Analytical modeling of wet compression of gas turbine systems

Kim, Kyoung Hoon; Ko, Hyung–Jong; Perez-Blanco, Horacio

doi:10.1016/j.applthermaleng.2010.11.002

Cited by 38 publications

(32 citation statements)

References 6 publications

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“…In this work heat and mass fluxes on the surface of spherical water droplets are expressed with Stokes model as follows [24]:…”

Section: System Analysismentioning

confidence: 99%

“…The solution can be approximated by using the temperature-averaged constant c wet and temperature-averaged polytropic coefficient n wet as [24]:…”

Section: System Analysismentioning

confidence: 99%

“…Wet compression in gas turbines has been thoroughly investigated by many researchers as Zheng et al [16], White and Meacock [17], Kim and Perez-Blanco [18], Perez-Blanco et al [19], Bracco et al [20], Roumeliotis and Mathioudakis [21], Jonsson et al [22], Goldborough et al [23]. Kim et al [24] developed a modeling for the transient operations for the non-equilibrium wet compression process based on droplet evaporation and obtained the analytic expressions with algebraic equations as solutions. Due to compression with intercooling, overspray inlet cooling can increase power more than inlet fogging.…”

Section: Introductionmentioning

confidence: 99%

“…In this study exergy analysis of the overspray process occurring in both inlet fogging and wet compression is carried out by using an analytical modeling based on combination of droplet evaporation and mean-line calculation [17,24]. The goal of the study is to investigate the potentials of gas turbine systems with overspray fogging, which can be applied to generic compressors.…”

Section: Introductionmentioning

confidence: 99%

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Exergy Analysis of Overspray Process in Gas Turbine Systems

Kim

2012

Energies

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Gas turbine power can be augmented by overspray process which consists of inlet fogging and wet compression. In this study exergy analysis of the overspray process in gas turbine system is carried out with a non-equilibrium analytical modeling based on droplet evaporation and the second law of thermodynamics. This work focuses on the effects of system parameters such as pressure ratio, water injection ratio, and initial droplet diameter on exergetical performances including irreversibility and exergy efficiency of the process. The process performances are also estimated under the condition of saturated water injection ratio above which complete evaporation of injected water droplets within a compressor is not possible. The results show that the irreversibility increases but the saturated irreversibility decreases with increasing initial droplet diameter for a specified pressure ratio.

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“…In this work heat and mass fluxes on the surface of spherical water droplets are expressed with Stokes model as follows [24]:…”

Section: System Analysismentioning

confidence: 99%

“…The solution can be approximated by using the temperature-averaged constant c wet and temperature-averaged polytropic coefficient n wet as [24]:…”

Section: System Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Exergy Analysis of Overspray Process in Gas Turbine Systems

Kim

2012

Energies

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“…Gas turbines are the most important pivotal rotating machines belonging to the family of internal combustion engines that are used intensively in oil and gas industrial plants. Indeed, it is used to achieve the main function of generating mechanical energy in form of shaft rotation from kinetic energy of gases produced in the combustion chamber (Djaidir et al, 2015(Djaidir et al, , 2016Djeddi et al, 2015Djeddi et al, , 2016Eshati et al, 2013;Jurado and Carpio, 2006;Kim et al, 2011). However, these machines are subject to some phenomena inducing important vibrations that can be very critical to their mechanical state.…”

Section: Introductionmentioning

confidence: 99%

Faults detection in gas turbine rotor using vibration analysis under varying conditions

Djaidir

Hafaifa

Kouzou

2017

jtam

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Monitoring of rotating machines is a very important task in most industrial sectors, which requires a chosen number of performance indicators during the exploitation of such kind of equipments. Indeed, for understanding the undesirable phenomena complexity of the industrial systems under operation, a reliable and an accurate mathematical modeling is required to ensure the diagnosis and the control of these phenomena. This work proposes development of a fault monitoring system of a gas turbine type GE MS 3002 based on vibration analysis technique using spectral analysis tools. The obtained results prove the effectiveness of the presented monitoring tool approach which is applied on the gas turbine, for avoiding the operation under vibration mode and for generating optimal performance during the exploitation of the gas turbine.

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