IMAGE ANALYSIS ALGORITHMS IN COMPUTER SYSTEM OF DETERMINATION OF ASH FUSIBILITY

Robert Ambroziak, Marek Orzylowski

Abstract

The article presents th e computer system to determine fusibility of ash obtained from solid mineral fuels, which is a vital parameter for proper exploitation of power and heating plants boilers. The system is based on analysis of the image of a heated ash sample. In the beginning, we describe the way in which the ash specimen is prepared, as well as its thermal processing, and also give criteria for specifying the characteristic temperature points of phase transitions according to the ISO 1171 standard. Later, we present the scheme of the apparatus for automated determination of ash fusibility and the image acquisition method. Finally, we describe the chosen criteria of automated determination of characteristic points on the basis of selected sample image geometry coefficients. The ultimate determination of the values of those points on the basis of many calculated coeffici ents, fuzzy logic is applied.

Keywords

image processing, contour analysis, fuzzy logic, fusibility of ash

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PWC-2003-TC12-017.pdf

DOI

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IMEKO TC

TC12 - Temperature and Thermal Measurements

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