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Research Papers: Gas Turbines: Marine

Feasibility Study of an Intercooled-Cycle Marine Gas Turbine

[+] Author and Article Information
Wen Xue-you, Xiao Dong-ming

 Harbin Marine Boiler and Turbine Research Institute, No. 108 Hongqi Avenue Harbin China, Harbine, Heilongjiang 150036, China

J. Eng. Gas Turbines Power 130(2), 022201 (Mar 04, 2008) (6 pages) doi:10.1115/1.2799526 History: Received April 28, 2007; Revised June 06, 2007; Published March 04, 2008

From the perspective of an overall entity we analyzed the performance obtainable from the adoption of an intercooled-cycle gas turbine under different typical cycle parameters of a gas turbine. On this basis, a study was conducted of the conversion of a high-power simple-cycle marine gas turbine (MGT-33) into a type of intercooled-cycle marine gas turbine. The precondition of the conversion is to keep the flow path and the majority of the structure of the original engine gas generator unchanged in order to inherit the reliability of the prototype machine. The results of the study indicate that after the adoption of an intercooled cycle under the precondition of performing minimum structure modifications and maintaining the compactness of the engine as a whole, there is still a significant enhancement of the gas turbine overall performance with its power output and efficiency being increased by about 34% and 4.1%, respectively, demonstrating the merits of the engineering conversion under discussion.

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Copyright © 2008 by American Society of Mechanical Engineers
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Figures

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Figure 1

Trend of the change in power output and efficiency of high-power marine gas turbines

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Figure 2

IC cycle schematic drawing

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Figure 3

Impact of intercooling on engine efficiency

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Figure 4

Impact of intercooling on engine specific work

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Figure 5

Overall performance curves of a simple cycle and an intercooled one

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Figure 6

Impact of intercooling on compressor outlet temperature

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Figure 7

Schematic drawings of MGT-33 and CGT-IC

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Figure 8

Power output and SFC performance

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