Economic and exergoeconomic investigation of 660 MW coal-fired power plant

Nikam, Keval Chandrakant; Jilte, Ravindra

doi:10.1007/s10973-020-10213-z

Cited by 24 publications

(9 citation statements)

References 46 publications

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“…The data of 1990 is used as the standard benchmark, and the calculation process is shown in Eqn. 13. Where NEP(m) represents the value after the standardization of the potential value of the mth environmental impact, and ER(m) represents the standardized benchmark.…”

Section: Life Cycle Environmental Impact Assessmentmentioning

confidence: 99%

“…The electricity generation efficiency of the USC-CCS power plant is reduced by approximately 9.5% compared to the USC-power plant (45.5%) [8]. The cost of electricity (COE) of the USC-CCS power plant would be increased by 44% compared with the USC-power plant [13]. IGCC power plant with CO2 capture uses pre-combustion capture technology, in which CO2 is removed from the syngas (water gas shift reaction is required: CO+H2O=CO2+H2) before combustion.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Life cycle energy-economy-environmental evaluation of coal-based CLC power plant vs. IGCC, USC and oxy-combustion power plants with/without CO2 capture

Zhao

Duan

Qian

et al. 2021

Journal of Environmental Chemical Engineering

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Section: Life Cycle Environmental Impact Assessmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Life cycle energy-economy-environmental evaluation of coal-based CLC power plant vs. IGCC, USC and oxy-combustion power plants with/without CO2 capture

Zhao

Duan

Qian

et al. 2021

Journal of Environmental Chemical Engineering

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“…Steam turbine operation in various power plants strongly differs. They can dominantly operate by using wet or superheated steam [23,24], they can be composed of one or more turbine cylinders [25,26], turbine cylinders can be single flow or dual flow (while dual flow cylinders can be symmetrical or asymmetrical) [27], turbine cylinders can be connected to the same or to the various shafts [28,29], steam turbines are nowadays dominantly composed of many stages (however, still in exploitation can be found steam turbines with only one stage used for various auxiliary purposes) [30,31], turbine stages can be of impulse, reaction or Curtis type [32], temperature and pressure of steam delivered to any steam turbine can significantly vary [33,34]. Therefore, observations which pointed out that any steam turbine operates in a same manner is valid only in the most general and overall form.…”

Section: Introductionmentioning

confidence: 99%

The influence of various optimization algorithms on nuclear power plant steam turbine exergy efficiency and destruction

et al. 2021

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This paper presents an exergy analysis of the whole turbine, turbine cylinders and cylinder parts in four different operating regimes. Analyzed turbine operates in nuclear power plant while three of four operating regimes are obtained by using optimization algorithms – SA (Simplex Algorithm), GA (Genetic Algorithm) and IGSA (Improved Genetic-Simplex Algorithm). IGSA operating regime gives the highest developed mechanical power of the whole turbine equal to 1022.48 MW, followed by GA (1020.06 MW) and SA (1017.16 MW), while in Original operating regime whole turbine develop mechanical power equal to 996.29 MW. In addition, IGSA causes the highest increase in developed mechanical power of almost all cylinders and cylinder parts in comparison to the Original operating regime. All observed optimization algorithms increases the exergy destruction of the whole turbine in comparison to Original operating regime - the lowest increase causes IGSA, followed by GA and finally SA. The highest exergy efficiency of the whole turbine, equal to 85.92% is obtained by IGSA, followed by GA (85.89%) and SA (85.82%), while the lowest exergy efficiency is obtained in Original operating regime (85.70%). Analyzed turbine, which operates by using wet steam is low influenced by the ambient temperature change. IGSA, which shows dominant performance in exergy analysis parameters of the analyzed turbine, in certain situations is overpowered by GA. Therefore, in optimization of steam turbine performance, IGSA and GA can be recommended.

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“…Similary, Ahmedi et al [ 22 ] used the exergetic analysis as a strong tool to evaluate the performance of a vacuum evaporator for solar thermal power plant zero liquid discharge systems. Exergoeconomic analysis emerges as a correct method not only for renewable energy sources but also for the use of conventional energy sources [ 23 ]. In their other studies, Ahmedi et al performed techno-economic and environmental analysis of a parabolic trough concentrating photovoltaic/thermal system [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

Exergoeconomic analysis of photovoltaic thermal systems based on phase change materials and natural zeolites for thermal management

Kandilli

Uzel

2021

J Therm Anal Calorim

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Conventional photovoltaic thermal (PVT) systems provide unstable thermal energy, which changes throughout the day. In PVT systems, phase change materials (PCMs) and heat storage materials could be used to make thermal energy more stable and provide longer-term thermal energy. In the present study, exergoeconomic analysis of PVT systems integrated with natural zeolites has been firstly carried out, and the results were compared with the results of PVT systems integrated with PCM and conventional one. PVT systems integrated with paraffin and stearic acid, common PCMs and conventional PVT systems were analyzed by specific exergy costing method, systems were compared exergoeconomically and suggestions were made to improve the economic performance of PVT systems. As a result of the analyzes conducted with 297 data obtained experimentally, the average energy efficiencies were calculated as 33%, 40%, 37% and 32% for paraffin, natural zeolite, stearic acid and conventional PVT system, respectively. Besides, average exergy efficiencies were 24%, 24%, 22% and 22% for paraffin, zeolite, stearic acid and conventional PVT system, respectively. The average entropy generation of the PVT based paraffin; natural zeolite, stearic acid and conventional one were found as 2.11, 2.29, 2.18 and 2.07 W K −1 , respectively. According to the exergoeconomic analysis, specific exergy flow cost values were found as 0.206, 0.176, 0.204 and 0.206 € kWh −1 for the PVTs based on paraffin, natural zeolite, stearic acid and the conventional PVT. It was concluded that the natural zeolite-based PVT system was found as the best system exergoeconomically.

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Economic and exergoeconomic investigation of 660 MW coal-fired power plant

Cited by 24 publications

References 46 publications

Life cycle energy-economy-environmental evaluation of coal-based CLC power plant vs. IGCC, USC and oxy-combustion power plants with/without CO2 capture

Life cycle energy-economy-environmental evaluation of coal-based CLC power plant vs. IGCC, USC and oxy-combustion power plants with/without CO2 capture

The influence of various optimization algorithms on nuclear power plant steam turbine exergy efficiency and destruction

Exergoeconomic analysis of photovoltaic thermal systems based on phase change materials and natural zeolites for thermal management

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