Publication result detail

Review of methods for increasing the mechanical efficiency of exhaust gas turbochargers

NOVOTNÝ, P.; HRABOVSKÝ, J.

Original Title

Review of methods for increasing the mechanical efficiency of exhaust gas turbochargers

English Title

Review of methods for increasing the mechanical efficiency of exhaust gas turbochargers

Type

Paper in proceedings (conference paper)

Original Abstract

The paper introduces a review of computation models of hydrodynamic thrust bearings, that can be applied for analyses of the rotor dynamics of rotating machines. The bearing models cover steady state or transient state regimes of turbochargers and they focus on problems of turbocharger mechanical efficiency, lubricant mass flows thru bearings or tribology of bearing contact surfaces. Analytical solutions, solutions by in-house developed programs based on Finite Difference Method (FDM) or solutions by 3-dimensional models based on commercial software for Computational Fluid Dynamics (CFD) are compared and verified by technical experiments on real exhaust gas turbochargers.

English abstract

The paper introduces a review of computation models of hydrodynamic thrust bearings, that can be applied for analyses of the rotor dynamics of rotating machines. The bearing models cover steady state or transient state regimes of turbochargers and they focus on problems of turbocharger mechanical efficiency, lubricant mass flows thru bearings or tribology of bearing contact surfaces. Analytical solutions, solutions by in-house developed programs based on Finite Difference Method (FDM) or solutions by 3-dimensional models based on commercial software for Computational Fluid Dynamics (CFD) are compared and verified by technical experiments on real exhaust gas turbochargers.

Keywords

turbocharger; noise; vibration; mechanical efficiency; lubrication

Key words in English

turbocharger; noise; vibration; mechanical efficiency; lubrication

Authors

NOVOTNÝ, P.; HRABOVSKÝ, J.

RIV year

2020

Released

12.09.2019

Publisher

Publishing Centre of Slovak University of Agriculture in Nitra

Location

Nitra

ISBN

978-80-7509-668-5

Book

Proceedings of the L. International Scientific Conference of Czech and Slovak Universities and Institutions Dealing with Motor Vehicles and Internal Combustion Engines Research – KOKA 2019

Edition

1

Volume

1

Number

2018

Pages from

225

Pages to

234

Pages count

9

BibTex

@inproceedings{BUT161288,
  author="Pavel {Novotný} and Jozef {Hrabovský}",
  title="Review of methods for increasing the mechanical efficiency of exhaust gas turbochargers",
  booktitle="Proceedings of the L. International Scientific Conference of Czech and Slovak Universities and Institutions Dealing with Motor Vehicles and Internal Combustion Engines Research – KOKA 2019",
  year="2019",
  series="1",
  volume="1",
  number="2018",
  pages="225--234",
  publisher="Publishing Centre of Slovak University of Agriculture in Nitra",
  address="Nitra",
  isbn="978-80-7509-668-5"
}