Author(s)

N.P. Sargianos & G. Bergeles

Abstract

A computational approach to the combustion of pulverized Greek lignite in a power station combustor N.P. Sargianos & G. Bergeles National Technical University of Athens, Mechanical Engineering Department, Laboratory , /If/terns, Greece ABSTRACT The paper describes the fundamentals of a developed numerical algorithm for calculating pulverized coal combustion in three- dimensional furnaces, and presents predictions of the main aerodynamic and combustion characteristics in a newly- constructed 300MW utility boiler of the Greek Public Power Corporation (P.P.C.), featuring tangential firing and operating on pulverized Greek lignite. The study explores numerically and points out the effects on the overall performance of the boiler of: a) increasing the size and b) reducing the moisture of the lignite particles fed into the boiler. INTRODUCTION The utilisation of coal as a source of energy is of major import

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