Exergy and economic assessments of solar organic Rankine cycle system with linear V-Shape cavity

Ardeh, E. Askari-Asli; Loni, Reyhaneh; Najafi, Gholamhassan; Ghobadian, Barat; Bellos, Evangelos; Wen, Dongsheng

doi:10.1016/j.enconman.2019.111997

Cited by 22 publications

(7 citation statements)

References 49 publications

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“…The ratio of the collecting area to the storage tank is found to be 11.43 m 2 /m 3 in the overall optimum case. This value is different compared to another previous study of the same research team where this ratio was found 80 m 2 /m 3 [15]. There are many reasons for this difference in the found values.…”

contrasting

confidence: 88%

“…The optimum ratio of the collecting area to storage tank volume was found at 80 m 2 /m 3 , and, for this case, the system efficiency is 13.46% and the payback period is at 9 years. Askari-Asli Ardeh et al [15] examined a PTC with a V-shape cavity coupled to an ORC. They found that this unit is able to lead to a payback period lower than 9 years and to a system efficiency of about 25% in optimal design.…”

Section: Introductionmentioning

confidence: 99%

“…This work uses 12 typical days for simulation all the year, while the analysis of Ref. [15] used four typical days. Moreover, there are some different points in the design of the ORC and of the storage tank modeling that can lead to different results.…”

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confidence: 99%

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Financial Optimization of a Solar-Driven Organic Rankine Cycle

Bellos

Tzivanidis

2020

ASI

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The objective of this work is the financial optimization of a solar-driven organic Rankine cycle. Parabolic trough solar collectors are used as the most mature solar concentrating system and also there is a sensible storage system. The unit is examined for the location of Athens in Greece for operation during the year. The analysis is conducted with a developed dynamic model in the program language FORTRAN. Moreover, a developed thermodynamic model in Engineering Equation Solver has been used in order to determine the nominal efficiency of the cycle. The system is optimized with various financial criteria, as well as with energy criteria. The optimization variables are the collecting area and the storage tank volume, while the nominal power production is selected at 10 kW. According to the final results, the minimum payback period is 8.37 years and it is found for a 160 m2 collecting area and a 14 m3 storage tank, while for the same design point the levelized cost of electricity is minimized at 0.0969 € kWh−1. The maximum net present value is 123 k€ and it is found for a 220-m2 collecting area and a 14-m3 storage tank volume. Moreover, the maximum system energy efficiency is found at 15.38%, and, in this case, the collecting area is 140 m2 and the storage tank volume 12 m3. Lastly, a multi-objective optimization proved that the overall optimum case is for a 160-m2 collecting area and a 14-m3 storage tank.

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confidence: 88%

Section: Introductionmentioning

confidence: 99%

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Financial Optimization of a Solar-Driven Organic Rankine Cycle

Bellos

Tzivanidis

2020

ASI

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“…They showed that increasing the efficiency of the system is viable with increasing the incoming solar radiation and the inlet temperature of the fluid as well as the decrease of fluid flow rate. They calculated the lowest levelized cost of electricity (LCOE), the lowest payback period, and the number of years for the optimum condition of the developed solar‐organic Rankine cycle system 18 …”

Section: Introductionmentioning

confidence: 99%

“…They calculated the lowest levelized cost of electricity (LCOE), the lowest payback period, and the number of years for the optimum condition of the developed solar-organic Rankine cycle system. 18 Based on the above-reviewed research, it seems a more comprehensive study of combined Rankine organic cycles with solar PV systems could be valuable to designers of utility scale solar systems. In the present research, energy, and economic analyses of three power generation plants, including a PV, a CPV, and an integrated CPV/T with a Rankine organic cycle plant were carried out in different parts of Iran.…”

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Energy and economic analysis of photovoltaic, concentrating photovoltaic, and combined concentrating photovoltaic/ thermal‐organic Rankine cycle power plants in Iran

Dogahe

Javaran

Abdolzadeh

2021

Environ Prog Sustainable Energy

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In this study, energy and economic analyses of three small-scale solar power plants were conducted in various parts of Iran. The power plants were polycrystalline photovoltaic (PV), concentrating photovoltaic (CPV), and combined concentrating photovoltaic/thermal (CPV/T) and Rankine organic cycle (ORC). Electricity productions for the PV and CPV power plants were initially obtained. The electricity generation from the combined CPV/T and ORC power plant was then calculated and compared with the other two plants studied. In addition, an economic analysis of all the plants studied was also conducted. All calculations have been performed using in-house computer code written in MATLAB software. Results showed that the CPV and CPV/T and ORC plants are most suitable for those regions of Iran where the global annual horizontal solar energy is more than 1900 and 2000 kWh/m 2 , respectively. In these regions, the CPV and CPV/T and ORC plants generate up to 200% of the electrical energy generated by the PV plant. Based on the current feed-in tariff for photovoltaic systems in Iran, the economic analysis suggests that when the land costs are not a major concern in all the plants under consideration, the CPV and CPV/T and ORC plants are mainly profitable in the regions where the annual horizontal solar energy is more than 1900 kWh/m 2 .

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A study of effects on economic indicators for different heat source temperature on thermal storage‐based solar organic Rankine cycle system

Baral

2020

Engineering Reports

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The solar organic Rankine cycle (ORC) system for power generation with thermal storage type may be one of the promising technologies for prolonging power generation. The thermal storage type of solar ORC system is feasible for investment due to higher power production. In addition, the heat source temperature of the ORC system plays an important role in the investment. The main aim of the study is to investigate the solar ORC with thermal storage systems from the thermoeconomic point of view. The paper provides recommendations for a suitable class of investment in which an ORC system can be economically feasible.Besides, the economics and thermoeconomic analysis is carried out in order to find the cost of electricity production from the solar ORC under various solar source temperatures. The cost of electricity generation is found to be in the range of $0.2/kWh to $0.6/kWh for 120 • C and 90 • C, respectively. For analysis, different financial scenarios are developed based on the total cost of the solar ORC units. The economic parameters, such as payback period, internal rate of return (IRR) and specific investment cost, are calculated. The payback period is found to be less than 6 years for the thermal storage type of solar ORC system with the IRR to be 15%. This shows that the investment is feasible for medium and large scale solar ORC with thermal storage systems.

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Exergy and economic assessments of solar organic Rankine cycle system with linear V-Shape cavity

Abstract: This is a repository copy of Exergy and economic assessments of solar organic Rankine cycle system with linear V-Shape cavity.

Cited by 22 publications

References 49 publications

Financial Optimization of a Solar-Driven Organic Rankine Cycle

Financial Optimization of a Solar-Driven Organic Rankine Cycle

Energy and economic analysis of photovoltaic, concentrating photovoltaic, and combined concentrating photovoltaic/ thermal‐organic Rankine cycle power plants in Iran

A study of effects on economic indicators for different heat source temperature on thermal storage‐based solar organic Rankine cycle system

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