Evaluation of Combustion Dynamics and Emission Control in Turbocharged DI Engines Using Ethanol-Gasoline Blends

EasyChair Preprint 15356

Abstract

This paper presents an experimental investigation into the combustion dynamics, performance, and emission control of ethanol-gasoline blends in a turbocharged direct injection spark ignition (DISI) engine. Various blends (E10, E20, and E30) were tested to assess their effects on key combustion parameters, including ignition timing, Rate of Pressure Rise (RoPR), Heat release Rate (HRR) and Combustion Duration. The study also evaluated performance metrics such as Brake Power (BP), Brake-Specific Fuel Consumption (BSFC), and Thermal Efficiency (TE). Emission characteristics, including CO, HC, NOx, and CO₂ emissions, were measured and compared across the different blends. The results indicate that ethanol-gasoline blends significantly influence combustion behavior, enhancing ignition timing (15-21.43%), BP (23-30%), BSFC (25-27.03%), TE (7.5-12%) and RoPR (8.5-15%). But the HRR Combustion Duration decreases at (10.3-26.3%) and (13-16.6%), respectively. All emission analyses revealed significant reductions in CO (12-20%), CO2 (2.5-9.2%), NOx (18-29%) and HC (3.3-12%. Overall, ethanol-gasoline blends improve engine performance and contribute to emission reduction, suggesting their viability as alternative fuels for turbocharged SI engines. Further research is recommended to optimize engine settings for various ethanol concentrations and to assess long-term effects.

Keyphrases: Direct Injection., Emissions, Ethanol Gasoline, Performance, keywords

@booklet{EasyChair:15356,
  author    = {Mohd Rosdi Salleh and Rizalman Mamat and Najafi Golam Hassan},
  title     = {Evaluation of Combustion Dynamics and Emission Control in Turbocharged DI Engines Using Ethanol-Gasoline Blends},
  howpublished = {EasyChair Preprint 15356},
  year      = {EasyChair, 2024}}