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Effects of low pressure exhaust gas recirculation on regulated and unregulated gaseous emissions during NEDC in a light-duty diesel engine

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  • Bermúdez, Vicente
  • Lujan, José M.
  • Pla, Benjamín
  • Linares, Waldemar G.

Abstract

Regulated and unregulated gaseous emissions with high pressure and low pressure EGR (exhaust gas recirculation) system were tested in a 4-cylinder, light-duty diesel EURO IV engine typically used in European vehicles. Four different engine calibrations with the low pressure EGR system were studied. Regulated emissions of NOX, CO, HC and CO2 were measured for each configuration. Unburned Hydrocarbon Speciation, HCHO (formaldehyde), HCOOH (formic acid) and N2O (nitrous oxide) were also measured in order to determine the MIR (maximum incremental reactivity) of the gaseous emissions. Pollutants were measured without the DOC (diesel oxidation catalyst) to gather data about raw emissions. When the low pressure EGR system was used, decreases in NOX, N2O and fuel consumption were observed and significant increases HC, CO and unregulated emissions; this is the result of a lower intake manifold temperature, which provides a higher gas density which modifies the combustion process. The potential of tropospheric ozone production was higher in all cases when the low pressure EGR was used.

Suggested Citation

  • Bermúdez, Vicente & Lujan, José M. & Pla, Benjamín & Linares, Waldemar G., 2011. "Effects of low pressure exhaust gas recirculation on regulated and unregulated gaseous emissions during NEDC in a light-duty diesel engine," Energy, Elsevier, vol. 36(9), pages 5655-5665.
    • Handle: RePEc:eee:energy:v:36:y:2011:i:9:p:5655-5665
    DOI: 10.1016/j.energy.2011.06.061
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    References listed on IDEAS

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    Cited by:

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    5. Serrano, José Ramón & Arnau, Francisco José & Piqueras, Pedro & García-Afonso, Óscar, 2013. "Packed bed of spherical particles approach for pressure drop prediction in wall-flow DPFs (diesel particulate filters) under soot loading conditions," Energy, Elsevier, vol. 58(C), pages 644-654.
    6. Bermúdez, Vicente & Luján, José Manuel & Piqueras, Pedro & Campos, Daniel, 2014. "Pollutants emission and particle behavior in a pre-turbo aftertreatment light-duty diesel engine," Energy, Elsevier, vol. 66(C), pages 509-522.
    7. Singh, Paramvir & Varun, & Chauhan, S.R., 2016. "Carbonyl and aromatic hydrocarbon emissions from diesel engine exhaust using different feedstock: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 63(C), pages 269-291.
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    11. Khandal, S.V. & Banapurmath, N.R. & Gaitonde, V.N. & Hiremath, S.S., 2017. "Paradigm shift from mechanical direct injection diesel engines to advanced injection strategies of diesel homogeneous charge compression ignition (HCCI) engines- A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 70(C), pages 369-384.
    12. Martínez, Juan Daniel & Ramos, Ángel & Armas, Octavio & Murillo, Ramón & García, Tomás, 2014. "Potential for using a tire pyrolysis liquid-diesel fuel blend in a light duty engine under transient operation," Applied Energy, Elsevier, vol. 130(C), pages 437-446.
    13. Cornolti, L. & Onorati, A. & Cerri, T. & Montenegro, G. & Piscaglia, F., 2013. "1D simulation of a turbocharged Diesel engine with comparison of short and long EGR route solutions," Applied Energy, Elsevier, vol. 111(C), pages 1-15.
    14. Yunus khan, T.M. & Badruddin, Irfan Anjum & Badarudin, Ahmad & Banapurmath, N.R. & Salman Ahmed, N.J. & Quadir, G.A. & Al-Rashed, Abdullah A.A.A. & Khaleed, H.M.T. & Kamangar, Sarfaraz, 2015. "Effects of engine variables and heat transfer on the performance of biodiesel fueled IC engines," Renewable and Sustainable Energy Reviews, Elsevier, vol. 44(C), pages 682-691.
    15. Avola, Calogero & Copeland, Colin D. & Burke, Richard D. & Brace, Chris J., 2017. "Effect of inter-stage phenomena on the performance prediction of two-stage turbocharging systems," Energy, Elsevier, vol. 134(C), pages 743-756.
    16. Payri, F. & Broatch, A. & Serrano, J.R. & Piqueras, P., 2011. "Experimental–theoretical methodology for determination of inertial pressure drop distribution and pore structure properties in wall-flow diesel particulate filters (DPFs)," Energy, Elsevier, vol. 36(12), pages 6731-6744.
    17. Tauzia, Xavier & Maiboom, Alain, 2013. "Experimental study of an automotive Diesel engine efficiency when running under stoichiometric conditions," Applied Energy, Elsevier, vol. 105(C), pages 116-124.
    18. Zhang, Zhijin & Zhang, Haiyan & Wang, Tianyou & Jia, Ming, 2014. "Effects of tumble combined with EGR (exhaust gas recirculation) on the combustion and emissions in a spark ignition engine at part loads," Energy, Elsevier, vol. 65(C), pages 18-24.
    19. Bermúdez, Vicente & Luján, José Manuel & Climent, Héctor & Campos, Daniel, 2015. "Assessment of pollutants emission and aftertreatment efficiency in a GTDi engine including cooled LP-EGR system under different steady-state operating conditions," Applied Energy, Elsevier, vol. 158(C), pages 459-473.
    20. Tsuneyoshi, Koji & Yamamoto, Kazuhiro, 2012. "A study on the cell structure and the performances of wall-flow diesel particulate filter," Energy, Elsevier, vol. 48(1), pages 492-499.

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