On thermo-economic optimization effects in the balance price-demand of generation electricity for nuclear and fossil fuels power plants

Valencia-Ortega, G.; Parga-Regalado, A.M. Ares de; Barranco-Jiménez, M. A.

doi:10.1007/s12667-022-00537-0

Cited by 5 publications

(8 citation statements)

References 29 publications

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“…which can be interpreted as the fraction of the power plant's running costs that corresponds to fuel. In a similar way, a fractional cost associated with O&M can be defined as follows [41] ( )…”

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confidence: 99%

“…Based on the original classification of De Vos [24], in [41] it was proposed that f and g should be bounded so that 0 < h = f + g < 1. Furthermore, f and g should be selected depending on the type of energy source being used.…”

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confidence: 99%

“…and that by increasing the value of h, that is, letting the cost of operation and maintenance reach higher values, the power plant will be more efficient [25,41]. Note that if h = 0, it implies that bQ 1 + cW = 0.…”

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confidence: 99%

“…In this paper, we will not show the analytical expressions for the economically optimal efficiencies, nor will we go into the methods to obtain them. First, they have already been calculated in [25,41], and the expressions and procedures are extensive. Second, in the following section, we will use a more straightforward system carefully selected to understand the mathematical problem better.…”

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confidence: 99%

“…where Ôf can be replaced with either of the functions in (44), depending on the desired operating mode. Before describing the process to compute the optimal chemical efficiencies, it is helpful to write down the equivalent quantities to the fuel fractional cost and the O&M one given in ( 23) and (24) as follows [22,41] ˆˆˆˆˆ( ) The correspondent parameter ĥ can be built and it is given by ˆˆˆˆ( ) ˆ( )…”

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confidence: 99%

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Optimal efficiencies of an isothermal endoreversible chemical engine

Parga-Regalado¹

2023

Eur. J. Phys.

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In the context of finite-time thermodynamics, an instructive study of the thermodynamic and thermoeconomic optimization analysis of Novikov engine models is presented. The so-called objective functions of the maximum power, ecological and efficient power regimes of operation are introduced. The study addresses the optimization methodology to obtain the efficiencies that maximize the various functions. An isothermal chemical engine is used as an analogy to Novikov’s engine to demonstrate the physical and mathematical procedures. Didactically, new results are presented through expanding prior research.

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confidence: 99%

Section: = + + +mentioning

confidence: 99%

Section: = + + +mentioning

confidence: 99%

Section: = + + +mentioning

confidence: 99%

Section: = +mentioning

confidence: 99%

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Optimal efficiencies of an isothermal endoreversible chemical engine

Parga-Regalado¹

2023

Eur. J. Phys.

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Thermoeconomic analysis and environmental impact assessment of the Akkuyu nuclear power plant

Saylan,

Aygün

2024

J Therm Anal Calorim

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Within the scope of this study, a thermoeconomic analysis was carried out for Akkuyu Nuclear Power Plant (ANPP), the first nuclear power plant of Türkiye. As a result of the analysis, it is aimed to reduce the cost of energy production and prevent thermal pollution at the same time by converting the heat discharged into the environment into useful heat due to the working principle of NPP. Thermodynamic analysis was performed in the Engineering Equation Solver (EES) program using equipment values equivalent to ANPP. Cost analysis was performed using the specific exergy costing (SPECO) method, which is based on the second law of thermodynamics and is the most widely used cost analysis method. The study concludes that the energy efficiency is 35%, while the economic analysis shows that the best case has an exergy efficiency of 68% with a payback period of 7–8 years, and an electricity cost of $0.0196 per kWh. It is possible to use the heat discharged from the plant indirectly in district heating (heating, hot water needs of the lodgings, guesthouses in the facility), greenhouse heating, agricultural drying and heating, considering the geographical conditions and livelihood of the region. Thus, 68% of the waste heat was utilized, the unit cost of the energy produced was reduced and at the same time thermal pollution was reduced at the same rate. The results of the study can contribute to the efforts preventing energy waste, thermal environmental pollution, and reducing greenhouse gas emissions. Additionally, it could aid in the development of more energy-efficient and environmentally friendly power generation systems, including pioneering nuclear power plants in developing countries.

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