Exergoeconomic analysis of a combined cycle system utilizing associated gases from steel production process based on structural theory of thermoeconomics

Yao, Hua; De-ren, Sheng; Chen, Jianhong; Li, Wei; Wan, Anping; Chen, Hui

doi:10.1016/j.applthermaleng.2012.09.019

Cited by 24 publications

(6 citation statements)

References 30 publications

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“…The constants used in these cost functions may be different due to variation in Dollar price, but in the parametric-based exergoeconomic analysis, the results of variation in the equipment capital cost with a change in the operating parameters will show the same behavior. Therefore, in some recent papers similar cost functions are adopted from the works appeared even in the late 1960s [18,19]. Using Eq.…”

Section: Exergoeconomic Analysismentioning

confidence: 99%

Parametric based thermo-environmental and exergoeconomic analyses of a combined cycle power plant with regression analysis and optimization

Memon

Harijan

et al. 2015

Energy Conversion and Management

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Section: Exergoeconomic Analysismentioning

confidence: 99%

Parametric based thermo-environmental and exergoeconomic analyses of a combined cycle power plant with regression analysis and optimization

Memon

Harijan

et al. 2015

Energy Conversion and Management

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“…The calculation formula of the equipment investment cost is selected from [27][28][29][30]. Using the above equations, the investment costs of each piece of equipment in the system can be obtained, as shown in Table 3.…”

Section: Thermoeconomic Cost Equationsmentioning

confidence: 99%

Thermoeconomic Optimization of Steam Pressure of Heat Recovery Steam Generator in Combined Cycle Gas Turbine under Different Operation Strategies

Wang

Duan

2021

Energies

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The optimization of the steam parameters of the heat recovery steam generators (HRSG) of Combined Cycle Gas Turbines (CCGT) has become one of the important means to reduce the power generation cost of combined cycle units. Based on the structural theory of thermoeconomics, a thermoeconomic optimization model for a triple pressure reheat HRSG is established. Taking the minimization of the power generation cost of the combined cycle system as the optimization objective, an optimization algorithm based on three factors and six levels of orthogonal experimental samples to determine the optimal solution for the high, intermediate and low pressure steam pressures under different gas turbine (GT) operation strategies. The variation law and influencing factors of the system power generation cost with the steam pressure level under all operation strategies are analyzed. The research results show that the system power generation cost decreases as the GT load rate increases, T4 plays a dominant role in the selection of the optimal pressure level for high pressure (HP) steam and, in order to obtain the optimum power generation cost, the IGV T3-650-F mode should be adopted to keep the T4 at a high level under different GT load rates.

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“…This criterion has been used by Ye and Li [ 11 ] and is equivalent to the criterion frequently used to allocate the cost of residues proportionally to entropy or negentropy generation along the processes of productive components [ 2 , 3 , 6 , 16 , 27 , 29 ]. In this approach, the productive purpose of the dissipative components of a system is to generate negentropy to compensate the entropy generation in the productive components.…”

Section: Exergetic Cost Analysismentioning

confidence: 99%

“…In this approach, the productive purpose of the dissipative components of a system is to generate negentropy to compensate the entropy generation in the productive components. In this way, the environment produces the negentropy necessary to bring the exhaust gases into equilibrium with the ambient, the condenser also generates negentropy by decreasing the steam entropy to reach the saturated liquid condition, and the HRSG generates negentropy for the combustion gases and entropy for the steam [ 29 ].…”

Section: Exergetic Cost Analysismentioning

confidence: 99%

An Irreversibility-Based Criterion to Determine the Cost Formation of Residues in a Three-Pressure-Level Combined Cycle

Méndez

González

Hernández

et al. 2020

Entropy

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In an energy system, it is important to identify the origin of residue formation in order to implement actions to reduce their formation or to eliminate them as well as to evaluate their impact on the production costs of the system. In the exergetic cost theory, although there are several criteria to allocate the cost formation of residues to the productive components, no unique indication on the best choice has been defined yet. In this paper, the production exergy costs are determined by allocating the residue cost formation to the irreversibilities of the productive components from which they originate. This criterion, based on the Gouy–Stodola theorem, is an extension of the criterion of entropy changes, and unlike this, it avoids the existence of a negative production cost. This criterion is applied to a combined cycle of three pressure levels, and the production exergy costs are compared with the criteria of entropy changes, distributed exergy, and entropy. The results of the proposed criterion are in agreement with the compared criteria.

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Exergoeconomic analysis of a combined cycle system utilizing associated gases from steel production process based on structural theory of thermoeconomics

Cited by 24 publications

References 30 publications

Parametric based thermo-environmental and exergoeconomic analyses of a combined cycle power plant with regression analysis and optimization

Parametric based thermo-environmental and exergoeconomic analyses of a combined cycle power plant with regression analysis and optimization

Thermoeconomic Optimization of Steam Pressure of Heat Recovery Steam Generator in Combined Cycle Gas Turbine under Different Operation Strategies

An Irreversibility-Based Criterion to Determine the Cost Formation of Residues in a Three-Pressure-Level Combined Cycle

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