2009•Hubei Electric PowerRequires access

Experimental Research on Combustion Characteristics of Coal Powder with Different Fineness

HU Ping-fan

Abstract

The combustion characteristics of Pingshan and Dayou coal sample with different fineness had been analyzed by using thermogravimetric analyzer and one-demension subsiding furnace.And then the combustion reaction model was established on the base of results of thermogravimetric experiment.Results showed that,both apparent activation energy and ignition temperature decreased with reducing coal partical size,thus effecting an improvement of combustion characteristics,but the change of cumbustion characteristics of Pingshan coal was slight during the fineness of 15%~20%.

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Key concepts: Fineness, Thermogravimetric analysis, Combustion, Coal, Autoignition temperature, Materials science, Ignition system, Coal combustion products