On-sun first operation of a 150 kWth pilot solar receiver using dense particle suspension as heat transfer fluid

López, Inmaculada Pérez; Benoit, Hadrien; Gauthier, Daniel J.; Sans, Jean-Louis; Guillot, Emmanuel; Cavaillé, Roland; Mazza, Germán; Flamant, Gilles

doi:10.1063/1.4949080

Cited by 4 publications

(4 citation statements)

References 2 publications

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“…There are several studies suggesting different designs for particle receivers [14,18,21,26,[33][34][35][36][37][38][39][40][41]. Nonetheless, there are some receivers more developed that can be categorized as shown in Figure 2.…”

Section: Solar Receivermentioning

confidence: 99%

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High temperature systems using solid particles as TES and HTF material: A review

et al. 2018

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Thermal energy constitutes up to 90% of global energy budget, centering on heat conversion, transmission, and storage; therefore, the technology for harvesting solar energy worth to be developed. One of them is the concentrated solar power (CSP) solar towers where suntracking heliostats reflect solar radiation to the top of a tower where the receiver is located. The great advantage of CSP over other renewable energy sources is that energy storage is feasible, particularly when the heat transfer fluid (HTF) is also used as thermal energy storage (TES) material which is the case of solid particles. A lot of development efforts are under way for achieving commercial direct solar solid-particle systems. Solid particle systems for transferring high temperature thermal energy are purposed for increasing the efficiency of these systems when converting heat into electric power. This review recapitulates the concept of these systems taking into account the main receiver designs, particle conveyance, particle storage systems and components, the heat exchanger, and the main challenges that must be overcome to split this technology as a commercial one, especially from the materials availability point of view. This review summarizes the actual status of the use of solid particles for TES and as HTF for CSP Tower, and condenses all the available information and classifies them considering the main functional parts and remarking the current research in each part as well as the future challenging issues.

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Section: Solar Receivermentioning

confidence: 99%

“…The solid particles are forced upward through the irradiated tubes by airflow increasing the heat transfer between the tube walls and the solid particles [14]. Both, single a multiple tube experiments have been reported and compared with fluidized direct receiver [11,41,53].…”

Section: Fluidized Indirect Receivermentioning

confidence: 99%

High temperature systems using solid particles as TES and HTF material: A review

et al. 2018

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“…Since Sandia National Laboratory in the United States proposed solid particles as heat absorption and transfer media of concentrating solar power in the 1980s, researchers carried out many experiments and numerical simulation studies on SPSR from the aspects of receiver structure, particle types, characteristic parameters, and flow characteristics (Hruby et al, 1984;Clifford, 2016;Lopez et al, 2016;Sharaf et al, 2019;Li et al, 2020;Marianne et al, 2021). Wang et al (2017) carried out dynamic thermal performance experiments on a falling particle receiver of a single quartz tube and found that particle diameter, particle inlet temperature, particle flow, and type of quartz tube had a significant influence on the temperature of particles at the outlet.…”

Section: Introductionmentioning

confidence: 99%

Numerical study on influence of wind on thermal performance of a solid particle solar receiver

Wang

et al. 2022

Front. Energy Res.

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The effects of wind speed and wind attacking angle on the thermal performance of a solid particle solar receiver (SPSR) are studied by numerical simulation. In addition, the effect of aerowindow on the efficiency of the solar receiver is also explored. The results show that under different wind speeds and attack angles, wind can differently prevent hot air from flowing out and carry cold air into the solar receiver. These two effects compete with each other, resulting in the complex influence law of wind on receiver efficiency. Generally, the increasing wind speed will eventually lead to a negative effect on the thermal efficiency of the receiver. At the incident radiation aperture, the aerowindow formed by the air nozzle can effectively reduce convection heat loss and significantly improve the receiver efficiency. Under the simulation conditions of the present study, there is an optimal air jet velocity to maximize the protection effect of the aerowindow. The heat receiver efficiency increases from 41.7 to 58.2% when the wind is 2.5 m/s and the wind attacking angle is 135°. In the analysis of the energy balance inside the solar receiver, the proportion of radiation heat loss is about one-third, and it is not affected by the aerowindow. Thus, reducing radiation heat loss is very important for further improving the receiver’s efficiency of SPSR.

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“…Particle loss is a common disadvantage in direct radiation SPSR systems [5] that causes various indirect radiation SPSR systems to be proposed. In this context, Lopez et al (2016) [7] performed a test using a fluidized bed solar receiver. In this test, solid particles were used in 16 upstream tubes, and thermal efficiency o f 52-90% an d average temperature of 137-335 °C/m were obtained at a radiation intensity of 63-142 kW/m 2 and a mass flux of 17-44 kg/m 2 -s. Benoit et al [8] tested the particle-wall heat transfer coefficient in a me tal tu be flu idized bed rec eiver and found that the results ranged from 400-1000 W/m 2 -K. Johnson et al (2016) [9] presented a particle-filled receiver model with particles flowing down in a vertical steel tube.…”

Section: Introductionmentioning

confidence: 99%

Performance improvement methods for quartz tube solid particle fluidized bed solar receiver

BÖLÜK

Lüle

2022

Journal of Thermal Engineering

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The conditions to improve performance of quartz tube silicon carbide (SiC) solid particle fluidized bed solar receiver was investigated with computational fluid dynamics (CFD) simulations. The difficulty of experimenting all possible operating conditions was overcome by preparing CFD base input with appropriate models and parameters. The amount of SiC in the bed, the size of particles, and the air inlet velocity were considered as variables. After model verification, in order to evaluate the effect of particle addition, bed without solid particles were simulated first. Outlet temperature of single-phase receiver was calculated as 421 K. Outlet temperatures of 913 K, 895 K, and 881 K were obtained for 400 μm diameter particles in 0.3 m bed height for air inlet velocities of 0.25, 0.3, and 0.35 m/s. Air outlet temperature decreases as air inlet velocity increases. On the other hand, too much reduction at inlet velocity retards the system performance since it affects fluidization. For 400 μm particle diameter and bed height of 0.2 m, outlet temperatures of 994 K, 974 K, and 955 K were found for the same air inlet velocities above. As bed height decreases, air outlet temperature increases. For particle diameters of 300 and 500 μm for bed height of 0.3 m, outlet temperatures of 980 K and 878 K were calculated for appropriate minimum fluidization velocities. Outlet temperature increased with decreasing particle size.

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On-sun first operation of a 150 kWth pilot solar receiver using dense particle suspension as heat transfer fluid

Cited by 4 publications

References 2 publications

High temperature systems using solid particles as TES and HTF material: A review

High temperature systems using solid particles as TES and HTF material: A review

Numerical study on influence of wind on thermal performance of a solid particle solar receiver

Performance improvement methods for quartz tube solid particle fluidized bed solar receiver

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