Variable geometry gas turbines for improving the part-load performance of marine combined cycles – Combined cycle performance

Variable geometry gas turbines for improving the part-load performance of marine combined cycles... The part-load performance of combined cycles intended for naval use is of great importance, and it is influenced by the gas turbine configuration and load control strategy. This paper is aimed at quantifying the effects of variable geometry gas turbines on the part-load efficiency for combined cycles used for ship propulsion. Moreover, the paper is aimed at developing methodologies and deriving models for part-load simulations suitable for energy system analysis of various components within combined cycle power plants. Two different gas turbine configurations are studied, a two-shaft aero-derivative configuration and a single-shaft industrial configuration. The results suggest that by the use of variable geometry gas turbines, the combined cycle part-load performance can be improved. In order to minimise the voyage fuel consumption, a combined cycle featuring two-shaft gas turbines with VAN control is a promising alternative for container ships, while a cycle with single-shaft gas turbine configurations with VGV control is indicated to be an equally good choice for tankers and carriers. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Thermal Engineering Elsevier

Variable geometry gas turbines for improving the part-load performance of marine combined cycles – Combined cycle performance

Applied Thermal Engineering, Volume 31 (4) – Mar 1, 2011

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Publisher
Elsevier
Copyright
Copyright © 2010 Elsevier Ltd
ISSN
1359-4311
eISSN
1873-5606
D.O.I.
10.1016/j.applthermaleng.2010.09.029
Publisher site
See Article on Publisher Site

Abstract

The part-load performance of combined cycles intended for naval use is of great importance, and it is influenced by the gas turbine configuration and load control strategy. This paper is aimed at quantifying the effects of variable geometry gas turbines on the part-load efficiency for combined cycles used for ship propulsion. Moreover, the paper is aimed at developing methodologies and deriving models for part-load simulations suitable for energy system analysis of various components within combined cycle power plants. Two different gas turbine configurations are studied, a two-shaft aero-derivative configuration and a single-shaft industrial configuration. The results suggest that by the use of variable geometry gas turbines, the combined cycle part-load performance can be improved. In order to minimise the voyage fuel consumption, a combined cycle featuring two-shaft gas turbines with VAN control is a promising alternative for container ships, while a cycle with single-shaft gas turbine configurations with VGV control is indicated to be an equally good choice for tankers and carriers.

Journal

Applied Thermal EngineeringElsevier

Published: Mar 1, 2011

References

  • Variable geometry gas turbines for improving the part-load performance of marine combined cycles – gas turbine performance
    Haglind, F.

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