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Research Papers: Gas Turbines: Combustion, Fuels, and Emissions

Study of New Exhaust Ejector for Marine Gas Turbine

[+] Author and Article Information
Tao Sun

Mem. ASME
College of Power and Energy Engineering,
Harbin Engineering University,
Harbin, Heilongjian 150001, China
e-mail: Heu_jf@163.com

Nan Ye

College of Power and Energy Engineering,
Harbin Engineering University,
Harbin, Heilongjian 150001, China
e-mail: 52685438@qq.com

Yuehan Xu

College of Power and Energy Engineering,
Harbin Engineering University,
Harbin, Heilongjian 150001, China
e-mail: 44702091@qq.com

Guohui Wang

College of Power and Energy Engineering,
Harbin Engineering University,
Harbin, Heilongjian 150001, China
e-mail: 453895000@qq.com

Minghui Yuan

College of Power and Energy Engineering,
Harbin Engineering University,
Harbin, Heilongjian 150001, China
e-mail: 617871483@qq.com

Contributed by the Combustion and Fuels Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received March 11, 2015; final manuscript received April 23, 2015; published online June 9, 2015. Editor: David Wisler.

J. Eng. Gas Turbines Power 137(12), 121505 (Jun 09, 2015) (8 pages) Paper No: GTP-15-1088; doi: 10.1115/1.4030516 History: Received March 11, 2015

With the development at infrared guidance weapon, the survival of the ship, especially in high risk areas, is facing serious challenges. In order to improve its survival ability, infrared suppression system emerges. Marine gas turbine exhaust ejector system is its core component, which is responsible for reducing or even eliminating the infrared radiation signal of marine gas turbine exhaust system. Based on collecting data on many sorts of ejectors, we sort out literature related to gas turbine exhaust ejector. From the view of ejector structure, the paper briefly describes the development of gas turbine exhaust ejector used on ships in domestic and foreign. Put forward two major structural innovations: the structure of nozzle changes from circular to rectangular and diffuser adopts multilevel structure. A new type of marine gas turbine exhaust ejector was designed. Ejector model is simplified. Use numerical simulation method to predict the single-stage ejector and multistage ejectors. Further structural optimization plan and design can be made based on this essay.

Copyright © 2015 by ASME
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References

Birk, A. M. , and Davis, W. R. , 1989, “Suppressing the Infrared Signatures of Marine Gas Turbine,” ASME J. Eng. Gas Turbines Power, 111(1), pp. 123–129. [CrossRef]
Birk, A. M. , and Vandam, D. , 1994, “Infrared Signature Suppression for Marine Gas Turbines: Comparison of Sea Trail and Model Test Results for the DRES Ball IRSS System,” ASME J. Eng. Gas Turbines Power, 116(1), pp. 75–81. [CrossRef]
Asim, Maqsood , and Birk, A. M. , 2005, “Experimental and CFD Study of Exhaust Ejectors With Bent Mixing Tubes,” ASME Paper No. GT2005-68597.
Bottenheim, S. , Birk, A. M. , and Poirier, D. J. , 2004, “Performance of a Longitudinal-to-Slot Gas Turbine Exhaust Duct With a 90 Degree Bend,” ASME Paper No. GT2004-53373.
Qi Chen , and Birk, A. M. , 2007, “Experimental and CFD Study of an Exhaust Ejector With Round Entraining Diffuser,” ASME Paper No. GT2007-27643.
Asim Maqsood , and Birk, A. M. , 2007, “Effect of a Bend on the Performance of an Oblong Ejector,” ASME Paper No. GT2007-27851.
Du, Z. , and Zhong, F. , 1997, “Numerical Calculation and Experimental Study of the Marine Gas Turbine Exhaust Infrared Suppression System,” Therm. Power Eng., 12, pp. 41–44.
Li, D. , Wang, L. , Wen, X. , and Cao, S. , 2002, “Numerical Calculation and Experimental Study of the Marine Gas Turbine Exhaust Ejectors,” Therm. Power Eng., 17, pp. 226–230.
Wang, X. , 2005, “Research and Application of Gas Turbine With Ultra-Short Exhaust Injector High Speed Ship,” Vessel, 5, pp. 35–40.
Asim, Maqsood , 2008, “A Study of Subsonic Air–Air Ejectors With Short Bent Mixing Tubes,” Ph.D. thesis, Department of Mechanical and Materials Engineering, Queen's University, Kingston, Canada.

Figures

Grahic Jump Location
Fig. 1

New exhaust ejector structure

Grahic Jump Location
Fig. 2

New exhaust ejector structure

Grahic Jump Location
Fig. 3

Internal fluid flow

Grahic Jump Location
Fig. 15

Structure diagram of multistage ejector

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