General performance evaluation method of integrated solar combined cycle (ISCC) system

Zhang, Zuxian; Duan, Liqiang; Wang, Zhen; Ren, Yujie

doi:10.1016/j.energy.2021.122472

Cited by 16 publications

(5 citation statements)

References 29 publications

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“…The net solar thermal energy conversion ratio and the energy efficiency reached 14 and 56.06%, with natural gas consumption savings representing around $30 million. Finally, in 2022, different basic ISCC system models were compared with SEGS and gas turbine combined cycles (GTCC), presenting a method for assessing ISCC systems with different integration modes and solar operating temperatures [21]. Different integration points in the steam and gas cycles, as well as two working modes, "power boosting" and "fuel saving" were discussed.…”

Section: Solar Integration In Combined Power Plants and Research Ques...mentioning

confidence: 99%

Integration of Solar Field into a Combined Cycle Power Plant for Fuel Saving in Insular Subtropical Climates

Meana-Fernández

Abdelhalim

Suarez-Ramon

2023

36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 20

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The harmful environmental effects of fossil fuels and the variability in their prices are shifting attention away from conventional combined cycle power plants. Supply issues in islands are also a problem to be considered. The objective of this work is to evaluate the feasibility of integrating solar energy into a combined cycle power plant for fuel saving in insular subtropical climates. With this aim, a case study comprising a 93 MW combined cycle in Las Palmas de Gran Canaria (Spain) and the integration of solar energy in the gas upper cycle has been presented and analyzed with a thermodynamic model. The effects of incorporating solar heat before and after the cycle compressor were assessed, finding that injecting 35 MW of solar heat before the compressor resulted in savings of 49% of the original fuel consumption and an increase of 2% in the global cycle efficiency, but at the expense of reducing the net power delivered by 47%. On the other hand, incorporating the solar heat after the compression process resulted in an overall 16.2% increase in the cycle efficiency, while delivering the same net power as the original cycle and reducing fuel consumption in 22%. With the increase in the amount of solar heat added to the cycle, the difference between both options became greater, with the best option being injecting solar heat after the compressor. Estimations of the economic and environmental effects of the most suitable option are provided, resulting in potential overall savings of 7.14 million Euro per year and a yearly potential of 13.75 Mkg of CO2 emissions avoided. The results of this work are expected to contribute to improve energy supply problems by using a renewable energy source and reduce fuel imports, providing more energy stability and security to the inhabitants of islands with similar climates as Las Palmas.

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Section: Solar Integration In Combined Power Plants and Research Ques...mentioning

confidence: 99%

Integration of Solar Field into a Combined Cycle Power Plant for Fuel Saving in Insular Subtropical Climates

Meana-Fernández

Abdelhalim

Suarez-Ramon

2023

36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 20

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“…Huang et al [31] simulated combined cooling, heating and power systems during off-design conditions and adopted the IF97 model. Zhang et al [32] similarly used the IF97 model while simulating integrated solar combined cycle systems. Several steam plant simulation studies do not declare which medium model they adopted for steam and water thermodynamics, but still ought to be mentioned.…”

Section: Literature Reviewmentioning

confidence: 99%

A fast and accurate modeling approach for water and steam thermodynamics with practical applications in district heating system simulation

Hinkelman

Anbarasu

Wetter

et al. 2022

Energy

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“…The results showed that the use of fossil fuels is reduced while an ISCC power station is in operation, resulting in lower emissions of greenhouse gases. Zhang et al [18] proposed a general performance assessment approach for the ISCC system and examined the system's fuel-saving and efficiency promotion factors. Hosseini et al [19] suggested the optimal design plan for Iran's first solar power plant.…”

Section: Introductionmentioning

confidence: 99%

Exergoeconomic Analysis of an Integrated Solar Combined Cycle in the Al-Qayara Power Plant in Iraq

Talal

Akroot

2023

Processes

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Enhancing the sustainability and diversification of Iraq’s electricity system is a strategic objective. Achieving this goal depends critically on increasing the use of renewable energy sources (RESs). The significance of developing solar-powered technologies becomes essential at this point. Iraq, similar to other places with high average direct normal irradiation, is a good location for concentrated solar thermal power (CSP) technology. This study aims to recover the waste heat from the gas turbine cycle (GTC) in the Al-Qayara power plant in Iraq and integrate it with a solar power tower. A thermoeconomic analysis has been done to support the installation of an integrated solar combined cycle (ISCC), which uses concentrated solar tower technology. The results indicate that the examined power plant has a total capacity of 561.5 MW, of which 130.4 MW is due to the waste heat recovery of G.T.s, and 68 MW. is from CSP. Due to the waste heat recovery of GTC, the thermal and exergy efficiencies increase by 10.99 and 10.61%, respectively, and the overall unit cost of production is 11.43 USD/MWh. For ISCC, the thermal and exergy efficiencies increase by 17.96 and 17.34%, respectively, and the overall unit cost of production is 12.39 USD/MWh. The integrated solar combined cycle’s lowest monthly capacity was about 539 MW in September, while its highest monthly capacity was approximately 574.6 MW in April.

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General performance evaluation method of integrated solar combined cycle (ISCC) system

Cited by 16 publications

References 29 publications

Integration of Solar Field into a Combined Cycle Power Plant for Fuel Saving in Insular Subtropical Climates

Integration of Solar Field into a Combined Cycle Power Plant for Fuel Saving in Insular Subtropical Climates

A fast and accurate modeling approach for water and steam thermodynamics with practical applications in district heating system simulation

Exergoeconomic Analysis of an Integrated Solar Combined Cycle in the Al-Qayara Power Plant in Iraq

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