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TECHNICAL PAPERS: Gas Turbines: Electric Power

Gas Turbine Test Parameters Corrections Including Operation With Water Injection

[+] Author and Article Information
K. Mathioudakis

Laboratory of Thermal Turbomachines, National Technical University of Athens, P.O. Box 64069, Athens 15710, Greece

J. Eng. Gas Turbines Power 126(2), 334-341 (Jun 07, 2004) (8 pages) doi:10.1115/1.1691443 History: Received December 01, 2001; Revised March 01, 2002; Online June 07, 2004
Copyright © 2004 by ASME
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References

Figures

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Power and heat rate dependence on ambient temperature
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Power and exhaust gases mass flow rate. Dependence on ambient pressure.
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Dependence of power and efficiency on ambient humidity
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Dependence of EGT and exhaust gases mass flow rate con ambient temperature
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Use of test data to verify base load and peak load conditions. (indicates specified limit values).
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Efficiency versus power, to check values at a specific load. Dry operation. ( indicates specified lower limit values).
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Typical form of power and efficiency variations in function of the amount of injected water
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Comparing water flow rates to guaranteed values. Load points A–50%, B–75%, C–100%(1), D–100%(2). (indicates specified limit values).
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Efficiency versus power for different amounts of injected water. (indicates specified lower limit values).
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Water-to-fuel ratio for the points of Fig. 9
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Power output versus TIT for different amounts of injected water
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Efficiency versus TIT for different amounts of injected water
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Power output and efficiency variation in function of water-to-fuel ratio, at full-load turbine inlet temperature
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Layout of gas turbine for heat balance calculations. Quantities measured during performance testing are contained in boxes with callouts at measuring location.
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Block diagram for writing equations (a) compressor, (b) turbine, (c) combustor
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Compressor operating point for dry and wet operation and its movement for a change in ambient temperature (constant mechanical speeds)
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Fractional change of power and efficiency for dry and wet operation of a single-shaft gas turbine

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