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Thermodynamic diagnosis of diesel and biodiesel combustion processes during load-increase transient sequences

Author

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  • Armas, Octavio
  • Ballesteros, Rosario
  • Cardenas, María Dolores

Abstract

The study of the diesel combustion process is a current topic by the need of thermal efficiency improving and the reduction of pollutant emissions. This circumstance has forced researchers and manufacturers to optimize this process not only in steady state operating conditions but also during transient operation. A zero dimensional thermodynamic diagnostic model, with three species (air, fuel evaporated and burned products), has been used to characterize the combustion process during load increase transient sequences at two different engine speed. In both sequences, three variables were studied: the valve position of the exhaust gas recirculation (EGR), the elapsed time of the transition process and the type of fuel. Three biodiesel fuels were tested pure: rapeseed, soybean and sunflower which were compared to a commercial diesel fuel used as reference. Results are presented comparing the in-cylinder average maximum pressure and temperature, and the phasing of the combustion process based on the calculation of heat release. This study has allowed the detection of the effect of the tested engine parameters and the biodiesel fuels used on the in-cylinder thermodynamic conditions during the load transient sequences studied.

Suggested Citation

  • Armas, Octavio & Ballesteros, Rosario & Cardenas, María Dolores, 2012. "Thermodynamic diagnosis of diesel and biodiesel combustion processes during load-increase transient sequences," Applied Energy, Elsevier, vol. 97(C), pages 558-568.
    • Handle: RePEc:eee:appene:v:97:y:2012:i:c:p:558-568
    DOI: 10.1016/j.apenergy.2011.12.058
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    Cited by:

    1. Fangyuan Zhang & Zhongshu Wang & Jing Tian & Linlin Li & Kaibo Yu & Kunyi He, 2020. "Effect of EGR and Fuel Injection Strategies on the Heavy-Duty Diesel Engine Emission Performance under Transient Operation," Energies, MDPI, vol. 13(3), pages 1-17, January.
    2. Mat Yasin, M.H. & Yusaf, Talal & Mamat, R. & Fitri Yusop, A., 2014. "Characterization of a diesel engine operating with a small proportion of methanol as a fuel additive in biodiesel blend," Applied Energy, Elsevier, vol. 114(C), pages 865-873.
    3. Hountalas, D.T. & Papagiannakis, R.G. & Zovanos, G. & Antonopoulos, A., 2014. "Comparative evaluation of various methodologies to account for the effect of load variation during cylinder pressure measurement of large scale two-stroke diesel engines," Applied Energy, Elsevier, vol. 113(C), pages 1027-1042.
    4. 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.
    5. Han, Yongqiang & Zhang, Longping & Liu, Zhongchang & Tian, Jing, 2016. "Investigation of transient deterioration mechanism and improved method for turbocharged diesel engine," Energy, Elsevier, vol. 116(P1), pages 250-264.
    6. Soriano, J.A. & García-Contreras, R. & Gómez, A. & Mata, C., 2019. "Comparative study of the effect of a new renewable paraffinic fuel on the combustion process of a light-duty diesel engine," Energy, Elsevier, vol. 189(C).

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