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TECHNICAL PAPERS

Thermodynamic Analyses of Wet Compression Process in the Compressor of Gas Turbine

[+] Author and Article Information
Qun Zheng, Yufeng Sun, Shuying Li, Yunhui Wang

Harbin Engineering University, Harbin 150001, China

J. Turbomach 125(3), 489-496 (Aug 27, 2003) (8 pages) doi:10.1115/1.1575254 History: Received January 10, 2002; Online August 27, 2003
Copyright © 2003 by ASME
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References

“LM6000 Spring Design Enhanced to Increase Power and Efficiency,” 2000, Gas Turbine World, July–Aug., pp. 16–19.
Rising, B., and Hitzel, R., 2000, “Wet Compression Upgrade Technology: Operating Experience,” Power-Gen Europe Conference.
Aagren, N. D., Cavani, A., and Westermark, M. O., 1997, “New Humidifier Concept in Evaporative Gas Turbine Cycles,” Proc., TAIES’97, pp. 270–276.
De Lucia,  M., Bronconi,  R., and Carnevale,  E., 1994, “Performance and Economic Enhancement of Cogeneration Gas Turbines Through Compressor Inlet Air Cooling,” ASME J. Eng. Gas Turbines Power, 116, pp. 360–365.
El-Awad, M. M., 2000, “A Thermodynamic Comparison of Gas-turbine Power Augmentation by Inlet-air Cooling and Steam Injection,” Proc., Int. Conference on Fluid and Thermal Energy Conversion, Bandung, Indonesia.
De Lucia, M., and Carnevale, E., 2001, “Gas Turbine Inlet Air Cooling System Increases Performance of a Natural Gas Injection Station,” Energy-Tech.
Nagoya, K. K., 1997, “Guidance & Propulsion Systems Works,” Mitsubishi Heavy Industries Technical Review.
De Lucia, M., Lanfranchi, C., and Boggio, V., 1995, “Benefits of Compressor Inlet Air Cooling for Gas Turbine Cogeneration Plants,” 95-GT-311.
Takizawa, M., Ohara, H., and Morikawa, K., 1993, “Repowering of Thermal Power Plants as Fully-Fired Combined Cycle Generating Plants,” 93-GT-473.
Zheng, Q., Sun, Y., et al., 1997, “Experiments on Water Spraying Internal Cooling in Compressor of Gas Turbine,” 97-GT-158.
Chai, Y., 1995, Two-Phase Flows in Steam Turbine, Xi’an Jiaotong University Press.
Hinds, W. C., 1999, Aerosol Technology: Properties, Behavior, and Measurement of Airborne Particles, Wiley, John & Sons Inc., New York, NY.

Figures

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Exit temperatures of ideal wet compression and dry air compression processes
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t2di, t2d, t2w, t2wi are compressor exit temperatures of ideal dry air compression, dry air compression, wet compression, and ideal wet compression, respectively
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Actual and isentropic compression works of dry air and wet compression (evaporative rate is dw/dt=7.5e-4)
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Actual and isentropic compression works of dry air and wet compression (evaporative rate is dw/dt=3.5e-4)
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Actual and isentropic compression works of dry air and wet compression (evaporative rate is dw/dt=1.5e-4)
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Wet compression work variation with evaporative rates—(a) compression ratio pi=7, (b) compression ratio pi=30
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Compressor inlet temperature after inlet evaporative cooling
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Evaporative amount of water (g/kgDA) need for inlet cooling
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Efficiencies of wet compression process
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p-v diagram of compression processes
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T-S diagram of compression processes
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T-S diagram of isentropic wet compression process—1–2s dry air isentropic compression process, 1–2k wet air isentropic compression process
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Droplet diameter under different environmental pressure
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Breaking time of water droplets in high-speed airflow and velocity gradient

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