of Organic Coal–Water Fuels. / Valiullin, T. R.; Vershinina, K. Yu; Lyrshchikov, S. Yu; Shevyrev, S. A.

In: Solid Fuel Chemistry, Vol. 52, No. 2, 01.03.2018, p. 78-85.

Research output: Contribution to journalArticle

Valiullin, T. R. ; Vershinina, K. Yu ; Lyrshchikov, S. Yu ; Shevyrev, S. A. / Regimes of the Combustion of Organic Coal–Water Fuels. In: Solid Fuel Chemistry. 2018 ; Vol. 52, No. 2. pp. 78-85.
@article{08a83469758f436da5f4c00b397d49ca,
title = "Regimes of the Combustion of Organic Coal–Water Fuels",
abstract = "The results of an analysis of the combustion behavior of the drops of organic coal–water fuels (OCWFs) prepared based on the flotation products (cakes) of the enrichment the coal of five grades (longflame, gas, coking, low-caking, and lean coals) and two petroleum products (petroleum residue and spent turbine oil) are presented. The experiments were performed under the conditions of the stationary fastening of an OCWF drop on the junction of a quick-response thermocouple in a flow of heated (from 500 to 1000°C) air. The following three combustion regimes were revealed for all of the test OCWF compositions: stepwise regime with slow heating (smoldering), intense gas generation regime with the boiling of liquid fuel components (boiling), and regime with a distinct tear-off zone of gas flow (torch). It was shown that the occurrence of the above combustion behaviors substantially depends on the characteristics of the OCWF components: the ash content and the yield of volatile substances of coal cakes and the boiling points and the ignition and combustion temperatures of the petroleum products used. Based on the results of the experiments, the ranges of air temperature changes characteristic of each of the three combustion regimes of fuel suspensions were established.",
author = "Valiullin, {T. R.} and Vershinina, {K. Yu} and Lyrshchikov, {S. Yu} and Shevyrev, {S. A.}",
year = "2018",
month = "3",
day = "1",
doi = "10.3103/S0361521918020106",
language = "English",
volume = "52",
pages = "78--85",
journal = "Solid Fuel Chemistry (English Translation of Khimiya Tverdogo Topliva)",
issn = "0361-5219",
publisher = "Allerton Press Inc.",
number = "2",

}

TY - JOUR

T1 - Regimes of the Combustion of Organic Coal–Water Fuels

AU - Valiullin, T. R.

AU - Vershinina, K. Yu

AU - Lyrshchikov, S. Yu

AU - Shevyrev, S. A.

PY - 2018/3/1

Y1 - 2018/3/1

N2 - The results of an analysis of the combustion behavior of the drops of organic coal–water fuels (OCWFs) prepared based on the flotation products (cakes) of the enrichment the coal of five grades (longflame, gas, coking, low-caking, and lean coals) and two petroleum products (petroleum residue and spent turbine oil) are presented. The experiments were performed under the conditions of the stationary fastening of an OCWF drop on the junction of a quick-response thermocouple in a flow of heated (from 500 to 1000°C) air. The following three combustion regimes were revealed for all of the test OCWF compositions: stepwise regime with slow heating (smoldering), intense gas generation regime with the boiling of liquid fuel components (boiling), and regime with a distinct tear-off zone of gas flow (torch). It was shown that the occurrence of the above combustion behaviors substantially depends on the characteristics of the OCWF components: the ash content and the yield of volatile substances of coal cakes and the boiling points and the ignition and combustion temperatures of the petroleum products used. Based on the results of the experiments, the ranges of air temperature changes characteristic of each of the three combustion regimes of fuel suspensions were established.

AB - The results of an analysis of the combustion behavior of the drops of organic coal–water fuels (OCWFs) prepared based on the flotation products (cakes) of the enrichment the coal of five grades (longflame, gas, coking, low-caking, and lean coals) and two petroleum products (petroleum residue and spent turbine oil) are presented. The experiments were performed under the conditions of the stationary fastening of an OCWF drop on the junction of a quick-response thermocouple in a flow of heated (from 500 to 1000°C) air. The following three combustion regimes were revealed for all of the test OCWF compositions: stepwise regime with slow heating (smoldering), intense gas generation regime with the boiling of liquid fuel components (boiling), and regime with a distinct tear-off zone of gas flow (torch). It was shown that the occurrence of the above combustion behaviors substantially depends on the characteristics of the OCWF components: the ash content and the yield of volatile substances of coal cakes and the boiling points and the ignition and combustion temperatures of the petroleum products used. Based on the results of the experiments, the ranges of air temperature changes characteristic of each of the three combustion regimes of fuel suspensions were established.

UR - http://www.scopus.com/inward/record.url?scp=85045727708&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85045727708&partnerID=8YFLogxK

U2 - 10.3103/S0361521918020106

DO - 10.3103/S0361521918020106

M3 - Article

VL - 52

SP - 78

EP - 85

JO - Solid Fuel Chemistry (English Translation of Khimiya Tverdogo Topliva)

JF - Solid Fuel Chemistry (English Translation of Khimiya Tverdogo Topliva)

SN - 0361-5219

IS - 2

ER -