Aam A Jumhur, Sirojuddin, Syefty M Sukma, Yermia B Garendi
The background of this study lies in the growing demand for sustainable waste management solutions, driven by global environmental concerns and evolving regulations that promote green technologies. Pyrolysis incinerators have emerged as a promising solution, capable of converting waste into useful by-products while minimizing harmful emissions. These systems require a structurally robust primary chamber capable of withstanding high thermal and mechanical loads. However, conventional chamber designs often fail under such extreme conditions, highlighting the need for more rigorous structural analysis to ensure durability, efficiency, and alignment with sustainability goals. This study employs Finite Element Analysis (FEA) to evaluate the structural performance of a pyrolysis incinerator's primary chamber, specifically designed to support green technology applications. The chamber consists of a 50 mm refractory concrete lining and a 3 mm SS400 steel casing, selected for their combined thermal insulation and mechanical strength. A three-dimensional CAD model was developed and simulated using ANSYS Mechanical 2021R1, incorporating internal pressure loading of 0.5 MPa and fixed boundary conditions representative of actual pyrolysis environments. A mesh sensitivity analysis was conducted to ensure numerical accuracy and model reliability. The results indicate that the maximum von Mises stress is 7.357 × 10-4 MPa, significantly below the yield strength of SS400 steel, resulting in a safety factor exceeding 300. The maximum deformation observed is 3.85 mm, equivalent to 0.19% of the chamber diameter, indicating minimal geometric distortion during operation. Mesh convergence was confirmed through strain energy error indices, validating the numerical stability of the simulation and its reliability for design refinement. The structural integrity of the chamber is validated under pyrolysis operating conditions, supporting its application in green environmental technologies for sustainable waste-to-energy systems. The low levels of stress and deformation reflect the robustness and efficiency of the design, with potential for material optimization to enhance resource efficiency. This study contributes to the development of eco-friendly incineration systems in alignment with global efforts to promote circular economy principles. Further research, including coupled thermal-mechanical analysis and experimental validation, is recommended to strengthen these findings and support broader implementation in environmental engineering practice. © Published under licence by IOP Publishing Ltd.
Department of Mechanical Engineering Education, Universitas Negeri Jakarta Jl. Rawamangun Muka, Jakarta, 13220, Indonesia
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