Performance and Emission Characteristics of a Four Stroke Spark Ignition Engine with Recirculation of Hot and Cold Exhaust Gases

  • Authors

    • Aritra Ganguly
    • Baidya Nath Murmu
    • Somnath Chakrabarti
    2018-09-22
    https://doi.org/10.14419/ijet.v7i4.5.20193
  • Brake fuel consumption, brake thermal efficiency, emission characteristics, exhaust gas recirculation, spark ignition engine

  • An experiment has been conducted on a four-stroke, four-cylinder spark ignition engine with and without recirculation of exhaust gas for different loads at a constant speed. Two cases were considered, the first in which 10% and later 20% of the exhaust gas was directly supplied to the intake manifold at a temperature of 820°C, while in the second case the same proportions of exhaust gas were cooled in a heat-exchanger to a temperature of 210°C before supply. Engine performance parameters like brake specific fuel consumption, brake thermal efficiency were evaluated under those conditions and compared with the same engine operating without recirculation. The corresponding emission characteristics of the engine were also measured using an exhaust gas analyzer which measured the amount of NOx, CO, CO2 and un-burnt HC. The performance and emissions characteristics of the engine obtained with hot and cold EGR were compared with reference to the same engine operating without EGR. The study revealed that the performance of the engine was better in terms of brake thermal efficiency and brake specific fuel consumption with cold EGR compared to hot EGR. However, the emissions of CO and HC were higher with cold EGR compared to that of hot EGR.

     

     


     

  • References

    1. [1] Society of Indian Automobile Manufacturers (SIAM), 2014, Industry Statistics, Domestic Sales Trend, Available online at 118.67.250.203//scripts/domestic-sales-trend.aspx. (Accessed on 28th October 2014).

      [2] Shojaeefard MH, Tahani M, Etghani MM & Akbari M (2013), Cooled EGR for a Turbo Charged SI Engine to Reduce Knocking and Fuel Consumption. International Journal of Automotive Engineering 3 (3), 474-481.

      [3] Ponnusamy P, Subramanian R & Nedunchezhian N (2012), An experimental study on the effect of EGR on performance and emission on four stroke SI engine with various catalytic coatings. Elixir Thermal Engineering 43, 6586-6589.

      [4] Su J, Xu M, Li T, Gao Y & Wang J (2014), Combined effects of cooled EGR and a higher geometric compression ratio on thermal efficiency improvement of a downsized boosted spark-ignition direct-injection engine.Energy Conversion and Management 78, 65–73.

      [5] Li T, Wu D & Xu M (2013), Thermodynamic analysis of EGR effects on the first and second law efficiencies of a boosted spark-ignited direct-injection gasoline engine. Energy Conversion and Management 70, 130–138.

      [6] Cha J, Kwon J, Cho Y & Park S (2001), The Effect of Exhaust Gas Recirculation (EGR) on Combustion Stability, Engine Performance and Exhaust Emissions in a Gasoline Engine. KSME International Journal 15, 1442 -1450.

      [7] Wei H, Zhu T, Shu G, Tan L & Wang Y (2012), Gasoline engine exhaust gas recirculation – A review. Applied Energy 99, 534–544.

      [8] Alger T, Gingrich J, Roberts C & Mangold B (2011), Cooled exhaust-gas recirculation for fuel economy and emissions improvement in gasoline engines. International Journal of Engine Research 12, 252-264.

      [9] Wei L, Ying W, Longbao Z & Ling S (2007), Study on improvement of fuel economy and reduction in emissions for stoichiometric gasoline engines. Applied Thermal Engineering 27, 2919–2923.

  • Downloads

  • How to Cite

    Ganguly, A., Nath Murmu, B., & Chakrabarti, S. (2018). Performance and Emission Characteristics of a Four Stroke Spark Ignition Engine with Recirculation of Hot and Cold Exhaust Gases. International Journal of Engineering & Technology, 7(4.5), 405-409. https://doi.org/10.14419/ijet.v7i4.5.20193