Thermodynamic analysis of an engine with compression ignition according to the controlled Miller cycle
https://doi.org/10.51187/0135-3152-2022-3-27-35
Abstract
Introduction (problem statement and relevance). This article presents the thermal calculation results of an in-line six-cylinder highly accelerated engine with a displacement of 13 liters with compression ignition, according to the controlled Miller cycle. The result of the study is the main performance indicators that testify the potential for using the controlled Miller cycle with the intake valves early closing in a highly forced engine as one of the ways to improve energy efficiency.
The purpose of the study was to evaluate the effect of valve timing and the intake and exhaust valves lift on the average specific fuel consumption of a highly forced automobile engine with compression ignition at the early stages of design.
Methodology and research methods. Computational and theoretical studies were carried out using mathematical modeling of thermodynamic processes in a one-dimensional setting. The reliability of the calculations was verified by comparing the simulation data and the results of experimental studies of the internal combustion engine. To develop the laws of valve lift, the method of sequential nonlinear quadratic programming was used.
Scientific novelty and results. The law of valve lift of a highly accelerated automobile engine with compression ignition according to the controlled Miller cycle has been developed, which made it possible to reduce the minimum specific fuel consumption by up to 7.8% in comparison with the basic version of the engine.
Practical significance. The developed thermodynamic models make it possible to evaluate the qualitative and quantitative contribution to achieving fuel efficiency through the use of the controlled Miller cycle and obtain initial data in the form of a valve lift law for further work on the development of a valve timing mechanism.
About the Authors
I. F. GumerovRussian Federation
Gumerov I.F. – Deputy General Director of KAMAZ PJSC – Development Director
Naberezhnye Chelny 423827, Russian Federation
L. I. Fardeev
Russian Federation
Fardeev L.I. – Deputy Chief Designer for Engines
Naberezhnye Chelny 423827, Russian Federation
S. M. Andriyanov
Russian Federation
Andriyanov S.M. – Head of the Engine Design Research Group
Naberezhnye Chelny 423827, Russian Federation
A. V. Kozlov
Russian Federation
Kozlov A.V. – D.Sc. (Eng), associate professor, Head of the Department of Energy-Saving Technologies and Alternative Fuels, Center “Power units”
Moscow 125438, Russian Federation
A. A. Matveev
Russian Federation
Matveev A.A. – postgraduate
Naberezhnye Chelny 423810, Russian Federation
K. V. Milov
Russian Federation
Milov K.V. – postgraduate, engineer, Center “Power units”
Moscow 125438, Russian Federation
References
1. Wang Z., Wu P., Li Y. Experimental study on the gas exchange process of different intake valve closing in a 4-stroke diesel engine. Materials Science, Energy Technology, and Power Engineering, 2017, vol. 1839, no. 2.
2. Gonca G., Ayhan V., Cesur I. Application of the Miller cycle and turbocharging into a diesel engine to improve performance and decrease NO emissions. Energy, 2015, vol. 93, pp. 795–800.
3. Charalampos G., Azimov U. Analysis and multiparametric optimization of the performance and exhaust gas emissions of a heavy-duty diesel engine operating on Miller cycle. Energies, 2020, vol. 13, no. 14. 25 p.
4. Xin Q. Diesel Engine System Design. Cambridge: Woodhead Publishing Ltd., 2011. 1038 p.
5. Belousov E.V., Belousova T.P. [New approaches to the organization of work processes in marine four-stroke engines]. Naukoviy vіsnik khersonskoї derzhavnoї morskoї akademії: Naukoviy zhurnal, 2012, no. 2 (7), pp. 17–25. (In Russian)
6. Garcia E., Triantopoulos V., Boehman A. Impact of Miller cycle strategies on combustion characteristics, emissions and efficiency in heavy-duty diesel engines. SAE Technical Paper Series, 2020, no. 2020–01–1127.
7. Zhu S., Deng K., Liu S. Comparative analysis and evaluation of turbocharged dual and miller cycles under different operating conditions. Energy, 2015, vol. 93, pp. 75–87.
8. Kolchin A.I., Demidov V.P. [Calculation of automobile and tractor engines]. Moscow, Vysshaya shkola Publ., 2002. 496 p. (In Russian)
9. Cui Y., Deng K. Thermodynamic model and optimization of a Miller cycle applied on a turbocharged diesel engine. Journal of Thermal Science and Technology, 2014, vol. 9, no. 1. 13 p.
10. Korchemnyy L.V. [The gas distribution mechanism of an automobile engine. Kinematics and dynamics]. Moscow, Mashinostroenie Publ., 1981. 191 p. (In Russian)
11. Luksho V.A. [Mathematical model of the thermodynamic cycle of a gas engine]. Transport na al’ternativnom toplive, 2012, no. 6, pp. 54–65. (In Russian)
12. Valeev D.Kh., Kadyshev V.G., Lushcheko V.A. [Thermal calculation of piston engines in AVL BOOST software. Tutorial]. Naberezhnye Chelny, NChI KFU Publ., 2019. 157 p. (In Russian)
13. AVL BOOST. Theory. AVL List GmbH Graz, Austria, 2019. [License agreement between AVL and PJSC KAMAZ, 2019]. (In Russian)
14. Mayorova N.L., Glazkov D.V. [Optimization Techniques: Tutorial]. Yaroslavl: YarGU Publ., 2015. 112 p. (In Russian)
15. Rinaldini C.A., Mattarelli E., Golovitchev V.I. Potential of the Miller cycle on a HSDI diesel automotive engine. Applied Energy, 2013, vol. 112, pp. 102–119.
16. Khanin N.S., Aboltin E.V., Lyamtsev B.F. [Turbocharged vehicle engines]. Moscow, Mashinostroenie Publ., 1991. 336 p. (In Russian)
Review
For citations:
Gumerov I.F., Fardeev L.I., Andriyanov S.M., Kozlov A.V., Matveev A.A., Milov K.V. Thermodynamic analysis of an engine with compression ignition according to the controlled Miller cycle. Trudy NAMI. 2022;(3):27-35. (In Russ.) https://doi.org/10.51187/0135-3152-2022-3-27-35