ANALISIS KEKUATAN RANGKA DAN SARINGAN ABU PADA INSINERATOR SKALA MIKRO MENGGUNAKAN METODE FINITE ELEMENT ANALYSIS

The accumulation of waste in Cisolok District is an environmental problem that requires an effective solution. Incinerators are used to reduce the volume of waste through combustion, so a strong structure is needed to withstand operational loads. This research analyzes the structural strength of the incinerator frame and ash filter by evaluating Von Mises stress, deformation, thermal strain, and Safety Factor values using the Finite Element Analysis (FEA) method with Ansys Workbench 2024 R1. The material used is ASTM A36 steel with an L profile (50 mm × 50 mm × 5 mm) for the frame and a 12 mm diameter rod for the ash filter. A load of 2,456 N was applied to the frame and 185.4 N to the ash filter. The simulation results showed the maximum Von Mises stress on the frame was 31.543 MPa and the maximum deformation was 0.0510 mm, while on the ash sieve, the maximum Von Mises stress was 7.3306 MPa with a maximum deformation of 0.0081343 mm. Safety Factor values range from 7.87 to 15, indicating the structure is safe against operating loads. Thermal strain analysis showed that neither the frame nor the ash filter underwent dimensional changes due to the operating temperature of 34.1˚C for the frame and 600˚C for the ash filter. The maximum load capacity that the ash screen can withstand is 6,277.6 N, while the frame reaches 19,327 N. Thus, the incinerator design is safe and stable under operational conditions.
Keywords: Incinerator, Structure, Finite Element Analysis.