Performance Emission and Combustion Characteristics of Ethanol Hydrogen Blends at MBT Spark Timing on Multi-cylinder SI Engine

Abstract

Alternative fuels are the need of the current situation as conventional fuels are depleting very quickly and causing increase in amounts of pollution. Hydrogen as a clean fuel with Higher Calorific Value plays important role in increasing combustion characteristics. When compared with the performance of ethanol as a fuel, ethanolhydrogen blends have demonstrated a 5% increase in power production, 15% reduction in hydrocarbon emissions, and 12% reduction in carbon dioxide emissions. All tests are conducted at speed of 2500, 3000, 3500, 4000, and 4500 rpm with the Wide-Open-Throttle (WOT) condition. CO & HC emissions are reduced using ethanol, whereas hydrogen addition enhanced the decreased power output, higher brake-specific fuel consumption and in cylinder pressure. Keywords: Emission, combustion, ethanol, hydrogen, SI engine, alternate fuels, conventional fuels, renewable energy sources, MBT spark timing, NOx emissions, nitrogen, Maximum Brake Torque