Investigation of Heat Transfer for Shell-Tube Fuel-Cooled Heat Exchanger

Abstract:

A calculate method based on ε-NTU model for heat transfer characteristics of shell-tube fuel-cooled heat exchanger of aero-engine lubrication system was built. The heat convection coefficient was obtained by a dimensionless curve (Re~StPr^2/3), which was detailed introduced as well. A case study was executed at last. The absolute error of the outlet lubrication of the tube side and the shell side between the value of calculation and experiment was less than ±10°C, and the relative error was less than 6.5%. The absolute error of the heat transferred between calculation and experiment was less than ±0.9kW, and the relative error was less than 7.4%. It indicates that the mothod is available for the investigation of heat transfer characteristics of shell-tube fuel-cooled heat exchanger.

• Periodical: Applied Mechanics and Materials (Volume 378)
• Pages: 459-465
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.378.459
• Online since: August 2013
• Authors: Ya Guo Lu, Peng Fei Zhu
• Keywords: Aero-Engine, Dimensionless Curve, Heat Transfer Characteristic, Shell-Tube Fuel-Cooled Heat Exchanger

References

[1] He Huang, Louis J. Spadaccini, David R. Sobel. Fuel–cooled thermal management for advanced aero engines. Proceedings of ASME TURBO EXPO 2002, June 3-6, 2002, Amsterdam, The Netherlands.

DOI: 10.1115/gt2002-30070

[2] W.M. Kays, A.L. London. Compact Heat Exchangers(3rd ed. ) McGraw-Hill, New York，(1984).

[3] Yang Chunxin, Zhang Lina, Guo Hui. Investigation of Performance of an Engine Oil Cooling System. Journal of Aerospace Power, Vol. 18, No. 6, (2003).

[4] Yang Chunxin, Zhang Lina, Guohui. Method for predicting the performance of oil cooling systems and its application. Journal of Aerospace Power, Vol. 20, No. 2, (2005).

[5] Zhang Xiaowei, Guo Yingqing. Experimental study on the fuel-to-oil heat exchanger used on aero-engines. Machinery design & manufacture, No. 10, (2002).

[6] Li Guoquan, Gao Hongxia, Xing Jun. Investigation of calculation method of fuel-oil radiatior performance curve cluster. Aeroengine, Vol. 35, No. 5. (2009).