Advances in central receivers for concentrating solar applications

Ho, Clifford K.

doi:10.1016/j.solener.2017.03.048

Cited by 314 publications

(84 citation statements)

References 111 publications

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“…The total capacity of CSP-based commercially operating projects around the world as of 2018 is 5.469 GW, and for the Middle East, it is only 156 MW [2]. In [4], the authors reviewed the technological trends and emerging technologies in central receiver systems to operate at temperatures greater than 700 • C so as to achieve higher efficiency. The prospects of gas-and liquid-based receiver systems that can achieve this high range of operating temperatures has also been reviewed.…”

Section: Literature Reviewmentioning

confidence: 99%

“…There are four types of CSP technologies: Parabolic trough collector, central receiver, linear fresnel reflector, and parabolic dish systems. Among these technologies, parabolic trough collector and central receiver plants are most popular for utility scale power generation.Among the CSP technologies mentioned above, solar power tower or central receiver-based CSP technology is projected to be cheaper by 2020 [4]. They are gaining popularity when compared to parabolic trough systems due to their ability to operate at higher HTF temperature, thereby substantially bringing down the thermal energy storage (TES) costs.…”

mentioning

confidence: 99%

“…Among the CSP technologies mentioned above, solar power tower or central receiver-based CSP technology is projected to be cheaper by 2020 [4]. They are gaining popularity when compared to parabolic trough systems due to their ability to operate at higher HTF temperature, thereby substantially bringing down the thermal energy storage (TES) costs.…”

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confidence: 99%

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Performance Analysis and Optimization of Central Receiver Solar Thermal Power Plants for Utility Scale Power Generation

Praveen

2019

Sustainability

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The paper puts forth the design, performance analysis, and optimization of a 100 MWe central receiver solar thermal power plant with thermal energy storage capability, which can be utilized effectively to meet the renewable energy targets of the Kingdom of Saudi Arabia (KSA). In this paper, three representative sites in KSA are selected for analysis as these sites experience an annual average direct normal irradiance (DNI) of more than 5.5 kWh/m 2 /day. The optimization approach presented in this work aims to arrive at the best possible design parameters that suit a particular location in accordance with its DNI profile. From the analysis, an annual energy of 559.61 GWh can be generated in Yanbu with eight hours of thermal energy storage, 18.19% plant efficiency, and a capacity factor of 61.1%. The central receiver plant in Abha would be able to offer an annual energy of 536.31 GWh with the highest plant efficiency of 18.97% and a capacity factor of 60.7%. The performance of the proposed design in the two locations of Yanbu and Abha fares better when compared to the operational plant data of central receiver plant in Crescent Dunes. Based on the findings, the proposed 100 MWe central receiver Solar thermal power plants can be effectively implemented in KSA to meet the energy demands of the region.Sustainability 2020, 12, 127 2 of 16 production. According to the Vision 2030 plan, KSA has announced plans to generate 9.5 GW of electricity from renewable sources by 2030, and the government aims to invest more than 109 billion USD in the solar energy sector. In continuance with the Vision 2030 plan, and to meet the energy challenges of tomorrow, King Abdullah City for Atomic and Renewable Energy (K.A.CARE) has set its target to install 54 GW of power from RE sources by 2032. Interestingly, the major share (25 GW) of this target is expected to come from concentrated solar power (CSP), and the rest, 16 GW, from photovoltaic (PV) systems that directly convert solar energy to electrical energy. Presently, the total installed solar energy capacity of Saudi Arabia is only 139 MW, of which 89 MW is generated from PV technology and 50 MW from CSP systems [2]. The research work will support the policy makers in identifying the potential sites across the Kingdom for the installation of central receiver (also called solar tower or power tower) plants, which is a type of CSP plant wherein an array of dual-axis tracking reflectors (heliostats) concentrates sunlight on a tower-mounted receiver that contains heat transfer fluid (HTF). The HTF can be heated to 500-1000 • C, which can be then used as a heat source for power generation. Stand-alone renewable energy plants have challenges to deliver stable power to the grid. These plants require backup support in terms of electrical or thermal energy storage to supply firm power. The electrical storage requires large capital outlay and maintenance. Although the capital cost for PV systems is lower than that of CSP systems, the former accounts for a higher cost of power generation when t...

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Section: Literature Reviewmentioning

confidence: 99%

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confidence: 99%

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Performance Analysis and Optimization of Central Receiver Solar Thermal Power Plants for Utility Scale Power Generation

Praveen

2019

Sustainability

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“…Another example is found when studying fires, in which turbulence, soot particles, and radiation are strongly interconnected resulting in very complex physical processes [4]. From an industrial point of view, important applications include the atomization of liquid fuels in combustion chambers [5], soot formation in rocket engines [6], and more recently, volumetric particle-based solar receivers for energy harvesting [7].Even in the simplest configuration, e.g., homogeneous isotropic turbulence, particle-laden turbulent flow is known to exhibit complex interactions between the carrier and dispersed phases in the form of preferential concentration and turbulence modulation [8]. Preferential concentration is the phenomenon by which heavy particles tend to avoid intense vorticity regions and accumulate in regions of high strain rate, while turbulence modulation refers to the alteration of fluid flow characteristics in the near-field region of particle clusters as a result of two-way coupling effects, e.g., enhanced dissipation, kinetic energy transfer, or formation of wakes and vortexes.…”

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Bi-fidelity approximation for uncertainty quantification and sensitivity analysis of irradiated particle-laden turbulence.

Fairbanks

Jofre

Geraci

et al. 2018

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Efficiently performing predictive studies of irradiated particle-laden turbulent flows has the potential of providing significant contributions towards better understanding and optimizing, for example, concentrated solar power systems. As there are many uncertainties inherent in such flows, uncertainty quantification is fundamental to improve the predictive capabilities of the numerical simulations. For large-scale, multiphysics problems exhibiting high-dimensional uncertainty, characterizing the stochastic solution presents a significant computational challenge as many methods require a large number of high-fidelity solves. This requirement results in the need for a possibly infeasible number of simulations when a typical converged high-fidelity simulation requires intensive computational resources. To reduce the cost of quantifying highdimensional uncertainties, we investigate the application of a non-intrusive, bi-fidelity approximation to estimate statistics of quantities of interest associated with an irradiated particle-laden turbulent flow. This method relies on exploiting the low-rank structure of the solution to accelerate the stochastic sampling and approximation processes by means of cheaper-to-run, lower fidelity representations. The application of this bi-fidelity approximation results in accurate estimates of the QoI statistics while requiring a small number of high-fidelity model evaluations.Turbulent flow laden with inertial particles, or droplets, in the presence of thermal radiation is encountered in a wide range of natural phenomena and industrial applications. For instance, it is well established that turbulence-driven particle inhomogeneity plays a fundamental role in determining the rate of droplet coalescence and evaporation in ocean sprays [2] and atmospheric clouds [3]. Another example is found when studying fires, in which turbulence, soot particles, and radiation are strongly interconnected resulting in very complex physical processes [4]. From an industrial point of view, important applications include the atomization of liquid fuels in combustion chambers [5], soot formation in rocket engines [6], and more recently, volumetric particle-based solar receivers for energy harvesting [7].Even in the simplest configuration, e.g., homogeneous isotropic turbulence, particle-laden turbulent flow is known to exhibit complex interactions between the carrier and dispersed phases in the form of preferential concentration and turbulence modulation [8]. Preferential concentration is the phenomenon by which heavy particles tend to avoid intense vorticity regions and accumulate in regions of high strain rate, while turbulence modulation refers to the alteration of fluid flow characteristics in the near-field region of particle clusters as a result of two-way coupling effects, e.g., enhanced dissipation, kinetic energy transfer, or formation of wakes and vortexes. The physical complexity is further increased by the simple addition of solid walls as turbophoresis [9], i.e., tendency of particles to migr...

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Solar Receivers

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2022

Concentrating Solar Thermal Energy

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Advances in central receivers for concentrating solar applications

Cited by 314 publications

References 111 publications

Performance Analysis and Optimization of Central Receiver Solar Thermal Power Plants for Utility Scale Power Generation

Performance Analysis and Optimization of Central Receiver Solar Thermal Power Plants for Utility Scale Power Generation

Bi-fidelity approximation for uncertainty quantification and sensitivity analysis of irradiated particle-laden turbulence.

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