Document Type : Scientific extension


1 Assistant Professor, Aerospace University Complex, Malek Ashtar University, Tehran, Iran

2 M. Sc. Student, Aerospace University Complex, Malek Ashtar University, Tehran, Iran


The key to maximizing power and improving engine performance during the mid-term is to use the turbocharged system on these engines. The turbulent system is a process that is performed by installing or increasing the succession of compressed air by the turbocharger. Another advantage of using a humorous system is to reduce the generation of emissions from internal combustion engines. The purpose of this article is to investigate the turbulent system by turbochargers in single-step and multi-stage methods. In multi-stage fluent systems, several cooling air is used to cool the air entering the combustion chamber. A two stage feeder system is used to meet pollutant standards and diesel engines working at high altitudes at sea level, and a multistage feedwater system is recommended for use on aerial gasoline engines at altitudes above 10 km


[1] Kech, J., Hegner, R. and Männle, T. “Turbocharging: Key Technology for High-Performance Engines,” MTU Friedrichshafen GmbH, pp. January 2014.
 [2] Shan, P. Zhou, Y. and Zhu, D., “Mathematical Model of Two-Stage Turbocharging Gasoline Engine Propeller Propulsion System and Analysisof Its Flying,” Journal of Engineering for Gas Turbines and Power, Vol. 137. MAY 2015.Copyright © 2015 by ASME.
 [3] Cui, Y., Hu, Zh., Deng, K. and Wang, Q. “MillerCycle Regulatable, Two-Stage Turbocharging System Design for Marine Diesel,” Journal of Engineering for Gas Turbines and Power, Vol. 136, FEBRUARY 2014. Copyright VC 2014 by ASME.
 [4] Liu, R., Zhang, Zh., Dong, S. and Zhou, G., “HighAltitude Matching Characteristic of Regulated TwoStage Turbochargerwith Diesel Engine,” Journal of Engineering for Gas Turbines and Power, July 22, 2016. Copyright (c) 2017 by ASME.
[5] LHeywood., J.B., Internal combustion engine fundamentals, McGraw-Hill series in mechanical engineering, 1988.
 [6] Wilkinson, R. E. and Benway, R. B., “Liquid Cooled Turbocharged Propulsion System forHALE Application,” Presented at the International Gas Turbine and Aeroengine Congress and Exposition Orlando FL,Copyright © 1991 by ASME, 91-GT-399. June 3-6, 1991.
 [7] Kollmann, K., Lenz, H. P., Pischinger, R., Reitz, R. D. Suzuki, T., “Charging the Internal Combustion Engine Powertrain,” Springer Wien NewYork, Wien, ISBN 978-3-211-33033-3,2007.
 [8] Seok Kang, Y., Jun Lim, B. and Jun Cha, B., “MultiStage Turbocharger System Analysis Method for High Altitude UAV Engine,” Journal of Mechanical Science and Technology, Vol. 31, No. 6, 2017, KSME, Accepted February 7, 2017.
[9] Tsach, S., Yaniv, A., Avni, H. and Penn, D. “High Altitude Long Endurance (HALE) UAV for Intelligence Missions,” AIAA and ICAS, ICAS-96-4.2. 1, 1996.
 [10] Panagi, A. Sadasivan, M. and Moore, S., Unmanned Vehicleshandbook 2008, Shephard, 2007- 2008.