Thermodynamic analysis of reheat cycle steam power plants

Dinçer, İbrahim; Al-Muslim, Husain

doi:10.1016/s0140-6701(02)86312-3

Cited by 43 publications

(58 citation statements)

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“…One of the technologies adopted nowadays for improvement is the combined cycle. Hence, it is expected that the combined cycle continues to gain acceptance throughout the world as a reliable, flexible and efficient base load power generation [1]. Combined-cycle systems utilizing the Brayton Cycle gas turbine and the Rankine Cycle steam system with air and water as working fluids achieve efficient, reliable, and economic power generation.…”

Section: IImentioning

confidence: 99%

Energy Analysis of Combined Cycle Power Plant Using First Law of Thermodynamics

Baghel¹

2018

IJRASET

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This paper gives a detailed explanation about the exergy analysis and the energy efficiencies of a combined cycle power plant. Energy analysis of an active CCPP (Combined Cycle Power Plant) is performed with the help of the actual operating data taken from the computer control unit of the plant. For the thermo dynamical performance assessment of the plant, energy analysis, related with the first law of thermodynamics is performed.

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Section: IImentioning

confidence: 99%

Energy Analysis of Combined Cycle Power Plant Using First Law of Thermodynamics

Baghel¹

2018

IJRASET

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“…The optimization of Rankine cycles has been widely studied [16,17]. Dias and others optimized the second-generation ethanol production [18], while other authors focused on obtaining the economical optima [19].…”

Section: Numerical Optimizationmentioning

confidence: 99%

Challenges in Bioenergy Production from Sugarcane Mills in Developing Countries: A Case Study

2014

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Worldwide energy policies are moving towards a reduction of fossil fuels' share in the energy mix and to invest in renewable and green energy sources. Biomass is one of these, and it represents, in the form of sugarcane, a strategic source in Colombia, especially in the Valle del Cauca. In this region, the sugarcane industry is able to convert the energy content of the cane into different energy products, such as ethanol, electricity, and high-pressure steam, which are cogenerated via bagasse combustion. In this work, the case of a sucrose and ethanol production plant, which mills ten thousand tons of sugarcane per day, is considered. A tailor-made computational model was developed to assess the energy and material process balances in order to estimate the effect of different operating conditions on cogeneration boilers and turbines, and to optimize the overall process efficiency. The current situation was modeled with good precision from the developed model. Likewise, the concept of "Renewable Efficiency" was introduced to explain the degree of green power, which a process plant is able to produce. Consequently, new innovative solutions and process layouts were proposed in order to increase their renewable efficiency. With the new configurations, a convenient energy surplus of up to 33 MW can be reached, which could be sold in the national electricity grid, representing long-term interesting economic benefits for the company. OPEN ACCESSEnergies 2014, 7 5875

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“…For a mixture of gases, the molar chemical exergy can be expressed as: (4) where is its mole fraction in the mixture and the molar chemical exerg ies of the individual gases, are g iven in literature [13,18].…”

Section: Chemical Exergy Of Streamsmentioning

confidence: 99%

“…Th e co mp arison o f coal-fired and nuclear steam power plants using energy and exerg y an alyses to id en tify areas with p oten tial fo r performance imp rovement has b een invest igated [15]. A thermodynamic analysis of a Rankine cycle reheat steam power plant was carried out to study the energy and exergy efficiencies at d ifferent operating conditions of boiler temperature, boiler pressure, mass fraction ratio and work output from the cycle [4]. Exergy and cost balances have been used to study gas-turbine cogeneration system [10].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Throughput on Thermodynamic Efficiencies of a Thermal Power Plant

Anozie¹,

Ayoola²

2012

IJEE

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This study carried out energy and exergy analyses of a thermal power plant in order to evaluate the energetic and exergetic efficiencies and irreversibilities of units, sections and the overall system. It was also, to determine the optimu m fuel-air rat io and optimu m co mbustion temperature at different throughputs. The thermal p lant consisting of 23 units and 4 sections was simulated using HYSYS simu lation software and EXCEL spreadsheet. The EXCEL spreadsheet was used for the energy and exergy analyses. It was found that throughput did not influence the energy efficiencies of the units but the exergy efficiencies. Throughput did not influence the energy and exergy efficiencies of the sections. The overall energetic efficiencies of the p lant were 18.17, 19.79, 21.42, and 21.45% and the overall exergetic efficiencies were 10.26, 11.22, 11.58, and 11.61% for throughputs of 50, 75, 100 and 110%, respectively. The overall irreversibilities of the plant increased as the throughput increased. The optimu m fuel-to-air ratio which gave the optimu m co mbustion temperature in the furnace was found to be 1:12.6 for all the throughputs which was an improvement over the current practice of 1:19.8. Throughput did not influence the maximu m co mbustion temperature in the fu rnace.

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Thermodynamic analysis of reheat cycle steam power plants

Cited by 43 publications

References 0 publications

Energy Analysis of Combined Cycle Power Plant Using First Law of Thermodynamics

Energy Analysis of Combined Cycle Power Plant Using First Law of Thermodynamics

Challenges in Bioenergy Production from Sugarcane Mills in Developing Countries: A Case Study

The Influence of Throughput on Thermodynamic Efficiencies of a Thermal Power Plant

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