This study was motivated by the difficulties to assess the aerothermodynamic effects of heat transfer on the performance of turbocharger turbine by only looking at the global performance parameters, and by the lack of efforts to quantify the physical mechanisms associated with heat transfer. In this study, we aimed to investigate the sensitivity of performance to heat loss, to quantify the aerothermodynamic mechanisms associated with heat transfer and to study the available energy utilization by a turbocharger turbine. Exergy analysis was performed based on the predicted three-dimensional flow field by detached eddy simulation (DES). Our study showed that at a specified mass flow rate, (1) pressure ratio drop is less sensitive to heat loss as compared to turbine power reduction, (2) turbine power drop due to heat loss is relatively insignificant as compared to the exergy lost via heat transfer and thermal irreversibilities, and (3) a single-stage turbine is not an effective machine to harvest all the available exhaust energy in the system.
Skip Nav Destination
Article navigation
September 2018
Research-Article
Aerothermodynamics and Exergy Analysis in Radial Turbine With Heat Transfer
Shyang Maw Lim,
Shyang Maw Lim
Competence Center for Gas Exchange (CCGEx),
Department of Mechanics,
KTH Royal Institute of Technology,
Osquars Backe 18,
Stockholm 10044, Sweden
e-mail: smlim@kth.se
Department of Mechanics,
KTH Royal Institute of Technology,
Osquars Backe 18,
Stockholm 10044, Sweden
e-mail: smlim@kth.se
Search for other works by this author on:
Anders Dahlkild,
Anders Dahlkild
Linné Flow Center (FLOW),
Department of Mechanics,
KTH Royal Institute of Technology,
Osquars Backe 18,
Stockholm 10044, Sweden
e-mail: ad@mech.kth.se
Department of Mechanics,
KTH Royal Institute of Technology,
Osquars Backe 18,
Stockholm 10044, Sweden
e-mail: ad@mech.kth.se
Search for other works by this author on:
Mihai Mihaescu
Mihai Mihaescu
Competence Center for Gas Exchange (CCGEx),
Linné Flow Center (FLOW),
Department of Mechanics,
KTH Royal Institute of Technology,
Stockholm 10044, Sweden
e-mail: mihai@mech.kth.se
Linné Flow Center (FLOW),
Department of Mechanics,
KTH Royal Institute of Technology,
Osquars Backe 18
,Stockholm 10044, Sweden
e-mail: mihai@mech.kth.se
Search for other works by this author on:
Shyang Maw Lim
Competence Center for Gas Exchange (CCGEx),
Department of Mechanics,
KTH Royal Institute of Technology,
Osquars Backe 18,
Stockholm 10044, Sweden
e-mail: smlim@kth.se
Department of Mechanics,
KTH Royal Institute of Technology,
Osquars Backe 18,
Stockholm 10044, Sweden
e-mail: smlim@kth.se
Anders Dahlkild
Linné Flow Center (FLOW),
Department of Mechanics,
KTH Royal Institute of Technology,
Osquars Backe 18,
Stockholm 10044, Sweden
e-mail: ad@mech.kth.se
Department of Mechanics,
KTH Royal Institute of Technology,
Osquars Backe 18,
Stockholm 10044, Sweden
e-mail: ad@mech.kth.se
Mihai Mihaescu
Competence Center for Gas Exchange (CCGEx),
Linné Flow Center (FLOW),
Department of Mechanics,
KTH Royal Institute of Technology,
Stockholm 10044, Sweden
e-mail: mihai@mech.kth.se
Linné Flow Center (FLOW),
Department of Mechanics,
KTH Royal Institute of Technology,
Osquars Backe 18
,Stockholm 10044, Sweden
e-mail: mihai@mech.kth.se
1Corresponding author.
Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication in the JOURNAL OF TURBOMACHINERY. Manuscript received September 28, 2017; final manuscript received July 9, 2018; published online August 28, 2018. Assoc. Editor: Anestis I. Kalfas.
J. Turbomach. Sep 2018, 140(9): 091007 (11 pages)
Published Online: August 28, 2018
Article history
Received:
September 28, 2017
Revised:
July 9, 2018
Citation
Lim, S. M., Dahlkild, A., and Mihaescu, M. (August 28, 2018). "Aerothermodynamics and Exergy Analysis in Radial Turbine With Heat Transfer." ASME. J. Turbomach. September 2018; 140(9): 091007. https://doi.org/10.1115/1.4040852
Download citation file:
Get Email Alerts
Related Articles
Investigation of Unsteady Flow Phenomena in First Vane Caused by Combustor Flow With Swirl
J. Turbomach (April,2017)
Erratum: “Film Cooling Extraction Effects on the Aero-Thermal Characteristics of Rib Roughened Cooling Channel Flow” [ASME J. Turbomach., 135(2), p. 021016; DOI: 10.1115/1.4007501 ]
J. Turbomach (August,2018)
Effects of Hot Streak and Airfoil Clocking on Heat Transfer and Aerodynamic Characteristics in Gas Turbine
J. Turbomach (February,2016)
The Optimal Distribution of Pin Fins for Blade Tip Cap Underside Cooling
J. Turbomach (January,2015)
Related Proceedings Papers
Related Chapters
Control and Operational Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Thermodynamic Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Outlook
Closed-Cycle Gas Turbines: Operating Experience and Future Potential