alexa Comparative Studies on Performance Parameters and Exhaust Emissions from Four Stroke Copper Coated Spark Ignition Engine with Alcohol Blended Gasoline with Catalytic Converter
ISSN ONLINE(2319-8753)PRINT(2347-6710)

International Journal of Innovative Research in Science, Engineering and Technology
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Research Article

Comparative Studies on Performance Parameters and Exhaust Emissions from Four Stroke Copper Coated Spark Ignition Engine with Alcohol Blended Gasoline with Catalytic Converter

K. Kishor1 M.V.S. Murali Krishna2 and P.V.K. Murthy3
  1. Assistant Professor, Department of Mechanical Engineering , Chaitanya Bharathi Institute of Technology, Gandipet, Hyderabad- 500 075, Andhra Pradesh, India
  2. Professor, Department of Mechanical Engineering, Chaitanya Bharathi Institute of Technology, Gandipet, Hyderabad- 500 075, Andhra Pradesh, India
  3. Principal, Jaya Prakash Narayan Educational Society Group of Institutions, Mahabubnagar-509001, Andhra Pradesh, India
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Abstract

Experiments were conducted to evaluate the performance and control the exhaust emissions from four stroke, variable speed, variable compression ratio, single cylinder, spark ignition (SI) engine, with alcohol blended gasoline (80% gasoline, 10% methanol, 10% ethanol by volume) having copper coated combustion chamber [CCCC, copper-(thickness, 300 μ) coated on piston crown, inner side of cylinder head] provided with catalytic converter with sponge iron as catalyst and compared with conventional SI engine (CE) with pure gasoline operation. Performance parameters brake thermal efficiency, exhaust gas temperature and volumetric efficiency) and exhaust emissions (carbon monoxide (CO) and un-burnt hydro carbons (UBHC)) were determined with different values of brake mean effective pressure of the engine. A microprocessor-based analyzer was used for the measurement of CO/UBHC in the exhaust of the engine. Copper coated combustion chamber with alcohol blended gasoline considerably improved the performance and reduced pollutants in comparison with CE with pure gasoline operation. Catalytic converter with air injection significantly reduced pollutants with test fuels on both configurations of the combustion chamber. The catalyst, sponge reduced the pollutants effectively with both test fuels in both versions of the combustion chamber.

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