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Antonio L. Avila-Marin

Bio: Antonio L. Avila-Marin is an academic researcher from Complutense University of Madrid. The author has contributed to research in topics: Materials science & Heat transfer coefficient. The author has an hindex of 10, co-authored 20 publications receiving 775 citations.

Papers
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TL;DR: A chronological review of the volumetric receivers of most interest for electricity production, identifying their different configurations, materials and real and expected results, and pointing out their main advantages and conclusions based on the multitude of international and national projects reports and references.

523 citations

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TL;DR: In this article, a parametric analysis for a medium to large size (290-500 MW th receiver thermal power) central receiver plant considering the present market trends is presented, and the analysis is divided in 4 steps: • Size and location analysis: for a small to medium size central receiver power plant, three turbine power and three different locations that are involved in the development of power tower plants, have been analyzed to assess the impact over the design characteristics of the solar field and receiver sub-systems and over the levelized electricity cost.

103 citations

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TL;DR: In this paper, two different 1-D model types with local thermal non-equilibrium (LTNE) have been developed independently at CENER and Fraunhofer-IKTS.

65 citations

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TL;DR: This work presents a comprehensive literature review of the main simulation strategies adopted to evaluate VA performance for use in solar towers, where the homogeneous equivalent method makes up the most widely used strategies, in addition to silicon carbide material and foam geometry.
Abstract: An international effort is being made to contribute to greener electricity production. Solar Thermal Electricity (STE) has emerged as the favourite candidate due to the advantages associated with it such as dispatchability, maturity and scalability. Particular interest is raised by Central Receiver Systems (CRSs) due to their ability to work at higher temperatures and concentration factors than Parabolic Troughs. Among the different CRS technologies, Volumetric Absorbers (VAs) working with air have received renewed research interest. VAs consist of porous structures where air is heated directly by the porous matrix. An optimised morphological configuration is essential to increasing the thermal efficiency and minimizing thermal losses. The literature presents a large number of works dealing with VA issues and potentialities, and most of them focus on numerical simulation in order to assess an optimal geometrical design or to point out the best directions in terms of thermal behaviour. This work presents a comprehensive literature review of the main simulation strategies adopted to evaluate VA performance for use in solar towers. The main methodologies, detail simulation and the homogeneous equivalent method, are presented and discussed. Furthermore, different model strategies such as Computational Fluid Dynamics (CFD) and one-dimensional (1D) models are described in detail, together with the importance of the equilibrium state between the fluid phase and the porous phase (local thermal equilibrium and non-equilibrium). Then, the main methods to determine the radiative heat transfer inside the porous phase are described. The study concludes with a discussion of the main trends in the field, where the homogeneous equivalent method, together with the CFD model and local thermal non-equilibrium, make up the most widely used strategies, in addition to silicon carbide material and foam geometry.

59 citations

Journal ArticleDOI
TL;DR: In this article, experimental work carried out on gradual porosity absorbers with the aim of promoting the basic principle of volumetric absorbers was carried out, and a new lab-scale test bed was designed and used.

38 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper, the current status of heat transfer fluid, which is one of the critical components for storing and transferring thermal energy in concentrating solar power systems, is reviewed in detail, particularly regarding the melting temperature, thermal stability limit and corrosion issues.

626 citations

Journal ArticleDOI
TL;DR: In this article, a review of the central receiver designs for concentrating solar power applications with high-temperature power cycles is presented, which includes low-cost and durable materials that can withstand high concentration ratios (~1000 suns), heat-transfer fluids, and low radiative and convective heat losses leading to a thermal efficiency >90%.
Abstract: This paper reviews central receiver designs for concentrating solar power applications with high-temperature power cycles Desired features include low-cost and durable materials that can withstand high concentration ratios (~1000 suns), heat-transfer fluids that can withstand temperatures >650 °C, high solar absorptance, and low radiative and convective heat losses leading to a thermal efficiency >90% Different receiver designs are categorized and evaluated in this paper: (1) gas receivers, (2) liquid receivers, and (3) solid particle receivers For each design, the following information is provided: general principle and review of previous modeling and testing activities, expected outlet temperature and thermal efficiency, benefits, perceived challenges, and research needs Emerging receiver designs that can enable higher thermal-to-electric efficiencies (50% or higher) using advanced power cycles such as supercritical CO 2 closed-loop Brayton cycles include direct heating of CO 2 in tubular receiver designs (external or cavity) that can withstand high internal fluid pressures (~20 MPa) and temperatures (~700 °C) Indirect heating of other fluids and materials that can be stored at high temperatures such as advanced molten salts, liquid metals, or solid particles are also being pursued, but challenges include stability, heat loss, and the need for high-temperature heat exchangers

587 citations

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TL;DR: In this article, the authors reviewed the most important studies on the major components of central receiver solar thermal power plants including the heliostat field, the solar receiver and the power conversion system.
Abstract: The use of central receiver system (CRS) for electricity production promises to be one of the most viable options to replace fossil fuel power plants. Indeed, research and development activities on its basic subsystems have been booming rapidly since 1980s. This paper reviews the most important studies on the major components of central receiver solar thermal power plants including the heliostat field, the solar receiver and the power conversion system. After an overview of Concentrating Solar Power (CSP) technology, current status and applications of the CRSs are highlighted. Next, a detailed literature survey of existing design comprising optical, thermal and thermodynamic analysis, and techniques used to assess components have been arranged. This is followed by experimental investigations in which design concepts are established. The last section contains recent subsequent improvement of such key components as heliostat, receiver and hybrid solar gas turbine that are boosting in many R&D activities merging international collaboration during the past 30 years.

575 citations

Journal ArticleDOI
TL;DR: In this article, the underlying principles of concentrating solar radiation and the latest technological advances and future prospects of solar thermal power and thermochemical fuel production are reviewed and discussed. But the authors focus on concentrating solar energy provides a virtually unlimited source of clean, non-polluting, high-temperature heat.
Abstract: Concentrated solar energy provides a virtually unlimited source of clean, non-polluting, high-temperature heat. This article reviews the underlying principles of concentrating solar radiation and describes the latest technological advances and future prospects of solar thermal power and thermochemical fuel production.

570 citations

Journal ArticleDOI
TL;DR: It is found that direct steam generation (DSG) is a promising innovation which is reviewed in this study and provides a most up-to-date overview of the CSP technologies implemented across the globe.
Abstract: Concentrating solar power (CSP) has received significant attention among researchers, power-producing companies and state policymakers for its bulk electricity generation capability, overcoming the intermittency of solar resources. The parabolic trough collector (PTC) and solar power tower (SPT) are the two dominant CSP systems that are either operational or in the construction stage. The USA and Spain are global leaders in CSP electricity generation, whereas developing countries such as China and India are emerging by aggressive investment. Each year, hundreds of articles have been published on CSP. However, there is a need to observe the overall research development of this field which is missing in the current body of literature. To bridge this gap, this study 1) provides a most up-to-date overview of the CSP technologies implemented across the globe, 2) reviews previously published review articles on this issue to highlight major findings and 3) analyzes future research trends in the CSP research. Text mining approach is utilized to analyze and visualize the scientific landscape of the research. Thermal energy storage, solar collector and policy-level analysis are found as core topics of discussion in the previous studies. With a holistic analysis, it is found that direct steam generation (DSG) is a promising innovation which is reviewed in this study. This paper provides a comprehensive outlook on the CSP technologies and its research which offers practical help to the future researchers who start to research on this topic.

479 citations