Двигуни внутрішнього згоряння, установки та технічна експлуатація Internal Combustion Engines, Plants and Technical Maintenance Department
ENGINEERING ANALYSIS AND OPTIMIZATION OF MODERN TURBOCOMPRESSOR DESIGNS
Type: selectiveLecturer: Yurii MoshentsevYear of preparation: 3rdSemester: 6thNumber of credits: 5 Number of modules: 1Number of content modules: 4Total number of hours: 150Type of control: testWork programme 2024
Hours distribution
General information
Acquired competences
● Acquiring theoretical knowledge and practical skills to improve turbochargers through more careful selection of initial parameters in the calculation and design of flow parts of these machines.
Learning outcomes
● Know the modern methods of describing processes in compressor flow parts;● be able to choose effective initial parameters when designing compressors;● be able to calculate the energy losses in the flow stroke sections, which will be related to the design parameters of these sections;● the ability to design more efficient compressor designs for supercharging piston engines;● the ability to design more efficient internal combustion engines, the main components of which will be advanced compressors.
Programme of the academic discipline
Module 1.
Content module 1: Supercharging of modern internal combustion engines and ways to improve turbochargers.
Topic 1: Load characteristics of modern engines.
Topic 2. Characteristics of turbochargers, joint operation of TC and engines.
Topic 3. Ways to adjust turbochargers and their design features to ensure the parameters of joint operation.
Content module 2. Dimensionless parameters for evaluating compressor machines.
Topic 4. Dimensionless criteria.
Topic 5. Degree of wheel reactivity as a means of assessing its effectiveness.
Topic 6. Methods of estimating the real parameters of the compressor wheel through reactivity coefficients and related expressions.
Content module 3: Designing a compressor wheel.
Topic 7. Selection of the main parameters of the wheel when designing a turbocharger.
Topic 8: Influence of the β2 angle on the parameters of the impeller and compressor stage.
Topic 9: Methods of designing the meridian profile of oscillating wheels.
Topic 10. Calculation of a compressor wheel with β2<90o.
Content module 4. Fixed elements of the compressor flow path and their possible optimisation.
Topic 11. BLD, operating conditions, modern recommendations for improving the shape of the channel, calculation of losses depending on variable design parameters and air flow.
Topic 12: LD, operating conditions, modern recommendations for improving the shape of the channel, calculation of losses depending on the variable parameters of the design and air flow.
Topic 13. Curl, working conditions, modern recommendations for improving the shape of the duct, losses depending on the variable parameters of the design and air flow.
Topic 14. Dependence of the compressor stage efficiency on the efficiency of all elements of the air path.
Topics of practical classes
● Load characteristics of modern engines
● Characteristics of turbochargers, joint operation of TCs and engines
● Methods of adjusting turbochargers and their design features to ensure compatible operation● Dimensionless criteria for turbochargers● Wheel reactivity as a means of evaluating wheel performance● Methods of estimating real-world wheel parameters using reactance coefficients and related expressions● Selection of the main parameters of the wheel in the design of a turbocharger● Effect of β2 angle on impeller and compressor stage parameters● Methods for designing the meridian profile of oscillating impellers
● Design of a compressor impeller with β2 < 90o● BLDs, operating conditions, modern recommendations for improving the channel shape, calculation of losses depending on variable design parameters and air flow● LD, operating conditions, modern recommendations for improving the shape of the duct, calculation of losses depending on variable design parameters and air flow● Curl, working conditions, modern recommendations for improving the shape of the duct, losses depending on the variable parameters of the design and air flow
● Dependence of compressor stage efficiency on the efficiency of all elements of the air path
Forms of current and final control
The achievements of the applicant are assessed according to the 100-point system of the University.
Recommended sources of information
Main literature
1. Korogodsky V. A. Gas dynamics and supercharging units. Lecture notes. - Kharkiv: KhNADU, 2022. 188 p.
2. Methodical instructions on the discipline ‘Gas dynamics and supercharging units’ for the implementation of calculation and graphic work of students of the third year of study at the first (bachelor's) level of higher education, speciality 142 ‘Power Engineering’: methodical recommendations / V. A. Korogodskyi - Kharkiv: KhNADU, 2022. 56 p.
3. Methodical instructions on the discipline ‘Gas dynamics and supercharging units’ for independent work of students of the sixth year of study at the first (bachelor's) level of higher education, speciality 142 ‘Power Engineering’: methodical recommendations / V. A. Korogodskyi - Kharkiv: KhNADU, 2022. 52 p.
4. Purpose and implementation of gas turbine supercharging of internal combustion engines. Turbochargers for supercharging internal combustion engines. Lecture notes. Ukrainian State University of Railway Transport. Kharkiv. 2019. - 32 с.
5. Nguyen-Schafer N. Rotordynamics of Automotive Turbochargers 2nd ed. - Cham; Heidelberg; New York; Dordrecht; London: Springer, 2015. - 362 p.
6. Graham Bell. Increasing engine power by supercharging / Graham Bell - Kyiv: Auto Club, 2013. - 241 p.
7. Halderman, J. Principles, Diagnosis, and Service / J. Haldennan. Haldennan // Pearson Education. - 2012. - 64 p.
8. Wintrujf I. The next generation of MTU series 4000 rail engines to comply with EUI1IB emission legislation / I. Wintrujf. Wintruff, O. Buecheler, S. Huchler // CIMAC Congress 2010.
9. Codan E. Emissions A new Challenge for Turbocharging / E. Codan, C. Mathey // CIMAC Congress 2007 - Paper No. 245.
10. Baines, N. S. Fundamentals of turbocharging / N. S. Baines. - Concepts ETI, 2005. - 280 p.
11. Mandrus V. I. Hydraulic and aerodynamic machines (pumps, fans, gas blowers, compressors): Textbook. - Lviv: Magnolia Plus, publisher V. M. Picha, 2005. - 340 p.
12. Mollenhauer K., Tschoeke N. Handbook of Diesel Engines. Springer-Verlag Berlin - Heidelberg. 2010. - 637 p.
13. Moshentsev Y. L. Optimisation of modern turbochargers. Alternative course. Lecture notes (electronic version) - Mykolaiv: USMTU: 2024. - 125 с.
Supporting literature
1. Gerasymov G.G. Superchargers and thermal engines: a textbook / G.G. Gerasymov. - Rivne; NUWHP, 2012. - 552 p.
2. Methodical instructions for the course work ‘Selection of parameters and gas-dynamic calculation of the turbocharger of the internal combustion engine’ / A. P. Marchenko, I. V. Parsadanov: NTU ‘KhPI’, 2006. 44 p.
3. Nguyen-Schafer N. Aero and Vibroacoustics of Automotive Turbochargers Springer-Verlag Berlin Heidelberg, 2013. - 142 p.
4. Leontiev D., Voronkov O., Korohodskyi V., Hlushkova D., Nikitchenko L., Teslenko E., Lykhodii O. (2020). Mathematical Modelling of Operating Processes in the Pneumatic Engine of the Car. SAE Technical Paper 2020-01-2222.
5. Rogovyi, A., Korohodskyi, V., Medvediev, Y. (2021). Influence of Bingham fluid viscosity on the energy performances of a vortex chamber pump. Energy Vol. 218 (2021)119432.
Information resources on the Internet
1. Scientific Library of the Admiral Makarov National University of Shipbuilding. Access mode: http://lib.nuos.edu.ua.
2. Kharkiv State Scientific Library named after V. G. Korolenko. Access mode: http://korolenko.kharkov.com.
3. NUK repository: https://eir.nuos.edu.ua/home
4. Society of Automotive Engineers (SAE): http://www.sae.org
5. Winterthur Gas & Diesel Ltd. (WinGD) www.wingd.com
6. Wärtsilä https://www.wartsila.com
7. MAN Energy Solutions https://www.man-es.com
8. Caterpillar website https://www.caterpillar.com
9. Mitsubishi website: https://www.mhi.com
10. Akasaka Diesels Ltd website: http://www.akasaka-diesel.jp/en/
11. Daihatsu Diesel website: https://www.dhtd.co.jp/en/
12. Hyundai website: http://www.hyundai-engine.com/en/