Calcination Modelling for Cement Industry – Latest Development in FIRE

Mikulčić, Hrvoje and Von Berg, Eberhard and Vujanović, Milan and Priesching, Peter and Tatschl, Reinhard and Duić, Neven (2013) Calcination Modelling for Cement Industry – Latest Development in FIRE. = Calcination Modelling for Cement Industry – Latest Development in FIRE. In: AVL Advanced Simulation Technologies (AST) International User Conference 2013, 18.-20.06.2013., Graz, Austria.

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Cement industry is one of the leading producers of the greenhouse gases. There are two thermo-chemical processes in the process of cement production which contribute to these emissions. One is the combustion of the solid fuels and the other is the thermal decomposition of limestone, widely known as the calcination process. Because of the effect of global warming and particularly because carbon dioxide is one of the primary greenhouse gases, in-depth understanding of these processes is relevant for the development of effective cement production and reduction of pollutant emissions. Recently, researchers have improved the fuel consumption of the overall cement manufacturing process by dividing the calcination and the clinkering process into two separate furnaces. The calcination process is performed in a furnace called calciner, and the clinkering process is performed in a rotary kiln. A calciner is a furnace used prior to the rotary cement kiln, where the limestone, pulverized coal and rotary kiln exhaust gases are mixed. Since the usage of a cement calciner in the cement production process is a relatively new technology, calciners are still in the phase of research and development. The purpose of this paper is to present the first phase of the cement calciner's development, which is the CFD simulation of the cement calciner, with implemented mathematical models of the coal combustion and calcination process. From the results gained by these simulations, researchers will have an in-depth understanding of all relevant thermo-chemical reactions in a cement calciner. This in-depth understanding can then be used for the optimization of the calciner's geometry, to have a more efficient production, to lower the pollutant formation and subsequently reduce the greenhouse gases emission.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): CFD, Calciner, Calcination Process, Coal Combustion, Cement Production
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 500 Department of Energy, Power Engineering and Environment > 510 Power Engineering and Energy Management Chair
Indexed in Web of Science: No
Indexed in Current Contents: No
Date Deposited: 06 Apr 2016 10:46
Last Modified: 18 Apr 2016 14:16

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