Small Organic Rankine Cycle Coupled to Parabolic Trough Solar Concentrator

Caldiño-Herrera, Uzziel; Castro, Laura; Jaramillo, O.A.; García, J. C.; Urquiza, G.; Flores, Francisco Soler

doi:10.1016/j.egypro.2017.09.097

Cited by 23 publications

(6 citation statements)

References 8 publications

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“…Ref. [46] shows that the payback period is about 8.4 years and Ref. [49] about 12 years, values which are also higher than the values of this work.…”

Section: Financial Analysis Environmental Analysis and Further Discus...contrasting

confidence: 74%

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Investigation of a Novel CO2 Transcritical Organic Rankine Cycle Driven by Parabolic Trough Solar Collectors

Bellos

Tzivanidis

2021

ASI

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The objective of the present study is the detailed investigation and optimization of a transcritical organic Rankine cycle operating with CO2. The novelty of the present system is that the CO2 is warmed up inside a solar parabolic trough collector and there is not a secondary circuit between the solar collector and the CO2. Therefore, the examined configuration presents increased performance due to the higher operating temperatures of the working fluid in the turbine inlet. The system is studied parametrically and it is optimized by investigating different pressure and temperature level in the turbine inlet. The simulation is performed with a validated mathematical model that has been developed in Engineering Equation Solver software. According to the results, the optimum turbine inlet temperature is ranged from 713 up to 847 K, while the higher pressure in the turbine inlet enhances electricity production. In the default scenario (turbine inlet at 800 K and turbine pressure at 200 bar), the system efficiency is found 24.27% with solar irradiation at 800 W/m2. A dynamic investigation of the system for Athens (Greece) climate proved that the yearly efficiency of the unit is 19.80%, the simple payback period of the investment is 7.88 years, and the yearly CO2 emissions avoidance is 48.7 tones.

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“…Ref. [46] shows that the payback period is about 8.4 years and Ref. [49] about 12 years, values which are also higher than the values of this work.…”

Section: Financial Analysis Environmental Analysis and Further Discus...contrasting

confidence: 74%

“…Moreover, another work by Bellos and Tzivanidis [44] proved 15.38% system efficiency which is also lower than the present study. In other studies, relatively low system efficiencies have been found such as 8% with PTC-ORC [46,47] and 12.5% [48].…”

Section: Financial Analysis Environmental Analysis and Further Discus...mentioning

confidence: 83%

Investigation of a Novel CO2 Transcritical Organic Rankine Cycle Driven by Parabolic Trough Solar Collectors

Bellos

Tzivanidis

2021

ASI

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“…From the viewpoint of maximum power output, CO 2 emission and economic performance, Sonsaree et al [11] analyzed low temperature solar energy utilization with the ORC system, and compared and evaluated the performance of four different configuration systems. Caldino-Herrera et al [12] designed a small-scale low temperature ORC system coupled to parabolic trough concentrator, in which therminol 55 was regarded as the heat transfer and storage medium. The thermal efficiency and second law efficiency under a specific condition are 8.02% and 57.99%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic Analysis and Comparison of Two Small-Scale Solar Electrical Power Generation Systems

Guo

Meng

et al. 2020

Sustainability

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In this study, two schemes of solar electrical power generation are designed and compared according to solar collection area minimization. The one comprises the parabolic trough collector, dual-tank of molten salt heat storage, and Organic Rankine cycle. The other consists of photovoltaic cell, polymer electrolyte membrane water electrolyzer, and polymer electrolyte membrane fuel cell. The effects of irradiation value, environmental temperature, and energy storage type on thermodynamic performance were investigated. The results indicated that the solar irradiation value had a more obvious effect on the PV (photovoltaic) cell performance than environmental temperature, and the PTC (parabolic trough concentrator) performance was improved with the increases of solar irradiation value and environmental temperature. The environmental temperature effect was negligible; however, the influence of irradiation value was obvious. Irradiation value had a positive effect on the former system, whereas it demonstrated the opposite for the latter. The latter system had much lower efficiency than the former, due to the low conversion efficiency between hydrogen energy and electrical energy in the polymer electrolyte membrane water electrolyzer and fuel cell. Stated thus, the latter system is appropriate for the power generation system with non-energy storage, and the former system is promising in the power generation system with energy storage.

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“…Caldiño-Herrera et al [10] studied a solar PTC system as a heat source of an ORC system. Performance of the system was estimated based on the first and second laws of thermodynamics.…”

Section: Introductionmentioning

confidence: 99%

4E assessment of power generation systems for a mobile house in emergency condition using solar energy: a case study

Refiei

Loni

Najafi

et al. 2020

J Therm Anal Calorim

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Small Organic Rankine Cycle Coupled to Parabolic Trough Solar Concentrator

Cited by 23 publications

References 8 publications

Investigation of a Novel CO2 Transcritical Organic Rankine Cycle Driven by Parabolic Trough Solar Collectors

Investigation of a Novel CO2 Transcritical Organic Rankine Cycle Driven by Parabolic Trough Solar Collectors

Thermodynamic Analysis and Comparison of Two Small-Scale Solar Electrical Power Generation Systems

4E assessment of power generation systems for a mobile house in emergency condition using solar energy: a case study

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