Preliminary investigation on the effects of primary airflow to coal particle distribution in coal-fired boilers

N. A.W.Mohd Noor, H. Hassan, M. F. Hashim, Hasril Hasini, K. M. Munisamy

Research output: Contribution to journalConference article

Abstract

This paper presents an investigation on the effects of primary airflow to coal fineness in coal-fired boilers. In coal fired power plant, coal is pulverized in a pulverizer, and it is then transferred to boiler for combustion. Coal need to be ground to its desired size to obtain maximum combustion efficiency. Coarse coal particle size may lead to many performance problems such as formation of clinker. In this study, the effects of primary airflow to coal particles size and coal flow distribution were investigated by using isokinetic coal sampling and computational fluid dynamic (CFD) modelling. Four different primary airflows were tested and the effects to resulting coal fineness were recorded. Results show that the optimum coal fineness distribution is obtained at design primary airflow. Any reduction or increase of air flow rate results in undesirable coal fineness distribution.

Original languageEnglish
Article number012033
JournalJournal of Physics: Conference Series
Volume822
Issue number1
DOIs
Publication statusPublished - 11 Apr 2017
Event15th Asian Congress of Fluid Mechanics, ACFM 2016 - Kuching, Sarawak, Malaysia
Duration: 21 Nov 201623 Nov 2016

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boilers
coal
fineness
combustion efficiency
air flow
power plants
computational fluid dynamics
flow distribution
flow velocity
sampling

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

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title = "Preliminary investigation on the effects of primary airflow to coal particle distribution in coal-fired boilers",
abstract = "This paper presents an investigation on the effects of primary airflow to coal fineness in coal-fired boilers. In coal fired power plant, coal is pulverized in a pulverizer, and it is then transferred to boiler for combustion. Coal need to be ground to its desired size to obtain maximum combustion efficiency. Coarse coal particle size may lead to many performance problems such as formation of clinker. In this study, the effects of primary airflow to coal particles size and coal flow distribution were investigated by using isokinetic coal sampling and computational fluid dynamic (CFD) modelling. Four different primary airflows were tested and the effects to resulting coal fineness were recorded. Results show that the optimum coal fineness distribution is obtained at design primary airflow. Any reduction or increase of air flow rate results in undesirable coal fineness distribution.",
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Preliminary investigation on the effects of primary airflow to coal particle distribution in coal-fired boilers. / Noor, N. A.W.Mohd; Hassan, H.; Hashim, M. F.; Hasini, Hasril; Munisamy, K. M.

In: Journal of Physics: Conference Series, Vol. 822, No. 1, 012033, 11.04.2017.

Research output: Contribution to journalConference article

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AU - Hassan, H.

AU - Hashim, M. F.

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