Parametric optimization of the semi-closed oxy-fuel combustion combined cycle

Kindra, Vladimir; Kaplanovich, I B; Smirnov, Maksim; Naumov, Vladimir; Zonov, A.

doi:10.1088/1742-6596/1683/5/052028

Cited by 5 publications

(4 citation statements)

References 10 publications

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“…The combined cycle facility performances are comparable with those of oxy-fuel, but the latter has much better environmental performance. The calculations were carried out in the Thermaflow software package, and a description of the parametric optimization technique is presented in [35].…”

Section: Methods For the Financial Feasibility Study Of Oxy-fuel Power Facilities Constructionmentioning

confidence: 99%

“…This cycle is a Brayton-Rankine combined cycle with oxy-fuel oxidation and dioxide recirculation (Figure 7). At the working fluid turbine inlet temperature of 1300 • C, this cycle's energy supply efficiency is below 45% [35,39]. In this cycle the gas fuel and high-purity oxygen mixture is supplied into the combustion chamber (CC) at the stoichiometric ratio.…”

Section: Principal Heat Flow Schemes Of Oxy-fuel Combustion Thermodynamic Cyclesmentioning

confidence: 99%

mentioning

confidence: 95%

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Techno-Economic Analysis of the Oxy-Fuel Combustion Power Cycles with Near-Zero Emissions

et al. 2021

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This paper is devoted to improvement of environmental safety in hydrocarbon-firing TPPs. Despite the development of renewable power sources, the number of traditional power production facilities continues its growth. The toxic emission mitigation in traditional TPPs has been deeply investigated, but the problem of greenhouse gas atmospheric emissions is of topical interest. Oxy-fuel technology reduces CO2 emissions and is highly efficient and environmentally safe. Also, it requires relatively low capital investments. Thermal efficiency analysis shows that the Allam cycle facilities have the best efficiency. Their thermodynamic parameters can be optimized with minimal primary costs and capital investments. This newly developed analysis was used to compare the investment efficiency of projects for the buildup of oxy-fuel and combined cycle facilities. Without emission quote payments, the NPV of combined cycle projects is 16% higher, as well as having a lower DPP. The electricity production primary costs in oxy-fuel and combined cycle facilities are similar, which reflects the technologies’ similarity and similar fuel costs. Implementation of carbon dioxide emission quote marketing makes oxy-fuel facilities more investment-attractive. Parametric studies show that when Russia implements CO2 emission quotes compatible with the current EU level, an oxy-fuel facility erection project will be financially reasonable. Thus, it can be concluded that the construction of oxy-fuel power plants is one of the most promising and investment-attractive solutions to reduce CO2 emissions in the energy sector for large industrialized countries. The managerial consequences of their implementation will include the stabilization of greenhouse gas emissions while ensuring the financial stability of the energy industry.

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Section: Methods For the Financial Feasibility Study Of Oxy-fuel Power Facilities Constructionmentioning

confidence: 99%

Section: Principal Heat Flow Schemes Of Oxy-fuel Combustion Thermodynamic Cyclesmentioning

confidence: 99%

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Techno-Economic Analysis of the Oxy-Fuel Combustion Power Cycles with Near-Zero Emissions

et al. 2021

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“…The bench working area parameters must be selected taking into account the similarity criteria determined in the full-scale combustion chamber. The results of a three-dimensional numerical simulation of a combustion chamber with a capacity of 105 MW were adopted as full-scale conditions [22] . The simulation was carried out in the Ansys Fluent solver.…”

Section: Determination Of Similarity Criteria Values In Ofpg Combusti...mentioning

confidence: 99%

Investigation of the parameters influence of the oxy-fuel burner and the test bench parameters on the deviation of the model similarity criterions from the full-scale values

Osipov,

Komarov,

Zlyvko

et al. 2024

Appl. Chem. Eng.

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The article presents the results of a study of the workflow parameters influence in the full-scale and model burners of the combustion chamber oxy-fuel combined cycle on the deviation of similarity criteria from full-scale values. The variable parameters are the pressure and velocity of the fluid under model conditions, as well as the power of model and full-scale burners. The supercritical parameters of the working fluid in the cylindrical sections of the combustion zone at a pressure of 30 MPa and a temperature of 1570 ℃ were taken as full-scale conditions. In this paper, the dependences of the deviations of hydrodynamic and thermophysical similarity criteria on the speed and pressure of the combustion products of an oxygen-fuel mixture with carbon dioxide in the working zone of the test bench for burners are obtained. The parameters of the working fluid and the power of model burners are obtained, at which the values of the criteria deviations are minimal.

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Intensification, optimization and economic evaluations of the CO2-capturing oxy-combustion CO2 power system integrated with the utilization of liquefied natural gas cold energy

Ong

Chen

2021

Energy

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Parametric optimization of the semi-closed oxy-fuel combustion combined cycle

Cited by 5 publications

References 10 publications

Techno-Economic Analysis of the Oxy-Fuel Combustion Power Cycles with Near-Zero Emissions

Techno-Economic Analysis of the Oxy-Fuel Combustion Power Cycles with Near-Zero Emissions

Investigation of the parameters influence of the oxy-fuel burner and the test bench parameters on the deviation of the model similarity criterions from the full-scale values

Intensification, optimization and economic evaluations of the CO2-capturing oxy-combustion CO2 power system integrated with the utilization of liquefied natural gas cold energy

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