Email this article The experimental study of mechanical losses in the modern diesel engine
- Authors: Khannanov M.D.1,2, Gumerov I.F.2, Fardeev L.I.2, Kulikov A.S.2, Alimgulov E.R.2
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Affiliations:
- Naberezhnye Chelny Institute of the Kazan Federal University
- Research and Development Center of PJSC “KAMAZ”
- Issue: Vol 89, No 3 (2022)
- Pages: 187-195
- Section: Theory, designing, testing
- URL: https://journals.rcsi.science/0321-4443/article/view/125922
- DOI: https://doi.org/10.17816/0321-4443-106271
- ID: 125922
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Abstract
BACKGROUND: Amid the tightening of the CO2 emission requirements as well as high level of competition on the commercial truck market, the focus area of the internal combustion engine (ICE) development is as follows: high engine efficiency and fuel economy, minimization of internal losses and engine cycle optimization for all operation modes. Engine performance factors of modern 12–13-liter diesel engines, existing on the global market, are as follows: the minimal specific fuel consumption is 179–182 g/kWh, effective efficiency is 46–48%. Decreasing of mechanical losses is one of the features that made the achievement of such factors possible. The relevant issue for choosing the strategy of mechanical losses decreasing is formation of balance in losses distribution between main ICE groups of components. Moreover, considering the mechanical losses dependence on engine operating speed, engine cycle parameters and engine design features, it is important to determine the pattern of change in mechanical losses.
AIMS: Assessment of mechanical losses of modern diesel engine with high effective efficiency in an experimental way. Formation of mechanical losses balance.
METHODS: The study object is the 6ChN 13/15 inline six-cylinder diesel engine with the operation volume of 11.95 liters. The mechanical losses assessment was performed with the engine, propelled by a dynamometric machine on a testing facility with fully stabilized conditions, with the method of sequential disassemble of main groups of components.
RESULTS: Relevant data of mechanical losses level of the modern diesel engine with the distribution between main groups of components is obtained. Mechanical losses dependence on operation speed, oil and coolant liquid temperatures is formed.
CONCLUSIONS: Practical value of the study lies in assessment of contribution of each group of components in the total friction as well as in assessment of the degree of design and technological development of ICEs. According to the study results, areas of possible improvement of friction for each group of components and engine as a whole will be formed.
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##article.viewOnOriginalSite##About the authors
Marat D. Khannanov
Naberezhnye Chelny Institute of the Kazan Federal University; Research and Development Center of PJSC “KAMAZ”
Author for correspondence.
Email: marhan87@mail.ru
ORCID iD: 0000-0001-9816-0691
SPIN-code: 9825-8736
Postgraduate of the Automobiles, Automobile Engines and Design Department
Russian Federation, Naberezhnye Chelny; Naberezhnye ChelnyIrek F. Gumerov
Research and Development Center of PJSC “KAMAZ”
Email: gumerov@kamaz.ru
ORCID iD: 0000-0002-5538-8693
SPIN-code: 3475-4219
Cand. Sci. (Engin.); Deputy General Director - Development Director
Russian Federation, Naberezhnye ChelnyLenar I. Fardeev
Research and Development Center of PJSC “KAMAZ”
Email: Lenar.Fardeev@kamaz.ru
ORCID iD: 0000-0002-2508-5915
SPIN-code: 4034-8695
Deputy Chief Engine Designer for Advanced Engines
Russian Federation, Naberezhnye ChelnyAndrey S. Kulikov
Research and Development Center of PJSC “KAMAZ”
Email: Andrey.Kulikov@kamaz.ru
ORCID iD: 0000-0003-4005-1112
SPIN-code: 1525-7860
Chief Engine Designer of R&D Center
Russian Federation, Naberezhnye ChelnyEduard R. Alimgulov
Research and Development Center of PJSC “KAMAZ”
Email: Eduard.Alimgulov@kamaz.ru
ORCID iD: 0000-0002-7808-8327
SPIN-code: 8738-3647
Head of the Design Group of Advanced Engines, R&D Center
Russian Federation, Naberezhnye ChelnyReferences
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