Abstract
Heat generation occurs in municipal solid waste (MSW) landfills due to degradation of the organic fraction of the MSW, which results in elevated temperature. There is a great influence on the temperature distribution from leachate migration in landfills. Therefore, it is beneficial to the operation and management of the landfill to study the thermal evolution in a landfill under the effect of heat generation and heat convection. In this paper, the heat convection-diffusion model of landfill is established, and the analytical solution of the equation is obtained. The solution is used to analyze the variation of temperature under the effect of heat generation and heat convection in a landfill. The existing theory is verified by the measured data, and the influencing factors are analyzed. The calculation results show that convection in the landfill and heat generation parameters all have great influence on the temperature of the landfill. When the convection velocity becomes larger, the influence of depth of the atmospheric temperature increases. The temperature of the landfill increases with the increase of peak heat generation rate factor A.
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Acknowledgments
The current study was financially supported by the key fund of China Natural Science Foundation (41530637) and the general fund of China Natural Science Foundation (41372268).
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Lei, H., Shi, J., Wu, X. (2019). Temperature Variation Under the Consideration of Convection and Heat Generation in Landfills. In: Zhan, L., Chen, Y., Bouazza, A. (eds) Proceedings of the 8th International Congress on Environmental Geotechnics Volume 2. ICEG 2018. Environmental Science and Engineering(). Springer, Singapore. https://doi.org/10.1007/978-981-13-2224-2_17
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DOI: https://doi.org/10.1007/978-981-13-2224-2_17
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