Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Combustion and Exhaust Emission Characteristics by the Change of Intake Air Temperature in a Single Cylinder Diesel Engine

단기통 디젤엔진에서 흡기온도변화에 따른 연소 및 배기특성

  • Shin, Dalho (Department of Mechanical Engineering, Graduate School of Chonnam National University) ;
  • Park, Suhan (School of Mechanical Engineering, Chonnam National University)
  • 신달호 (전남대학교 기계공학과) ;
  • 박수한 (전남대학교 기계공학부)
  • Received : 2016.12.12
  • Accepted : 2017.03.17
  • Published : 2017.05.01
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Abstract

Intake air conditions, such as air temperature, pressure, and humidity, are very important parameters that influence engine performance including combustion and emissions characteristics. The purpose of this study is to investigate the effects of intake air temperature on combustion and exhaust emissions characteristics in a single cylinder diesel engine. In this experiment, an air cooler and a heater were installed on the intake air line and a gas flow controller was installed to maintain the flow rate. It was found that intake air temperature induced the evaporation characteristics of the fuel, and it affects the maximum in-cylinder pressure, IMEP(indicated mean effective pressure), and fuel consumption. As the temperature of intake air decreases, the fuel evaporation characteristics deteriorate even as the fuel temperature has reached the auto-ignition temperature, so that ignition delay is prolonged and the maximum pressure of cylinder is also reduced. Based on the increase in intake air temperature, nitrogen oxides(NOx) increased. In addition, the carbon monoxide(CO) and unburned hydrocarbons(UHC) increased due to incomplete fuel combustion at low intake air temperatures.

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References

  1. J. E. Dec, "Advanced Compression-ignition Engines Understanding the In-cylinder Processes," Proc. of the Combustion Institute, Vol.32, Issue 2, pp.2727-2742, 2009. https://doi.org/10.1016/j.proci.2008.08.008
  2. K. Kim and C. Bae, "Operating Characteristics of Dual-fuel Combustion with DME and Gasoline in a Compression Ignition Engine," Transactions of KSAE, Vol.22, No.1, pp.157-164, 2014.
  3. J. B. Hewood, International Combustion Engine Fundamentals, McGraw-hills, New York, pp.25-37, 1988.
  4. Y. Kong, T. Kozakiewicz, R. Johnson, C. Huffmeyer, J. Huckaby, J. Abel, J. Baurly and K. Duffield, "Active DPF Regeneration for 2007 Diesel Engines," SAE 2005-01-3509, 2005.
  5. P. Tennison, C. Lambert and M. Levin, "NOx Control Development with Urea SCR on a Diesel Passenger Car," SAE 2004-01-1291, 2004.
  6. D. Reitz and G. Duraisamy, "Review of High Efficiency and Clean Reactivity Controlled Compression Ignition (RCCI) Combustion in Internal Combustion Engines," Progress in Energy and Combustion Science, Vol.46, No.2, pp.12-71, 2015. https://doi.org/10.1016/j.pecs.2014.05.003
  7. M. Iida, T. Aroonsrisopon, M. Hayashi, D. Foster and J. Martin, "The Effect of Intake Air Temperature Compression Ratio and Coolant Temperature on the Start of Heat Release in an HCCI Engine," SAE 2001-01-1880/4278, 2001.
  8. K. Senthil Kumar and R. Raj, "Effect of Fuel Injection Timing and Elevated Intake Air Temperature on the Combustion and Emission Characteristics od Dual Fuel Operated Diesel Engine," Procedia Engineering, Vol.64, No.129, pp.1191-1198, 2013. https://doi.org/10.1016/j.proeng.2013.09.198
  9. J. H. Son, J. Y. Ko, D. Y. Jin, C. L. Myung and S. W. Park, "Real-time NOx and Particle Emissions Characteristics from a Light-duty Diesel Passenger Vehicle under Low Temperature Driving Conditions," KSAE Annual Conference Proceedings, p.281, 2014.
  10. H. Kim, H. Lee and C. Oh "Study on the Emission Characteristics of Passenger Diesel Engine in according to Coolant and Intercooler Temperature," KSAE Spring Confernece Proceedings, pp.195-199, 2013.
  11. A. Ko, W. Jang, D. Jin, S. Baek, C. Myung and S. Park. "The Experimental Study of Environmental Temperature on Combustion and Exhaust Gas Characteristics of Light-duty Diesel Engine," Kosco Symposium, pp.35-36, 2013.
  12. C. Cinar, A. Uyumaz, H. Solmaz, F. Sahin and E. Yilmaz, "Effects of Intake Air Temperature on Combustion Characteristics of a HCCI Engine Fuel with the Blends of 20% n-heptane and 80% Isooctane Fuels," Fuel Processing Technology, Vol.30, No.34, pp.275-281, 2015.
  13. C. Woo, S. Kook and R. Hawkes, "Effect of intake Air Temperature and Common-rail Pressure on Ethanol Combustion in a Single-cylinder Light-duty Diesel Engine," Fuel, Vol.180, pp.9-19, 2016. https://doi.org/10.1016/j.fuel.2016.04.005
  14. S. Han, J. Kim and C. Bae, "Effect of Air-fuel Mixing Quality on Characteristics of Conventional and Low Temperature Diesel Dngine," Applied Energy, Vo1.19, No.43, pp.454-466, 2014.
  15. Y. Shim, G. Choi and D. Kim, "Experimental and Numerical Study on Behavior of Impinging Spray According to Ambient Temperature," Transactions of KSAE, Vol.15, No.4, pp.124-131, 2007.
  16. W. Cho, Y. Park, C. Bae, J. Yu and Y. Kim "Influence of Ultra-high Injection Pressure and Nozzle Hole Diameter on Diesel Flow and Spray Characteristics under Evaporating Condition," ILASS-Korea, Vol.20, No.1, pp.43-52, 2015. https://doi.org/10.15435/JILASSKR.2015.20.1.43