Effects on the Performance and Emission Characteristics of a Compression Ignition Engine along with Convergent Swirler in the Intake Port of the Engine
SAE-PP-00294
9/7/2022
- Content
- In-cylinder turbulence is one of the most critical parameters for a compression ignition (CI) engine. High in-cylinder turbulence results in faster combustion and better performance. The turbulence inside the combustion chamber of a compression ignition engine can be developed in several ways, viz., modifying the piston bowl geometry, varying the inlet port orientation, etc. Setting up a swirler inside the intake port helps create more intake-induced turbulence inside the combustion chamber. This work focuses on the effect of a convergent swirler at the intake manifold on the combustion, performance, and emission characteristics of a TAFE 3-cylinder compression ignition engine. The study is performed with varying speeds, viz, 1200 RPM, 1400 RPM, 1600 RPM, 1800 RPM, and 2000 RPM. The parameters studied numerically are the variation of characteristic and tangential velocity of airflow, swirl number, and turbulent kinetic energy (TKE) with the crank speed at the swirler outlet. After that, all these effects are studied experimentally with the exhaust gas temperature, brake mean effective pressure (BMEP), brake thermal efficiency (BTE), nitrogen oxide (NOx) emissions, and soot emissions. At 1400 RPM, because of the convergent swirler, the exhaust gas temperature increased about 11 K, BTE increased by 2.3%, and soot emissions decreased approximately 9.1%. However, the BMEP almost remained the same, along with a 15% compensation of NOx.
- Citation
- Bhaduri, S., M., S., and R., R., "Effects on the Performance and Emission Characteristics of a Compression Ignition Engine along with Convergent Swirler in the Intake Port of the Engine," SAE MobilityRxiv™ Preprint, submitted September 7, 2022, https://doi.org/10.47953/SAE-PP-00294.