Elucidating the characteristic energy balance evolution in applied smouldering systems

Rashwan, Tarek L.; Zanoni, Marco A.B.; Wang, Jiahao; Torero, José L. and Gerhard, Jason I. (2023). Elucidating the characteristic energy balance evolution in applied smouldering systems. Energy, 273, article no. 127245.

DOI: https://doi.org/10.1016/j.energy.2023.127245

Abstract

Applied smouldering systems are emerging to solve a range of environmental challenges, such as remediation, sludge treatment, off-grid sanitation, and resource recovery. In many cases, these systems use smouldering to drive an efficient waste-to-energy process. While engineers and researchers are making strides in developing these systems, the characteristic energy balance trends have not yet been well-defined. This study addresses this topic and presents a detailed framework to uncover the characteristic energy balance evolution in applied smouldering systems. This work provides new experimental results; a new, validated analytical description of the cooling zone temperature profile at steady-state conditions; insight into the characteristic temperature changes over time; a re-analysis of published data; and a robust framework to contextualize the global energy balance results from applied smouldering systems. Altogether, this study is aimed to support researchers and engineers to better understand smouldering system performance to further the development of environmentally beneficial applications.

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