Numerical Study on Separation Performance of Cyclone Flue Used in Grate Waste Incinerator

Chen, Dongmei; Ran, Jingyu; Niu, Juntian; Yang, Zhongqing; Pu, Ge; Yang, Lin

doi:10.3390/pr7120866

Cited by 3 publications

(2 citation statements)

References 35 publications

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“…Therefore, many papers have been published, but their main matter of concern was about thermo-economic and environmental aspects. It means that a narrow gap exists regarding the full understanding of the combustion behavior inside incinerators [24,25]. More specifically, when pandemic dieses endanger human beings, the knowledge of incineration is of importance to deal with reducing the landfilling of the untreated medical wastes [26,27].…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of a Portable Incinerator: A Parametric Study

2020

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The application of incinerators for the municipal solid waste (MSW) is growing due to the ability of such instruments to produce energy and, more specifically, reduce waste volume. In this paper, a numerical simulation of the combustion process with the help of the computational fluid dynamics (CFD) inside a portable (mobile) incinerator has been proposed. Such work is done to investigate the most critical parameters for a reliable design of a domestic portable incinerator, which is suitable for the Iranian food and waste culture. An old design of a simple incinerator has been used to apply the natural gas (NG), one of the available cheap fossil fuels in Iran. After that, the waste height, place of the primary burner, and the flow rate of the cooling air inside the incinerator, as the main parameters of the design, are investigated. A validation is also performed for the mesh quality test and the occurrence of the chemical reactions near the burner of the incinerator. Results proved that the numerical results have less than 5% error compared to the previous experimental and numerical approaches. In addition, results show that by moving the primary burner into the secondary chamber of the incinerator, the temperature and the heating ability of the incinerator could be affected dramatically. Moreover, it has been found that by increasing the flow rate of the cooling air inside the incinerator to some extent, the combustion process is improved and, on the other hand, by introducing more cooling air, the evacuation of the hazardous gases from the exhaust is also improved.

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Section: Introductionmentioning

confidence: 99%

Numerical Investigation of a Portable Incinerator: A Parametric Study

2020

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“…Therefore, it is necessary to remove the pollutants at high temperatures. For the grate waste incinerator, Chen et al [27] proposes an adiabatic cyclone flue arranged at the exit of the first-stage furnace of the grate waste incinerator to pre-remove the fly ash at high temperatures, so as to alleviate the abrasion and corrosion of the tail heating surface. In this paper, the computational fluid dynamics (CFD) method is applied to study the performance of a cyclone flue under different structural parameters, and the comprehensive performance of the cyclone flue is evaluated by the technique for order preference by similarity to an ideal solution method.…”

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confidence: 99%