Optimum design of impingement cooling system using differential evolution algorithm in the 2D-Nozzle linear of a turbofan engine

Authors

Faculty of Mechanics, Malek Ashtar University of Technology, Isfahan, Iran

10.22044/jsfm.2024.13436.3770

Abstract

The inlet temperature to the nozzle of the turbine engine is one of the most influential parameters in increasing the thrust, Therefore it is necessary to use methods to increase the inlet temperature of the nozzle. impingement cooling is one of these methods, which by passing cooler air and then passing through jets, hits the hot wall of the nozzle and causes the heat of the nozzle wall to be absorbed. In this article, the optimization of impingement cooling system has been investigated in three dimensions. The studied geometry is the end walls of the nozzle, which is in the form of a flat plate. This plate includes cooling holes with a circular cross-section. The optimum design is to find the diameter and distances between of the holes. With coupling of software and the code developed with C programming language, different geometries for hole optimization are generated automatically by determining the appropriate constraints and the design is optimized. The optimization is multi-objective and the optimization algorithm is differential evolution. The goal of optimization is to reach a relatively uniform temperature and also temprature lower than the maximum temperature allowed in the nozzle wall. The results of multi-objective optimization are presented as a Pareto front.

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References

[1]  Buzzard, W.C., et al., (2017) Influences of target surface small-scale rectangle roughness on impingement jet array heat transfer. Int. J. Heat Mass Tra,. 110: p. 805-816.
[2]  El-Gabry, L.A. and D.A. Kaminski, (2005) Experimental investigation of local heat transfer distribution on smooth and roughened surfaces under an array of angled impinging jets.
[3]  Xing, Y., S. Spring, and B. Weigand, (2011) Experimental and numerical investigation of impingement heat transfer on a flat and micro-rib roughened plate with different crossflow schemes. Int. J. Therm. Sci., 50(7): p. 1293-1307.
[4]  Florschuetz, L.W., R. Berry, and D. Metzger, (1980) Periodic streamwise variations of heat transfer coefficients for inline and staggered arrays of circular jets with crossflow of spent air.
[5]  Florschuetz, L., C. Truman, and D. Metzger. Streamwise (1981) flow and heat transfer distributions for jet array impingement with crossflow. in Turbo Expo: Power for Land, Sea, and Air. American Society of Mechanical Engineers.
[6]  Han, B. and R.J. Goldstein, (2001) Jet‐impingement heat transfer in gas turbine systems. Annals of the New York Academy of Sciences, 934(1): p. 147-161.
[7]  Weigand, B. and S. Spring. (2009) Multiple jet impingement− a review. in TURBINE-09. Proceedings of international symposium on heat transfer in gas turbine systems. Begel House Inc.
[8]  Spring, S., Y. Xing, and B. Weigand, (2012) An experimental and numerical study of heat transfer from arrays of impinging jets with surface ribs.
[9]  Brakmann, R., et al., (2016) Experimental and numerical heat transfer investigation of an impinging jet array on a target plate roughened by cubic micro pin fins. J. Turbomachinery, 138(11): p. 111010.
[10] Andrews, G.E., R. Abdul Hussain, and M. Mkpadi, (2003) Enhanced impingement heat transfer: Comparison of co-flow and cross-flow with rib turbulators. Proceedings of IGTC2003.
[11] Son, C., P. Ireland, and D. Gillespie.(2005) The effect of roughness element fillet radii on the heat transfer enhancement in an impingement cooling system. in Turbo Expo: Power for Land, Sea, and Air.
[12] Terzis, A., (2016) On the correspondence between flow structures and convective heat transfer augmentation for multiple jet impingement. Experiments in Fluids: p. 1-14.
[13] Terzis, A., et al., (2016) Aerothermal investigation of a single row divergent narrow impingement channel by particle image velocimetry and liquid crystal thermography. J. Turbomachinery, 138(5): p. 051003.
[14] Terzis, A., et al., (2014) Detailed heat transfer distributions of narrow impingement channels for cast-in turbine airfoils. J. Turbomachinery, 136(9): p. 091011.
 
[15] Mazaheri, K., M. Zeinalpour, and H. Bokaei, (2016)Turbine blade cooling passages optimization using reduced conjugate heat transfer methodology. Applied Thermal Engineering, 103: p. 1228-1236.
[16] Mazaheri, K., H.R. Bokaei, and M. Zeinalpour, (2015) Multi-objective optimization of internal cooling passages for a turbine blade. Modares Mechanical Engineering,. 15(8): p. 351-359.
[17] Flynt, G.A., K. Sreenivas, and R.S. Webster, (2013) Computation of heat transfer in turbine rotor blade cooling channels with angled rib turbulators, THE UNIVERSITY OF TENNESSEE AT CHATTANOOGA.
[18] Ruiz, J.D., (2008) Thermal design optimization of multi-passage internally cooled turbine blades. ProQuest.
[19] Munson, B., D. Young, and T. Okiishi, (1998) Fundamentals of fluid mechanics.
[20] Xing, Y., S. Spring, and B. Weigand, (2010) Experimental and numerical investigation of heat transfer characteristics of inline and staggered arrays of impinging jets.
Journal of Solid and Fluid Mechanics
Volume 14, Issue 2
May and June 2024
Pages 31-43

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