Thermal and optical efficiency investigation of a parabolic trough collector

Tzivanidis, Christos; Bellos, Evangelos; Korres, Dimitrios N.; Antonopoulos, K.A.; Mitsopoulos, Georgios

doi:10.1016/j.csite.2015.10.005

Cited by 175 publications

(50 citation statements)

References 45 publications

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“…The available solar beam irradiation in the collector module is the product of its aperture area (A a ) and of the direct beam solar irradiation (G b ), as Eq. 1 shows [7,9]:…”

Section: Mathematical Backgroundmentioning

confidence: 99%

“…The heat transfer coefficient is estimated using the mean fluid temperature (T fm ) and the mean absorber temperature (T r ), as Eq. 7 shows [7,9]:…”

Section: (D) Convergence Goals and Outputsmentioning

confidence: 99%

“…This software has been used in the simulation of solar collectors [7,[25][26][27][28][29], as well as in other simulation studies [30][31][32][33][34]. In Solidworks Flow Simulation environment, the proper boundary conditions, radiation surfaces, mesh, convergence goals and materials as well as working fluids have to be defined.…”

Section: Analysis In Solidwork Flow Simulationmentioning

confidence: 99%

“…It is essential to state that the mean fluid temperature is estimated according to the following equation [7,9]:…”

Section: (D) Convergence Goals and Outputsmentioning

confidence: 99%

“…Among them, solar energy is the most promising energy source, because it can be converted either to electricity by photovoltaics or concentrating power plants, or to thermal energy by solar thermal collectors (flat or concentrating) [5,6]. Parabolic trough collectors (PTC) is the most mature technology for producing heat in medium and high temperature levels and this has been applied in a great number of applications up today [7]. The use of PTC in concentrating power plants, in industrial processes, in hydrogen production and in other similar high temperature applications is more and more usual the last years [8].…”

Section: Introductionmentioning

confidence: 99%

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Energetic and exergetic investigation of a parabolic trough collector with internal fins operating with carbon dioxide

Bellos

Tzivanidis

Daniil

2017

Int J Energy Environ Eng

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The objective of this study is to determine the energetic and exergetic enhancement of parabolic trough collector with internal fins in the absorber. Carbon dioxide is the examined working fluid to investigate the performance of the system in high temperature levels. In the first part of this study, the impact of the mass flow rate on the collector performance is analyzed and finally 0.20 kg/s is selected as the most appropriate mass flow rate exergetically. In the second part, the impact of internal fins on the system performance is investigated for operation with the optimum mass flow rate. More specifically, the absorber without fins is compared with three different fins with lengths 5, 10 and 15 mm. The final results prove that the higher fin length increases the thermal performance, while the optimum fin length exergetically is 10 mm with 45.95% exergetic efficiency when the inlet temperature is equal to 400°C. The impact of the pressure losses along the collector is taken into account in the exergetic efficiency, which is the best index for evaluating solar collectors operating with gases. The analysis is performed with Solidworks Flow Simulation, a powerful tool which allows the simultaneous thermal and optical analysis.

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“…The available solar beam irradiation in the collector module is the product of its aperture area (A a ) and of the direct beam solar irradiation (G b ), as Eq. 1 shows [7,9]:…”

Section: Mathematical Backgroundmentioning

confidence: 99%

“…The heat transfer coefficient is estimated using the mean fluid temperature (T fm ) and the mean absorber temperature (T r ), as Eq. 7 shows [7,9]:…”

Section: (D) Convergence Goals and Outputsmentioning

confidence: 99%

Section: Analysis In Solidwork Flow Simulationmentioning

confidence: 99%

“…It is essential to state that the mean fluid temperature is estimated according to the following equation [7,9]:…”

Section: (D) Convergence Goals and Outputsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Energetic and exergetic investigation of a parabolic trough collector with internal fins operating with carbon dioxide

Bellos

Tzivanidis

Daniil

2017

Int J Energy Environ Eng

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Modeling and Simulation of Hybrid Solar and Biomass Thermal Power Plant

2018

A Polygeneration Process Concept for Hybrid Solar and Biomass Power Plant: Simulation, Modelling and Optimization

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Performance of oil‐based thermal storage system with parabolic trough solar collector using Al ₂ O ₃ and soybean oil nanofluid

Kalbande

Walke

Rambhad

2021

Intl J of Energy Research

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Oil-based thermal energy storage system with solar collector has become populous due to its simple design and characteristics. Majorly, the solar-based thermal storage systems operate between 70 C and 150 C temperature, with one disadvantage of inability to store energy during off-peak hours. The stored energy in thermal storage can be used for the different domestic applications, such as water heating, cooking of food, boiling, etc. An effort has been made to investigate the oil-based thermal energy storage system with the potential design to achieve the higher temperature range of above 200 C. These systems can be used for domestic applications such as cooking. The integrated thermal storage system has been developed using nitrate salt as phase changing material to store the latent heat. The phase change material is filled in the cavity of the oil-based thermal storage. The aluminum oxide (Al 2 O 3 ) and soybean oil nanofluid in a thermo-syphon is used as a heat transfer fluid to store and transfer the sensible heat. Parabolic trough solar collector is coupled with thermal storage system. The maximum temperature of the phase change material, during the experiment, in thermal storage system was achieved up to 220 C, which is the melting point of phase change material. The mathematical model for the heat transfer analysis is also developed and the results were validated with the experimental results. The various heat transfer analysis using regression analysis is discussed.

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Thermal and optical efficiency investigation of a parabolic trough collector

Cited by 175 publications

References 45 publications

Energetic and exergetic investigation of a parabolic trough collector with internal fins operating with carbon dioxide

Energetic and exergetic investigation of a parabolic trough collector with internal fins operating with carbon dioxide

Modeling and Simulation of Hybrid Solar and Biomass Thermal Power Plant

Performance of oil‐based thermal storage system with parabolic trough solar collector using Al ₂ O ₃ and soybean oil nanofluid

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Thermal and optical efficiency investigation of a parabolic trough collector

Cited by 175 publications

References 45 publications

Energetic and exergetic investigation of a parabolic trough collector with internal fins operating with carbon dioxide

Energetic and exergetic investigation of a parabolic trough collector with internal fins operating with carbon dioxide

Modeling and Simulation of Hybrid Solar and Biomass Thermal Power Plant

Performance of oil‐based thermal storage system with parabolic trough solar collector using Al 2 O 3 and soybean oil nanofluid

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Product

Resources

About

Performance of oil‐based thermal storage system with parabolic trough solar collector using Al ₂ O ₃ and soybean oil nanofluid