<![CDATA[The rapid industrialization of the poultry sector has led to significant environmental challenges, including nutrient pollution, odor generation, and greenhouse gas emissions from improper manure management. This study examines the potential of chicken manure waste gasification as a sustainable approach to renewable energy production, while simultaneously addressing waste disposal concerns. Computational Fluid Dynamics (CFD) simulations were conducted in ANSYS Fluent software version 2019 R2 under a student academic license provided by Telkom University, to investigate updraft and downdraft gasification processes under varying operational conditions, including airflow velocity and temperature. The simulation model demonstrated high accuracy in predicting syngas composition, with average errors of 0.1657% at 680°C and 0.0969% at 800°C, validating its reliability. The optimal gasifier dimensions are 30 cm diameter and 40 cm height) 16.5 cm diameter and 60 cm height for updraft and downdraft, respectively. These dimension are consistent with industry standards. The results indicates that airflow velocity significantly influenced syngas composition; moderate increases enhanced CO production in updraft configurations, while excessive airflow in downdraft setups reduced CO concentration due to overoxidation. Temperature optimization further improved syngas quality, with higher temperatures (800°C) increasing the concentrations of CO and H₂. The H₂/CO ratio remained stable under updraft conditions but exhibited more significant variability in downdraft setups due to differences in reaction kinetics and flow dynamics. These findings highlight the importance of precise control over operational parameters to optimize syngas yield and composition for energy applications. Future work should focus on refining simulation models, exploring diverse feedstocks, and enhancing process efficiency to advance sustainable waste-to-energy technologies.]]>
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