Effect of Inlet Air Heating on Start Characteristics of a Common-Rail Diesel Engine in High Altitude Environment

Abstract:

Cold starting test of a high pressure common rail diesel engine was conducted on an engine test bench simulating plateau environment with high altitudes and low temperature. A comprehensive study of cold starting and idling performance was investigated under plateau ambient temperature of-35°C to-10°C and altitude ranged from 2km to 4km. Results show that, without inlet air heating, during engine starting up under different altitude at-10°C, average inlet temperature and pressure can drop slightly and idling rotating speed exhibits strong fluctuation. By heating up inlet air for 60 seconds, the inlet temperature shows statistically linear growing trend in the first 8 heating seconds, during which period averaged inlet temperature rises to 12.4°C, thus obviously lifting up intake temperature, improving engine starting up performance and reducing rotating speed fluctuation. At high altitude and cold plateau conditions, by prolonging the air heating time solely has limited effects on reducing engine starting up time or improving cold starting performance, nor can rotating speed fluctuation been effectively reduced. When ambient temperature reaches-30°C, by heating up inlet air for the same specified time interval, an average of temperature rise of 2.4°C can be obtained for altitude step increase of 1 kilometer, but cold starting up performance has not been therefore significantly improved.

• Periodical: Applied Mechanics and Materials (Volumes 488-489)
• Pages: 1052-1056
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.488-489.1052
• Online since: January 2014
• Authors: Guo Li Chang*, Di Ming Lou, Yan Qing Yang, Xiao Tian Zhang, Wen Zhi Lv, Ze Chao Kan
• Keywords: Cold Starting, Common Rail Diesel Engine, Plateau Environment Simulating

References

[1] Zhang H. Study of the control strategy of the plateau self adapted turbocharging system for diesel engine[C]. SAE Paper 2008-01-1636, (2008).

DOI: 10.4271/2008-01-1636

[2] YuKui. Study With Test On Cold Start Electronic Controlled High Pressure Common Rail Diesel Engine [D]. Hunan University, (2011).

[3] LIU Rui-lin , ZHOU Guang-meng DONG Su-rong , ZHANG Yun-fei , SHI Yan-bin , HE Xi-chang . Simulation study for high altitude performance of high pressure common rail diesel [J]. Vehicle Engine,. 2012(3): 87-91.

[4] HAN Kai, ZHU Zhen-xia, ZHANG Fu-jun, LI Yun-long, FU Geng, ZHANG Zhen-yu. Research on Composite Adjustable Supercharged Program of Diesel Engine for Power Recovery at Plateau [J]. Acta Armamentarii,. 2013(02): 129-136.

[5] YANG Ce, MA Chaochen, LI Zhigang, CAI Ruizhong, PENG Sen, YANG Yong. Numerical and experimental investigation of turbocharged diesel engine power recovery at high altitudes [J]. Journal of Tsinghua University(Science and Technology). 2003, 43(12): 1687-1690.

[6] Soares S M C, Sodré J R. Effects of atmospheric temperature and pressure on the performance of a vehicle[J]. Proceedings of the Institution of Mechanical Engineers, Part D：Journal of Automobile Engineering, 2002, 216(6)：473-477.

DOI: 10.1243/09544070260137499

[7] LIU Xi-hao, WEI Ming-shan, MA Chao-chen, SHI Xin. Simulation on One-Stage and Two-Stage Turbocharged Diesel Engines at Different Altitudes [J]. Transactions of CSICE, 2010, 28(5)：447-452.

[8] LIU Rui-lin, ZHOU Guang-meng, LI Jun, DONG Su-rong, ZHOU Ping, GE Fei. Calibration of Common-Rail Diesel Engine at High Altitudes Under Full Load Operating Conditions [J]. Journal of Combustion Science and Technology. 2012, 18(3): 199-207.

[9] Nazarov A, Ralston R E, Reynolds D J. Method and System for Controlling Fuel Injection Timing to Maintain Desired Peak Cylinder Pressure for High Altitude Operation：US, 7 246 605 B2[P]. (2007).

[10] LI Guanghua. Study on plateau adaptability of CA6DE-17 diesel engine [D]. Jilin University, (2010).

[11] Agudelo J, Agudelo A, Pérez J. Energy and exergy analysis of a light duty diesel engine operating at different altitudes[J]. Revista Facultad de Ingeniería Universidad de Antioquia, 2009(48)：45-54.

DOI: 10.17533/udea.redin.n75a02

[12] SHEN Li zhong , SHEN Ying gang , BI Yu hua , YAN Wen sheng The combustion process in different altitude naturally aspirated and turbocharged diesel engine [J]. Transactions of CSICE, 2002, 20(1)：50-52.

[13] Benjumea P, Agudelo J, Agudela A. Effect of altitude and palm oil biodiesel fuelling on the performance and combustion characteristics of a HSDI diesel engine[J]. Fuel, 2009, 88(4)：725-731.

DOI: 10.1016/j.fuel.2008.10.011