THERMAL SCIENCE

International Scientific Journal

Milić D. Erić

,

Dejan B. Cvetinović

,

Predrag Lj Stefanović

,

Predrag Radovanović

,

Nikola V. Živković

INVESTIGATION OF PRESSURE PULSATIONS IN THE FURNACE AND FLUE GAS TRACT OF THE PULVERIZED COAL COMBUSTION UTILITY BOILER

ABSTRACT
The paper presents new experimental method developed and new measuring system developed and installed into flame-gas tract of utility boiler. Investigations have been performed at the steam boiler of unit 2 at TPP 'Ptolemais', Ptolemais, Greece, which suffered from very unstable combustion and great pressure oscillations. Experimental method, based on high-speed acquisition system, was developed and used for detection of pressure oscillations and determination of the origin of boiler unstable operation. Signals were obtained from piezoelectric pressure sensors located along the flame-gas tract of the steam boiler and time and frequency domain analysis were used for post processing of collected data. Investigations of the pressure oscillations in boiler gas tract have contributed to reveal origin of the boiler unstable operation, and have been of the great help in establishing proper boiler operation.
KEYWORDS
utility boiler, pulsatile pulverized coal combustion, pressure pulsations, time and frequency domain analyses
PAPER SUBMITTED: 2009-09-04
PAPER REVISED: 2009-09-21
PAPER ACCEPTED: 2009-09-21
DOI REFERENCE: https://doi.org/10.2298/TSCI1001261E
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2010, VOLUME 14, ISSUE Issue 1, PAGES [261 - 270]
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Investigation of pressure pulsations in the furnace and flue gas tract of the pulverized coal combustion utility boiler

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence