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Research Papers: Gas Turbines: Turbomachinery

Heat Transfer Correction Methods for Turbocharger Performance Measurements

[+] Author and Article Information
Mario Schinnerl

Continental Automotive GmbH,
Regensburg D-93055, Germany
e-mails: mario.schinnerl-ext@continental-corporation.com and
mario.schinnerl@continental-corporation.com

Joerg Seume

Institute of Turbomachinery and Fluid Dynamics,
Leibniz Universitaet Hannover,
Hannover D-30511, Germany
e-mail: seume@tfd.uni-hannover.de

Jan Ehrhard

Continental Automotive GmbH,
Regensburg D-93055, Germany
e-mail: jan.ehrhard@continental-corporation.com

Mathias Bogner

Continental Automotive GmbH,
Regensburg D-93055, Germany
e-mail: mathias.bogner@continental-corporation.com

1Corresponding author.

Contributed by the Turbomachinery Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received June 17, 2016; final manuscript received July 11, 2016; published online September 13, 2016. Editor: David Wisler.

J. Eng. Gas Turbines Power 139(2), 022602 (Sep 13, 2016) (9 pages) Paper No: GTP-16-1223; doi: 10.1115/1.4034234 History: Received June 17, 2016; Revised July 11, 2016

Turbocharger performance maps used for the matching process with a combustion engine are measured on test benches which do not exhibit the same boundary conditions as the engine. However, these maps are used in engine simulations, ignoring that the compressor and turbine aerodynamic performance is rated on the basis of quantities which were measured at positions which do not coincide with the respective system boundaries of the turbomachinery. In the operating range of low to mid engine speeds, the ratio between the heat flux and the work done by the turbine and the compressor is much greater than at high speeds where heat transfer phenomena on the compressor side can usually be neglected. Heat losses on the turbine side must be taken into account even at higher shaft speeds when dealing with isentropic turbine efficiencies. Based on an extensive experimental investigation, a one-dimensional heat transfer model is developed. The compressor and turbine side are treated individually and divided into sections of inlet, wheel, outlet, diffuser, and volute. The model demonstrates the capability to properly account for the impact of heat transfer, and thereby improves the predictive accuracy of temperatures relevant for the matching process.

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References

Serrano, J. , Arnau, P. , Reyes-Belmonte, F. , and Lefebvre, M. , 2013, “ Importance of Heat Transfer Phenomena in Small Turbochargers for Passenger Car Applications,” SAE Paper No. 2013-01-0576.
Rautenberg, M. , Mobarak, A. , and Malobabic, M. , 1983, “ Influence of Heat Transfer Between Turbine and Compressor on the Performance of Small Turbochargers,” International Gas Turbine Congress, Tokyo, Japan, Oct. 23–29, pp. 566–574.
Malobabic, M. , 2004, “ Das Betriebsverhalten leitschaufel- und bypassgeregelter PKW-Abgasturbolader,” Ph.D. thesis, University of Hannover, Hannover, Germany.
Hagelstein, D. , Beyer, B. , Seume, J. , and Rautenberg, M. , 2002, “ Heuristical View on the Non-Adiabatic Coupling System of Combustion Engine and Turbocharger,” 7th International Conference on Turbochargers and Turbocharging, London, May 14–15, Paper No. C602/015.
Shaaban, S. , and Seume, J. , 2006, “ Analysis of Turbocharger Non-Adiabatic Performance,” 8th International Conference on Turbochargers and Turbocharging, London, May 14–15, Paper No. C647/027.
Shaaban, S. , 2004, “ Experimental Investigation and Extended Simulation of Turbocharger Non-Adiabatic Performance,” Ph.D. thesis, University of Hannover, Hannover, Germany.
Bohn, D. , Heuer, T. , and Kusterer, K. , 2003, “ Conjugate Flow and Heat Transfer Investigation of a Turbocharger: Part I—Numerical Results,” ASME Paper No. GT2003-38445.
Bohn, D. , Moritz, N. , and Wolff, M. , 2003, “ Conjugate Flow and Heat Transfer Investigation of a Turbocharger: Part II—Experimental Results,” ASME Paper No. GT2003-38849.
Heuer, T. , Engels, B. , and Wollscheid, P. , 2005, “ Thermomechanical Analysis of a Turbocharger Based on Conjugate Heat Transfer,” ASME Paper No. GT2005-68059.
Baines, N. , Wygant, K. , and Dris, A. , 2010, “ The Analysis of Heat Transfer in Automotive Turbochargers,” ASME J. Eng. Gas Turbines Power, 132(4), p. 042301. [CrossRef]
Romagnoli, A. , and Martinez-Botas, R. , 2012, “ Heat Transfer Analysis in a Turbocharger Turbine: An Experimental and Computational Evaluation,” J. Appl. Therm. Eng., 38(3), pp. 58–77. [CrossRef]
Olmeda, P. , Dolz, V. , Arnau, F. J. , and Reyes-Belmonte, M. A. , 2013, “ Heat Transfer Analysis in a Turbocharger Turbine: An Experimental and Computational Evaluation,” J. Math. Comput. Modell., 57(7–8), pp. 1847–1852. [CrossRef]
Serrano, J. R. , Olmeda, P. , Paez, A. , and Vidal, F. , 2010, “ An Experimental Procedure to Determine Heat Transfer Properties of Turbochargers,” Meas. Sci. Technol., 21(3), p. 035109. [CrossRef]
Burke, R. D. , Copeland, C. D. , and Duda, T. , 2014, “ Investigation Into the Assumptions for Lumped Capacitance Modelling of Turbocharger Heat Transfer,” 6th International Conference on Simulation and Testing, Berlin, May 14–16.
SAE, 2011, “ Turbocharger Nomenclature and Terminology,” SAE International, Warrendale, PA, Standard No. J922_201106. http://standards.sae.org/j922_201106/
Lüddecke, B. , Filsinger, D. , Ehrhard, J. , and Bargende, M. , 2012, “ Heat Transfer Correction and Torque Measurement for Wide Range Performance Measurement of Exhaust Gas Turbocharger Turbines,” 17th Supercharging Conference, Dresden, Germany, Sept. 13–14.
Baehr, H. D. , and Stephan, K. , 2011, Heat and Mass Transfer, 3rd ed., Springer, Berlin.
Stanitz, J. D. , 1952, “ One-Dimensional Compressible Flow in Vaneless Diffusers of Radial- and Mixed-Flow Centrifugal Compressors, Including Effects of Friction, Heat Transfer and Area Change,” National Advisory Committee for Aeronautics, Washington, DC, Report No. NACA-TN-2610.
Brown, W. B. , 1947, “ Friction Coefficients in a Vaneless Diffuser,” National Advisory Committee for Aeronautics, Washington, DC, Report No. NACA-TN-1311.
Chen, H. , Hakeem, I. , and Martinez-Botas, R. F. , 1996, “ Modeling of a Turbocharger Turbine Under Pulsating Inlet Conditions,” Proc. Inst. Mech. Eng., Part A, 210(5), pp. 397–408. [CrossRef]

Figures

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Fig. 2

Separation of diabatic compression/expansion into adiabatic working process and heat transfer before and after compression/expansion

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Fig. 3

Additional instrumentation on compressor and turbine side

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Fig. 1

Difference between test bench and turbomachinery boundaries

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Fig. 5

Temperature of the diffuser backplate at diffuser inlet and outlet

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Fig. 8

Compressor performance map with speed lines 80, 100, 120, 140, and 170 kRPM including difference between adiabatic and diabatic compressor efficiency for Tcool = 90 °C

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Fig. 4

Temperature at contact area between compressor and bearing housing

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Fig. 6

Calculated and measured static pressure at diffuser inlet

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Fig. 7

Calculated and measured total temperature at diffuser inlet

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Fig. 9

Heat correction factor for two different coolant temperatures

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Fig. 10

Thermomechanical turbine efficiency depending on variation of coolant temperature and insulated or noninsulated turbine housing

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Fig. 11

Ratio of total amount of heat transfer to adiabatic turbine work

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Fig. 12

Predicted and measured static turbine outlet temperature with insulated turbine housing and coolant temperature of 90 °C

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