Energy and exergy analyses of Egyptian cement kiln plant with complete kiln gas diversion through by Pass

Farag, L.M.

doi:10.11591/ijaas.v1i1.757

Cited by 6 publications

(8 citation statements)

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“…Existem diversos trabalhos na literatura que aplicam a análise de exergia como metodologia de análise dos processos industriais em fornos rotativos (USTAOGLU et al 2017; ATMACA et al, 2014;GÜRTÜRK & OZTOP, 2014;RENÒ, et al, 2013;FARAG, 2012;ZEKI et al, 2012;SOGUT et al, 2010;RASUL, et al, 2005e ÇAMDALI et al, 2004. A seguir, aspectos relevantes de alguns destes trabalhos são detalhados.…”

Section: Perspectivas Da Ciência E Tecnologia V10 (2018)unclassified

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Análise De Modelos Exergéticos Em Fornos Rotativos Industriais

Turetta¹,

Anacleto²,

Costa³

2018

REPECT

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O setor industrial enfrenta um desafio em relação a sua demanda de energia. Em vista disso, é pertinente o estudo de como é utilizada a energia nos processos industriais. A partir da Primeira e da Segunda Lei da Termodinâmica é possível analisar tais processos, utilizando os balanços de energia e exergia. A análise exergética de um sistema se destaca, visto que a partir dela é possível se determinar onde ocorrem perdas de energia em um processo por irreversibilidades, informação essencial para ser possível otimizar o uso da energia disponível. Contudo, são encontradas na literatura, diferentes metodologias para a análise da exergia de sistemas. Em vista disso, nesteestudo foi realizada uma análise comparativa entre as diferentes abordagens para a análise exergética de fornos rotativos utilizados em processos industriais, equipamento cuja demanda energética é elevada. A revisão permitiu identificar a variabilidade entre modelagens utilizadas para se realizar a análise de exergia em fornos rotativos. Foi possível observar que em geral, a eficiência exergética dos fornos foi inferior à energética. Isso permite inferir que a análise exergética é realmente uma ferramenta mais poderosa para o estudo energético de um sistema.

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Section: Perspectivas Da Ciência E Tecnologia V10 (2018)unclassified

“…As diversas equações para a determinação da eficiência exergética são propostas de acordo o objetivo de cada pesquisa. FARAG et al (2012) e RASUL et al (2005 utilizaram metodologias distintas para o cálculo das eficiências dos fornos rotativos para produção de cimento (Tabela 4).…”

Section: Perspectivas Da Ciência E Tecnologia V10 (2018) Análise Daunclassified

Análise De Modelos Exergéticos Em Fornos Rotativos Industriais

Turetta¹,

Anacleto²,

Costa³

2018

REPECT

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“…A higher exergetic execution of a framework converts into vitality funds and ecological advantages. [15][16][17][18][19][20] There have been many investigations about the cement part. Among them, there are vital and deductive papers, demonstrating both vitality way to deal with the cement industry and the possibilities and methods for development in vitality utilization of cement industry.…”

Section: Thermodynamic Analysis and Optimizationmentioning

confidence: 99%

A Review on Thermodynamics Analysis and Waste Energy Utilization in Cement Industry

Verma¹

2017

IJMPERD

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In India, cement manufacturing process consumes about 15-20% energy among all the energy consuming industries. Reduction in energy consumption in cement production process is the prime concern. Therefore, detailed review on the energy use and reserves is essential to find out energy wastage so that essential actions could be applied to decrease energy consumption. In this paper energy use at different sections of cement industries based on the thermodynamic analysis specially Exergy analysis, alternative fuel used for cement kilns, various energy savings measures were reviewed and presented.

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“…In recent years many studies have been performed by researchers to evaluate the performance of combined cycle power plants (CCPPs) and its subsystems based on concept of energy and exergy [4]- [14]. Boksteen et al [15] performed the second law based analysis with steady state thermodynamic model for KA26 gas turbine combined cycle plant to improve its operational efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…By definition exergy is the amount of maximum work potential for an energy system in relation to its environment through reversible processes [1]. Exergy analysis quantitatively detects and evaluates the thermodynamic inefficiencies of the process under consideration [2], [3].In recent years many studies have been performed by researchers to evaluate the performance of combined cycle power plants (CCPPs) and its subsystems based on concept of energy and exergy [4]- [14]. Boksteen et al [15] performed the second law based analysis with steady state thermodynamic model for KA26 gas turbine combined cycle plant to improve its operational efficiency.…”

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confidence: 99%

Thermodynamic modeling and Exergy Analysis of Gas Turbine Cycle for Different Boundary conditions

Pattanayak¹

2015

IJPEDS

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In this study an exergy analysis of 88.71 MW 13D2 gas turbine (GT) topping cycle is carried out. Exergy analysis based on second law was applied to the gas cycle and individual components through a modeling approach. The analysis shows that the highest exergy destruction occurs in the combustion chamber (CC). In addition, the effects of the gas turbine load and performance variations with ambient temperature, compression ratio and turbine inlet temperature (TIT) are investigated to analyse the change in system behavior. The analysis shows that the gas turbine is significantly affected by the ambient temperature and with increase there is decrease in GT power output. The results of the load variation of the gas turbine show that a reduction in gas turbine load results in a decrease in the exergy efficiency of the cycle as well as all the components. The compressor has the largest exergy efficiency of 92.84% compared to the other component of the GT and combustion chamber is the highest source of exergy destruction of 109.89 MW at 100 % load condition. With increase in ambient temperature both exergy destruction rate and exergy efficiency decreases. Keyword:Ambient INTRODUCTIONConcept of exergy analysis involves both laws of thermodynamics (first and second laws) is an analysis technique applied on energy systems to identify and quantify the amount of thermodynamic adversity involved in the processes and or energy systems. This technique is used as a potential tool to evaluate the thermal performance and efficiency of system and components involve in energy process during design as well as in operation phase. By definition exergy is the amount of maximum work potential for an energy system in relation to its environment through reversible processes [1]. Exergy analysis quantitatively detects and evaluates the thermodynamic inefficiencies of the process under consideration [2], [3].In recent years many studies have been performed by researchers to evaluate the performance of combined cycle power plants (CCPPs) and its subsystems based on concept of energy and exergy [4]- [14]. Boksteen et al. [15] performed the second law based analysis with steady state thermodynamic model for KA26 gas turbine combined cycle plant to improve its operational efficiency. A concept of exergy was used by I.S. Ertesvag et al. [16] to investigate the CO 2 capture in a gas turbine plant. Also the study investigates the effects of change in natural gas composition and ambient temperature. Akbari et al. [17] conducted a parametric study with design parameters to evaluate the performance of CCPP using energy and exergy concept. Ali and Ameri [18] evaluate the system performance of gas turbine power plant for different load and ambient temperature based on energy, exergy and exergoeconomic analysis. performed the exergy analysis of a 116 MW gas turbine power plant based on varying TIT. The

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Energy and exergy analyses of Egyptian cement kiln plant with complete kiln gas diversion through by Pass

Cited by 6 publications

References 0 publications

Análise De Modelos Exergéticos Em Fornos Rotativos Industriais

Análise De Modelos Exergéticos Em Fornos Rotativos Industriais

A Review on Thermodynamics Analysis and Waste Energy Utilization in Cement Industry

Thermodynamic modeling and Exergy Analysis of Gas Turbine Cycle for Different Boundary conditions

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