Performance improvement of the bottoming steam Rankine cycle (SRC) and organic Rankine cycle (ORC) systems for a triple combined system using gas turbine (GT) as topping cycle

Köse, Özkan; Koç, Yıldız; Yağlı, Hüseyin

doi:10.1016/j.enconman.2020.112745

Cited by 85 publications

(25 citation statements)

References 60 publications

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“…The syngas is fired with air as the oxidant in the combustion chamber. The flue gas produced by the combustion process enters the second turbine (Turbine 2) and expands to produce electricity (process [11][12]. The outlet flue gas of the second-stage turbine at state 12 is delivered to the air preheater (regenerator), where it is cooled by transferring its energy to the air flow (process 12-13).…”

Section: System Descriptionmentioning

confidence: 99%

“…The reaction process is considered to be at the equilibrium condition, and equilibrium constraints for Equations (10) and (11) are presented as [31]:…”

Section: Ex I D )mentioning

confidence: 99%

“…They also carried out optimization and employed evolutionary algorithms to determine the optimum design parameters. Köse et al [11] investigated the utilization of the steam Rankine cycle and organic Rankine cycle (ORC) as the bottoming cycle of the gas turbine. They performed a parametric optimization to analyze the effects of the various working fluids in the ORC subsystem.…”

Section: Introductionmentioning

confidence: 99%

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Performance Analysis of a New Electricity and Freshwater Production System Based on an Integrated Gasification Combined Cycle and Multi-Effect Desalination

et al. 2020

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Integrated biomass gasification combined cycles can be advantageous for providing multiple products simultaneously. A new electricity and freshwater generation system is proposed based on the integrated gasification and gas turbine cycle as the main system, and a steam Rankine cycle and multi-effect desalination system as the waste heat recovery units. To evaluate the performance of the system, energy, exergy, and economic analyses were performed. Also, a parametric analysis was performed to assess the effects of various parameters on the system’s performance criteria. The economic feasibility of the plant was analyzed in terms of net present value. For the base case, the performance metrics are evaluated as Wnet=8.347 MW, ε=46.22%, SUCP=14.07 $/GJ, and mfw=11.7 kg/s. Among all components of the system, the combustion chamber is the greatest contributor to the exergy destruction rate, at 3250 kW. It is shown with the parametric analysis that raising the combustion temperature leads to higher electricity and freshwater production capacity. For a fuel cost of 2 $/GJ and an electricity price of 0.07 $/kWh, the total net present value at the end of plant’s lifespan is 6.547×106 $, and the payback period is 6.75 years. Thus, the plant is feasible from an economic perspective.

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Section: System Descriptionmentioning

confidence: 99%

“…The reaction process is considered to be at the equilibrium condition, and equilibrium constraints for Equations (10) and (11) are presented as [31]:…”

Section: Ex I D )mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance Analysis of a New Electricity and Freshwater Production System Based on an Integrated Gasification Combined Cycle and Multi-Effect Desalination

et al. 2020

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“…Therefore, ORCs can be used to recover low-temperature heat sources (80 °C and above) [13,14]. In addition to the availability of ORC for a wide range of heat sources, ORC systems have the advantages of easy construction, simple configuration, cheaper investment and almost zero maintenance costs when compared with other low-temperature additional power systems [15,16]. Therefore, there are many theoretical and experimental studies aimed at improving overall system performance by integrating ORC with various-temperature waste heat sources [16,17].…”

Section: Introductionmentioning

confidence: 99%

Deep neural network approach to estimation of power production for an organic Rankine cycle system

Mert

Bilgiç

Yağlı

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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“…Worldwide, electricity demand is forecasted to increase by 70% by the year 2030 1 and 15% of the total electricity produced globally is consumed by refrigeration 2 . However, the production of electricity comes from the combustion of fossil fuels leading to depletion of their reserves and the degradation of the environment 3‐5 . To curb these issues, various alternative thermally activated refrigeration systems have been proposed viz.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic analysis of simple and modified organic Rankine cycle and vapor compression refrigeration (ORC–VCR) systems

Ashwni

Sherwani

Tiwari

2020

Env Prog and Sustain Energy

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This paper compares the thermodynamic performance of two ORC–VCR systems using the zeotropic mixture (Hexane/R245fa); one is a simple ORC–VCR system whereas the second one is a modified ORC–VCR system. Both ORC–VCR systems are different in terms of VCR sub‐cycle. The modified ORC–VCR system contains an additional flash tank, expansion valve, and compressor compared to the simple ORC–VCR system in the VCR sub‐cycle. The thermodynamic performance of the systems have been evaluated in terms of Cooling capacity (Qevap), Coefficient of performance of the system (COPs), exergetic efficiency (ηex), and cost function (UAtot) . Modified ORC–VCR system exhibits 23.4, 23.4, 29.00, and 41% enhancement in cooling capacity (Qevap), COPs, exergetic efficiency (ηex), and cost function (UAtot), respectively, compared to the simple system. Moreover, there is 4, 5, and 84.73% enhancement in Qevap at the mass fraction of 0.9, COPs at the mass fraction of 0.6, and ηex at the mass fraction of 0.5 for the modified ORC–VCR system with the use of the zeotropic mixture.

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Performance improvement of the bottoming steam Rankine cycle (SRC) and organic Rankine cycle (ORC) systems for a triple combined system using gas turbine (GT) as topping cycle

Cited by 85 publications

References 60 publications

Performance Analysis of a New Electricity and Freshwater Production System Based on an Integrated Gasification Combined Cycle and Multi-Effect Desalination

Performance Analysis of a New Electricity and Freshwater Production System Based on an Integrated Gasification Combined Cycle and Multi-Effect Desalination

Deep neural network approach to estimation of power production for an organic Rankine cycle system

Thermodynamic analysis of simple and modified organic Rankine cycle and vapor compression refrigeration (ORC–VCR) systems

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