Structural Integrity Assessment of a Pyrolysis Incinerator Chamber Using FEM in Support of Green Environmental Technologies
Aam Amaningsih Jumhur, Sirojuddin, Syefty Muthiara Sukma, Yermia Bima Garendi

Universitas Negeri Jakarta

Abstract

The background of this study is the increasing demand for sustainable waste management solutions, which has accelerated the development of pyrolysis incinerators as part of green environmental technologies. These systems require a structurally robust primary chamber capable of withstanding high thermal and mechanical loads. Conventional designs often fail under such conditions, necessitating further analysis to ensure durability and safety. This study employs Finite Element Analysis or FEA to evaluate the structural performance of the primary chamber of a pyrolysis incinerator. The chamber consists of a 50 mm refractory concrete lining and a 3 mm SS400 steel casing. A 3D CAD model was developed and simulated using ANSYS Mechanical 2021R1, incorporating internal pressure loading or 0.5 MPa and fixed boundary conditions. Mesh sensitivity analysis was conducted to ensure numerical accuracy. The results show that the maximum von Mises stress is 7.357 times 10 minus 4 MPa, which is significantly below the yield strength of SS400, yielding a safety factor exceeding 300. The maximum deformation recorded is 3.85 mm, equivalent to 0.19 percent of the chamber diameter. Mesh convergence was validated through the strain energy error index, confirming the stability of the solution. In conclusion, the structural integrity of the chamber is validated under pyrolysis operating conditions. The low stress and deformation levels indicate the robustness of the design, with potential for optimization in material usage for eco efficient applications. This supports its implementation in green environmental technologies aimed at promoting sustainable and resilient waste to energy systems. Further studies are recommended, including coupled thermal mechanical analysis and experimental validation.

Keywords: Pyrolysis, Finite Element Method, Structural Analysis, Incinerator, Green Technologies, Thermal Stress

Topic: Energy and Environmental Physics