Ambient conditions impact on combined cycle gas turbine power plant performance

Sammour, Alaa Ahmad; Komarov, O. V.; Qasim, Mohammed; Almalghouj, Samair; Dakkak, Ali Mazen Al; Du, Yang

doi:10.1080/15567036.2023.2172100

Cited by 3 publications

(4 citation statements)

References 19 publications

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“…For the purpose of calculation validation of the obtained results, a comparison was done using operational data [32]. Table 2 gives a comparison between the performance of the gas turbine plant and the results obtained from the model of the current study.…”

Section: Validationmentioning

confidence: 99%

“…A gas turbine (GT) is a heat engine in which hot flue gases, produced by burning fuel, drives a turbine that is used to generate power. Every GT has three basic components, an air compressor, a turbine and combustion chamber [1][2][3][4]. The turbine shaft is connected to a generator, which produces electrical energy through rotation of an electrical generator shaft [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…The fuel type and inlet air ambient conditions impact GT output power. Higher engine performance can be achieved with cooler compressor inlet air as its condition greatly impacts GT performance [1,8,13]. GT performance characteristics, in particular, output power and efficiency, are affected by changes in compressor parameters.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Surrounding Air Temperature and Humidity upon the Performance of a Gas Turbine Power Plant

Alaa Ahmad Sammour,

Oleg V. Komarov,

Farkad A. Lattieff

et al. 2024

ARFMTS

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Nowadays, energy demand continuously rises while energy stocks are dwindling. Using current resources more effectively is crucial for the world. A wide method to effectively utilize energy is to generate electricity using thermal gas turbines (GT). One of the most important problems that gas turbines suffer from is high ambient air temperature especially in summer. The current paper details the effects of ambient conditions on the performance of a gas turbine through energy audits taking into account the influence of ambient conditions on the specific heat capacity ( , isentropic exponent ( ) as well as the gas constant of air . A computer program was developed to examine the operation of a power plant at various ambient temperatures and relative humidities. The ambient temperatures ranged from 0 to 45 ºC, with relative humidities from 10 to 90%. The obtained results show that a GT operated at increased inlet air temperatures is characterized by lower net power and thermal efficiency. At higher inlet air temperatures, increased relative humidity has a slight positive impact on the GT cycle net power and its thermal efficiency. Net output power of the GT decreased from 93.3 MW at 15 °C to 70 MW at 45 °C. Its efficiency decreased from 32.32% at 5 °C to 28.3% at 30 °C. Although fuel consumption is reduced, the heat rate as well and the specific fuel consumption (SFC) are enhanced. SFC increased by 5.36% with a 10 °C temperature rise in temperature at a constant relative humidity. Therefore, use of a gas turbine with inlet air cooling and humidification is appropriate for improved GT efficiency.

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Section: Validationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of Surrounding Air Temperature and Humidity upon the Performance of a Gas Turbine Power Plant

Alaa Ahmad Sammour,

Oleg V. Komarov,

Farkad A. Lattieff

et al. 2024

ARFMTS

View full text Add to dashboard Cite

show abstract

“…A gas turbine is a heat engine in which hot flue gases produced by burning fuel, drive a turbine that is used to generate power. Every GT has three basic components, an air compressor, a turbine and a combustion chamber [1][2][3][4]. The turbine shaft is connected to a generator, which produces electrical energy through the rotation of an electrical generator shaft [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Influence of Ambient Conditions on the Thermodynamic Characteristics of Air as a Working Fluid for Gas Turbines

Sammour

Komarov

Qasim

et al. 2023

ARFMTS

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The study focuses on estimating thermodynamic characteristics at constant pressure for ambient air as a working fluid for gas turbines. The objective of this paper is to carry out a thermodynamic analysis of the properties of air as a working gas for a power plant. Various values of relative humidity, as well as temperatures, were examined in this study. Code was written using EES (Engineering Equations Solver) to conduct the simulation. This code contains the necessary equation to compute the thermodynamic characteristics of the working fluid. According to the results, both temperature and relative humidity remarkably influence the specific heat capacity (C_p), isentropic exponent (γ_h) as well as the gas constant of air (R_h). According to the results, when the ambient air temperature is increased from 0 to 45 ℃ with constant relative humidity values of either 10% or 90%, the specific heat capacity increases by 5.01% and 17.6%, respectively. Furthermore, the isentropic exponent decreases by 1.07% and 4.5%, respectively. The results show that the gas constant of air increases with ambient air temperature and relative humidity. One can conclude that the ambient conditions have considerable influence on the thermodynamic characteristics of a gas turbine working fluid.

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Rated load state performance assessment and analysis of ultra-supercritical coal-fired power plant

Cao,

Ma,

Cheng

et al. 2024

Energy Sources, Part A: Recovery, Utilization, and Environmenta

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Ambient conditions impact on combined cycle gas turbine power plant performance

Cited by 3 publications

References 19 publications

Influence of Surrounding Air Temperature and Humidity upon the Performance of a Gas Turbine Power Plant

Influence of Surrounding Air Temperature and Humidity upon the Performance of a Gas Turbine Power Plant

Investigation of the Influence of Ambient Conditions on the Thermodynamic Characteristics of Air as a Working Fluid for Gas Turbines

Rated load state performance assessment and analysis of ultra-supercritical coal-fired power plant

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