Downloads: 1
Research Paper | Thermal Engineering | Volume 15 Issue 7, July 2026 | Pages: 1961 - 1970 | India
CFD, Performance, and Emission Analysis of a Compression Ignition Engine Using Compressed Biogas (CBG) Produced from Municipal Organic Solid Waste
Abstract: Rapid urbanization has substantially increased municipal solid waste (MSW) generation, necessitating sustainable waste management and renewable energy solutions. Municipal organic solid waste (MOSW), constituting 60-70% of MSW, represents a valuable feedstock for biogas production through anaerobic digestion. This study investigates the production of compressed biogas (CBG) from biodegradable MOSW and its utilization in a compression ignition (CI) engine operating in dual-fuel mode. Vegetable wastes comprising brinjal, cabbage, cucumber, carrot, and potato were characterized using total solids, moisture content, total organic carbon, and volatile solids. Mechanical, hydrothermal, chemical, and biological pretreatments were evaluated to enhance biomethanation, followed by anaerobic co-digestion with garden leaf waste using NaOH-treated substrates and biogas slurry inoculum. Raw biogas was upgraded by removing moisture, CO2, and H2S using gas purification techniques and supplied to a single-cylinder CI engine with diesel as the pilot fuel. Computational Fluid Dynamics (CFD) was employed to optimize a Venturi gas mixer by analyzing different flow-pass configurations and gas inlet angles. The optimized four-pass mixer with a 45° gas inlet was fabricated and experimentally validated. The dual-fuel engine achieved up to 85% diesel substitution while maintaining satisfactory brake thermal efficiency, improved combustion characteristics, and reduced CO and CO? emissions. The proposed integrated approach demonstrates the feasibility of utilizing MOSW-derived CBG as a sustainable alternative fuel for compression ignition engines, promoting renewable energy generation, reduced fossil fuel dependence, lower emissions, and effective municipal waste management.
Keywords: Compressed Biogas (CBG), Municipal Organic Solid Waste (MOSW), Computational Fluid Dynamics (CFD), Engine Performance and Emissions
How to Cite?: S. Kumarappa, "CFD, Performance, and Emission Analysis of a Compression Ignition Engine Using Compressed Biogas (CBG) Produced from Municipal Organic Solid Waste", Volume 15 Issue 7, July 2026, International Journal of Science and Research (IJSR), Pages: 1961-1970, https://www.ijsr.net/getabstract.php?paperid=SR26721124154, DOI: https://dx.doi.org/10.21275/SR26721124154