This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Turbine Housing Design Optimization and Qualification Rig for High Temperatures
Technical Paper
2002-01-0851
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
New engine trends of higher exhaust temperature driven by retarded fuel timing to reduce NOX emissions and by increased power requirements, will likely cause turbine housings to see heavier thermal transient loads and, as a results, greater likelihood of cracks. New innovative housing designs and qualification methods are needed to prevent thermal-mechanical cracking and to provide successful design validation. The purpose of this paper is to outline a successful new design and qualification procedure of turbine housing subjected to various duty cycles in the field. Both analytical and experimental techniques are adopted in this work. Results of the analytical model were correlated to the experimental measurements for model verification. Analytical transient FEA analysis was utilized to understand the effect of thermal loading on the turbine housing. The model was calibrated against engine measurement during engine cyclic testing. After calibration the model is used to optimize the housing design. New housing design concepts are proposed. The new housing design concept is superior by at least 2.5 times increase in life compared to the traditional baseline design.
A new process to develop a qualification rig test, which reflects various engine duty cycles, is outlined. Qualification test development involved the development of a successful endurance rig test that replicates field failures. Therefore, it was necessary to conduct thermal and strain measurements on a running engine. These measurements were utilized to design simplified test conditions that signify the influence of the critical operating parameters contributing to the failures. The process was very successful in qualifying superior designs with significant life improvements. An accelerated dual turbo gas stand endurance test and test procedure was thus developed and the cycle time was shortened.
Recommended Content
Authors
Citation
Hosny, D., "Turbine Housing Design Optimization and Qualification Rig for High Temperatures," SAE Technical Paper 2002-01-0851, 2002, https://doi.org/10.4271/2002-01-0851.Also In
References
- Boyle, R.J. Spuckler, C.M. Lucci, B.L. Camperchioli, W.P. “Infrared Low-Temperature Turbine Vane Rough Surface Heat Transfer Measurements Journal of Turbomachinery 168 177 123 1
- Licu, D.N. Findlay, M.J. Gartshore, I.S. Salcudean, M “Transient Heat Transfer Measurements Using a Single Wide-Band Liquid Crystal Test” . Journal of Turbomachinery 546 552 122 3 July 2000
- Panczak, T.D. Cullimore, B.A. “Parametric Thermal Analysis and Optimization Using Thermal Desktop” International Conference On Environmental Systems July 2000 Toulouse, FRANC Session: Thermal and Environmental Control Simulation Software I - Tools
- Pompetzki, M.A. Grunder, B. Speckert, M. “Design Of Durability Sequences Based On Rainflow Matrix Optimization” SAE International Congress & Exposition February 1998 Detroit, MI, USA Session: Fatigue Research & Applications
- Harrison, C. Stevenson, A. “Accelerated Life Testing Of Push Fit Couplings For Climate Control And Fuel Line Applications” SAE International Congress & Exposition February 1998 Detroit, MI, USA Session: Testing And Instrumentation
- SAE Standared: J1826 “Turbocharger Gas Stand Test Code” March 1995
- Stock, N.J. De Koning, H.P. “Integrating the Thermal Analysis Process” International Conference On Environmental Systems July 2000 Toulouse, FRANC Session: Thermal and Environmental Control Simulation Software I- Tools
- Mendleson, A. Plasticity: Theory and Application” 1986
- Trantina, G. “Structural Analysis of Thermoplastic Components” 1994
- Knight, C.E. “The Finite Element Method in Mechanical Design” 1993
- Bons, J.P. Taylor, R.P. McClain, S.T. Rivir, R.B. “The Many Faces of Turbine Surface Roughness” Journal of Turbomachinery 739 748 123 4 October 2001
- Moukalled, F. Doughan, A. Acharya, S. “Mixed-Convection Heat Transfer in Concave and Convex Channels” Journal Of Thermophysics and Heat Transfer 508 13 4 October 1999
- Mahmoud, G.I. Sabbagh, M.Z. Ligram, P.M. “Heat Transfer in a Channel with Dimples and Protrusion on Opposite Wall” Journal Of Thermophysics and Heat Transfer 15 3 July 2001
- Song, S. Yovanovich, M.M. “Relative Contact Pressure: Dependence on Surface Roughness and Vickers Microhardness” Journal of Thermophysics 43 47 2 1 January 1988
- Holman, J.P. “Heat Transfer” 8th 1997
- Kreith, F. “Principles of Heat Transfer” Fourth 1986
- NASA Tech Briefs Journal “Improved Fillets to Withstand Thermal Shocks” July 1997