Computer simulation of waste combustion in a moving grate furnace as a tool for process optimization and operator training
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چکیده
G. Brem and L.B.M. van Kessel TNO-MEP P.O.Box 342 7300 AH Apeldoom
منابع مشابه
Reversed Combustion of Waste in a Grate Furnace – an Experimental Study
Most widely used concept for municipal solid waste (MSW) incineration is combustion on a moving grate with energy recovery. In MSW incinerators fresh waste stacked on a grate enters the combustion chamber, heats up by radiation from the flame above the layer and ignition occurs. Ignition front propagates downwards producing heat for drying and devolatilisation of the fresh waste below until it ...
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The incineration of municipal waste under existing legislative and operational boundary conditions is a very complex process. An optimisation in the emissions is possible by a splitting up of the combustion air into primary and secondary air. The mixing of the secondary air into the furnace is the most important feature in order to reach uniform oxygen, temperature and velocity distributions. T...
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Computational fluid dynamic (CFD) analysis of the thermal flow in the combustion chamber of a solid waste incinerator provides crucial insight into the incinerator's performance. However, the interrelation of the gas flow with the burning waste has not been adequately treated in many CFD models. A strategy for a combined simulation of the waste combustion and the gas flow in the furnace is intr...
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Mixing of the highly non-homogeneous municipal solid wastes (MSW) on the traveling grate of mass-burn combustion chambers assists the combustion process in waste-to-energy (WTE) facilities. A matrix-based Markov chain model was developed to simulate particle flow and mixing as the solid waste particles travel over a reverse acting Martin grate. The model was used to project the pathway of a sol...
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The average amount of municipal solid waste (MSW) generated in Malaysia is 0.5–0.8 kg/person/day and has increased to 1.7 kg/person/day in major cities. As rapid development continues, so does the amount of MSW and thus a lack of space for new landfills. Thus a better way of disposing MSW would be to incinerate. The basic design requirements of high-performance incinerators are the 3Ts (time, t...
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