High efficiency concentrated solar power plant receivers using periodic microstructured absorbing layers

Kämpfe, Thomas; Iff, Wolfgang; Celle, Frédéric; Reynaud, Stéphanie; Pouit, Thomas; Soum‐Glaude, Audrey; Gal, Alex Le; Dubost, Laurent; Jourlin, Yves

doi:10.1016/j.solmat.2016.10.027

Cited by 16 publications

(13 citation statements)

References 28 publications

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“…Another route is to directly engineer the Si surface with AR structures, such as through colloidal lithography (Dev et al 2014), wet-etching processes (Adamian et al 2000), ion etching (Bien et al 2012), etc. Various micro-and submicro-structures have been used in PV cells (Zang et al 2013), or on the Si slabs too (Bichotte et al 2017;Jovanov et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Leaf-structure patterning for antireflective and self-cleaning surfaces on Si-based solar cells

et al. 2018

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As the naturally evolved sunlight harvester, plant foliage is gifted with dedicated air-leaf interfaces countering light reflections and ambient ruins, yet offering antireflective and selfcleaning prototypes for manmade photovoltaics. In this work, we report on an ecological and bioinspired coating strategy by replicating leaf structures onto Si-based solar cells. Transparent photopolymer with leaf surface morphologies was tightly cured on Si slabs through a facile double transfer process. After bio-mimicked layer coverages, sunlight reflection drops substantially from more than 35% down to less than 20% once lotus leaf was employed as the master. Consequentially, 10.9% gain of the maximum powers of the photovoltaic is obtained. The leaf replicas inherited their masters' hydrophobicity which is resistant to acidic and basic conditions. Physically adhered dusts are easily removed by water rolling. Lightwave guidance mechanism among air-polymer-Si interfaces is explicated through optical simulations, while wettability through the morphological impacts on hydrophobic states. Taking advantages of varieties of foliage species and surface structures, the work is hoped to boost large-scale industrial designs and realizations of the bionic antireflective and superhydrophobic coating on future solar cells.

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Section: Introductionmentioning

confidence: 99%

Leaf-structure patterning for antireflective and self-cleaning surfaces on Si-based solar cells

et al. 2018

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“…1,2 = ( 1 + 2 + 3 ) ± 2√ = 1 2 + 2 3 + 3 1 (15) This relations conduct to (Vieta formulas) in [Eq. (16].…”

Section: Fractal Descartesmentioning

confidence: 99%

“…Based on a geometrical optimization was possible to calculate an optimum ratio , width and length of the PCM. Results shows a numerically model validated with CFD study obtaining a good approximation of the real optimum The modeling approach for 1D microstructure absorbing multi-layers for Concentrated Solar Power (CSP) receivers is described in [16], the studied was use an optimized multilayer structure to achieve a higher absorption in receiver a Chandezon method was used as theoretically model to optimize grating profiles. In experimental results a total of 96.5% was obtained for absorption in the visible and UV range, which means an enhancement of 2% in comparison to non-structured coatings.…”

Section: Introductionmentioning

confidence: 99%

Parabolic Trough Collector with Internal Fractal Fins in Receiver to Increase Thermal Performance in Working Fluid

Palacios¹,

Amaya²,

Ramos³

2020

Preprint

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Concentrated solar power technologies have been studied in recent years as a potential solution for energy production industry , however this kind of systems face different challenges in order to increase thermal performance and efficiency. This paper presents the results of a thermal analysis on a parabolic trough collector with different receivers internal fins configurations, systems were studied in CFD Solidworks® flow simulation software and compared with a traditional parabolic collector with cylindrical receiver. Results shows that the lowest thermal performance was achieved with a cylindrical pipe, instead fractal fins receiver with 5 internal fins achieves a temperature increase of 27% and the best pipe configuration was fractal Descartes with 12 internal pipes which e the cylindrical temperature in 29%.

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“…State-of-the-art surface texturing methods in CST coatings include the use of sacrificial beads with pre-selected sizes that burn during curing, thus introducing the desired microporosity in the coating, 15,26,27 and photolithography-based methods that can yield highly accurate surface morphologies. 12,28 However, methods based on sacrificial beads often lead to highly porous coatings that may weaken their mechanical strength. Photolithography-based methods can produce highly dense layers with micro-textured morphology, but the scalability is a major issue due to the vacuum requirements for deposition on tubes larger than 3 m. 28 Solar thermal receivers with tube lengths larger than 10 m are common in the industry.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient and durable solar thermal energy harvesting via scalable hierarchical coatings inspired by stony corals

Torres

Tsuda

Murakami

et al. 2022

Energy Environ. Sci.

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High efficiency concentrated solar power plant receivers using periodic microstructured absorbing layers

Cited by 16 publications

References 28 publications

Leaf-structure patterning for antireflective and self-cleaning surfaces on Si-based solar cells

Leaf-structure patterning for antireflective and self-cleaning surfaces on Si-based solar cells

Parabolic Trough Collector with Internal Fractal Fins in Receiver to Increase Thermal Performance in Working Fluid

Highly efficient and durable solar thermal energy harvesting via scalable hierarchical coatings inspired by stony corals

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