Optimisation of coal fineness in pulverised-fuel boilers

Marek Pronobis, Kazimierz Mroczek, Mateusz Tymoszuk, Szymon Ciukaj, Robert Wejkowski, Tomasz Janda and Katarzyna Jagodzińska

Energy, 2017, vol. 139, issue C, 655-666

Abstract: A method for choosing the optimum fineness of coal in pulverised-fuel boilers is presented. This method is based on economic criteria and takes into account variations of the power unit load as well as the durability and the output of pulverisers. Calculations are performed for short periods of time (e.g. 1 h), provided that it is possible to change the fineness of the coal by controlling the angle of the classifier guide vanes. Therefore, the optimum value, adapted to the current parameters, may be easily set. A program was created in MS Excel to perform the optimization calculations. It enables making decisions concerning the modernisation of grinding systems and their proper operation when changing the fuel characteristics as well as the load and costs of power unit operation.

Keywords: Boiler; Mill-furnace system; Grain size; Optimization (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:139:y:2017:i:c:p:655-666

DOI: 10.1016/j.energy.2017.07.057

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