A practical upper-bound efficiency model for solar power plants
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Eduardo González-Mora
,
Ram Poudel
Abstract
A generalized model for the maximum work rate extractable from the Sun is developed considering a reversible and an endoreversible system to define a more practical upper-bound efficiency for the conversion of solar radiation into work and power. This model is based on a photo-thermal work extractor in communication with a high-temperature radiation reservoir and a low-temperature heat sink. Following the model, a parametric analysis of the concentration acceptance product (ξ) and thermal conductance is performed to identify the interdependence of variables for the solar exergy. The results are compared with existing models to provide a practical baseline of work and power extractable from concentrated solar power plants (CSP) technologies. Therefore, it is possible to quantify the irreversibilities of an idealized thermodynamic system operating between the Sun and the absorber (via radiative transfer) and the environment (via convective transfer).
Funding source: CONACyT Graduate Scholarship for EGM https://doi.org/10.13039/501100003141
Award Identifier / Grant number: 863595
Acknowledgement
EGM would like to acknowledge the participants at Thermodynamics 2.0 | 2020 and 2022 conferences for the fruitful discussions about finite-time thermodynamics.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: CONACyT Graduate Scholarship for EGM (863595). https://doi.org/10.13039/501100003141.
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Conflict of interest statement: The authors have no conflicts to disclose.
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Artikel in diesem Heft
- Frontmatter
- Original Research Articles
- The Onsager–Machlup theory of fluctuations and time-dependent generalized normal distribution
- Impact of wavy porous layer on the hydrodynamic forces and heat transfer of hybrid nanofluid flow in a channel with cavity under the effect of partial magnetic field
- Natural convection of a viscoelastic Cattaneo–Christov fluid bounded by thick walls with finite thermal conductivity
- A simplified analysis of the Feynman pallet and ratchet mechanism considering different forms of generated power
- Energy production in one-qubit quantum Agrawal machines
- The optimization of heat transfer in thermally convective micropolar-based nanofluid flow by the influence of nanoparticle’s diameter and nanolayer via stretching sheet: sensitivity analysis approach
- A practical upper-bound efficiency model for solar power plants
- Generalized Onsager fluxes based on inexact differential 1-form
Artikel in diesem Heft
- Frontmatter
- Original Research Articles
- The Onsager–Machlup theory of fluctuations and time-dependent generalized normal distribution
- Impact of wavy porous layer on the hydrodynamic forces and heat transfer of hybrid nanofluid flow in a channel with cavity under the effect of partial magnetic field
- Natural convection of a viscoelastic Cattaneo–Christov fluid bounded by thick walls with finite thermal conductivity
- A simplified analysis of the Feynman pallet and ratchet mechanism considering different forms of generated power
- Energy production in one-qubit quantum Agrawal machines
- The optimization of heat transfer in thermally convective micropolar-based nanofluid flow by the influence of nanoparticle’s diameter and nanolayer via stretching sheet: sensitivity analysis approach
- A practical upper-bound efficiency model for solar power plants
- Generalized Onsager fluxes based on inexact differential 1-form
