Abstract
Altitude has a significant effect on combustion of heavy-duty diesel engines, especially during cold start. An experimental study on a heavy-duty diesel engine operating at different altitudes was conducted. Tests were based on a direct injection (DI) turbocharged diesel engine with intake and exhaust pressure controlled by the plateau simulation test system to stimulate altitude conditions including 0 m, 1000 m, 2000 m, 3000 m and 4000 m. Results indicated that the compression and expansion resistance moment reduced and the speed increased during the cranking period. The peak pressure of several cycles was increased during the start-up period; however, the expansion pressure dropped more and the indicated mean effective pressure (IMEP) reduced as the altitude rose. While at an altitude of over 2000 m, the peak pressure fluctuated obviously during the start-up period. The higher the altitude was, the more the fluctuation amplitude and cycle number increased and combustion instability enhanced, which resulted the start-up period time increasing at high altitude. When the altitude rose, the cycle-to-cycle variation of the peak pressure and speed fluctuation increased during the idle, the ignition and CA50 were delayed and the combustion duration was shortened. The effect of altitude on combustion characteristics of the diesel engine was more significant during the start-up period than during its idle period.
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Abbreviations
- ATDC:
-
after top dead centre
- CA:
-
crank angle
- CA5:
-
crank angle position at 5 % of the cumulative heat release rate
- CA50:
-
crank angle position at 50 % of the cumulative heat release rate
- COV:
-
coefficient of cyclic variation
- DI:
-
direct injection
- IMEP:
-
indicated mean effective pressure
References
Benjumea, P., Agudelo, J. and Agudelo, A. (2009). Effect of altitude and palm oil biodiesel fuelling on the performance and combustion characteristics of a HSDI diesel engine. Fuel 88, 4, 725–731.
Bishop, G. A., Morris, J. A., Stedman, D. H., Cohen, L. H., Countess, R. J., Countess, S. J., Maly, P. and Scherer, S. (2001). The effects of altitude on heavy-duty diesel truck on-road emissions. Environmental Science and Technology 35, 8, 1574–1578.
Broatch, A., Ruiz, S., Margot, X. and Gil, A. (2010). Methodology to estimate the threshold in-cylinder temperature for self-ignition of fuel during cold start of diesel engines. Energy 35, 5, 2251–2260.
Clenci, A., Niculescu, R., Danlos, A., Iorga-Siman, V. and Trica, A. (2016). Impact of biodiesel blends and Di-Ethyl-Ether on the cold starting performance of a compression ignition engine. Energies 9, 4, 284.
He, C., Ge, Y., Ma, C., Tan, J., Liu, Z., Wang, C., Yu, L. and Ding, Y. (2011). Emission characteristics of a heavyduty diesel engine at simulated high altitudes. Science of the Total Encironment 409, 17, 3138–3143.
Henein, N. A., Zahdeh, A. R., Yassine, M. K. and Bryzik, W. (1992). Diesel engine cold starting: Combustion instability. SAE Paper No. 920005.
Jin, R., Zhang, J., Hu, L. and Zhuge, W. (2011). Study on varying altitude self-adaptive turbocharging system for diesel engine. Chinese Internal Combustion Engine Engineering 32, 4, 27–31.
Lee, J. H. and Lee, Y. Z. (2015). Development of a diesel cold performance evaluation method by use of design of experiment. Int. J. Automotive Technology 16, 5, 807–812.
Liu, H. and Zhu, J. (2012). Performance of direct injection turbocharged diesel engine at different altitudes. J. Qinghai University 30, 3, 1006–8996.
Liu, R., Zhou, G., Li, J., Dong, S., Zhou, P. and Ge, F. (2012). Calibration of common-rail diesel engine at high altitudes under full load operating conditions. J. Combustion Science and Technology 18, 3, 199–205.
Liu, X., Wei, M., Ma, C. and Shi, X. (2010). Simulation on one-stage and two-stage turbocharged diesel engines at different altitudes. Trans. Csice 28, 5, 447–452.
Nazarov, A., Ralston, R. E. and Reynolds, D. J. (2007). Method and System for Controlling Fuel Injection Timing to Maintain Desired Peak Cylinder Pressure for High Altitude Operation. U.S. Patent 7.246.605. 2007-7-24.
Park, J. K. (2007). Simulation of starting process of diesel engine under cold conditions. Int. J. Automotive Technology 8, 3, 289–298.
Pastor, J. V., García-Olive, J. M., Pastor, J. M. and Ramírez-Hernández, J. G. (2011). Ignition and combustion development for high speed direct injection diesel engines under low temperature cold start conditions. Fuel 90, 4, 1556–1566.
Shi, X., Wang, T. and Ma, C. (2014). Simulations of the diesel engine performance with a two-stage sequential turbocharging system at different altitudes. Proc. Institution of Mechanical Engineers Part D: J. Automobile Engineering 228, 14, 1718–1726.
Soares, S. and Sodre, J. R. (2002). Effects of atmospheric temperature and pressure on the performance of a vehicle. Proc. Institution of Mechanical Engineers Part D: J. Automobile Engineering 216, 6, 473–477.
Turns, S. R. (2000). An Introduction to Combustion: Concepts and Applications. 2nd edn. McGraw-Hill. Boston, USA.
Wang, J. X. and Shuai, S. J. (2011). Automotive Engine Fundamentals. 1st edn. Tsinghua University Press. Beijing, China.
Wang, X., Ge, Y., Yu, L. and Feng, X. (2013). Comparison of combustion characteristics and brake thermal efficiency of a heavy-duty diesel engine fueled with diesel and biodiesel at high altitude. Fuel, 107, 852–858.
Wang, X., Ge, Y., Yu, L. and Feng, X. (2013). Effects of altitude on the thermal efficiency of a heavy-duty diesel engine. Energy, 59, 543–548.
Yang, C., Ma, C. C., Li, Z. G., Cai, R., Peng, S. and Yang, Y. (2003). Numerical and experimental investigation of turbocharged diesel engine power recovery at high altitudes. J. Tsinghua University 43, 12, 1687–1690.
Zhou, G. M., Liu, R. L., Dong, S. R., Jun, L. I., Wang, W. and Zhang, Z. J. (2012). Combustion characteristics of common rail diesel engine under high altitude (low pressure) conditions. Trans. Csice 30, 3, 220–226.
Zhou, G., Liu, R., Liu, W., Liu, G., Dong, S. and Xu, X. (2014). Combustion characteristics of common rail diesel engine under part load operating conditions at high altitude. J. Combustion Science and Technology 20, 2, 147–151.
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Kan, Z.C., Lou, D.M., Cao, Z.Z. et al. Effects of altitude on combustion characteristic during cold start of heavy-duty diesel engine. Int.J Automot. Technol. 18, 209–217 (2017). https://doi.org/10.1007/s12239-017-0020-x
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DOI: https://doi.org/10.1007/s12239-017-0020-x