Thermal‐Hydraulic Performance and Entropy Generation Analysis of a Square Molten Salt Absorber Tube with Wavy‐Tape Insert at Low Reynolds Number

Annalen der Physik, Год журнала: 2025, Номер unknown

Опубликована: Фев. 25, 2025

Abstract During periods of weak sunlight, to maintain the molten salt temperature in a square absorber tube (SAT), flow is at low Reynolds number ( Re ), accompanied by heat transfer (HR) performance. To enhance HR performance (AE) , wavy‐tape insert (WET) first introduced. The AE with WET evaluated under various operational conditions and structural parameters. Results show that generates substantial swirling AE, which promotes fluid mixing then enhances HR. Compared smooth SAT, friction factor f ) for increases least 2.55 times, whereas Nusselt Nu 1.11–5.77 times. Additionally, entropy generation rate (EGR) exergy loss (EL) decrease 35.54%–82.65% 43.43%–84.61%, respectively. Furthermore, transport efficiency thermal energy (TETE) (EE) increase 6.58%–26.24% 10.26%–46.13%, This study may have potential offer valuable insights design particularly terms improving efficiency.

Язык: Английский

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Selection of Sol-Gel Coatings by the Analytic Hierarchy Process and Life Cycle Assessment for Concentrated Solar Power Plants

Sustainability, Год журнала: 2025, Номер 17(6), С. 2449 - 2449

Опубликована: Март 11, 2025

Sol-gel coatings are commonly used to prevent corrosion from molten salt mixtures in CSP plants. Until now, they have been driven primarily by cost considerations, without integrating environmental criteria into the modeling and decision-making process. The novelty of this study lies development an evaluation framework that incorporates impact alongside technical economic factors, providing a more sustainable approach. This work assesses porosity, thermal shock resistance, thickness determine optimal sol-gel coating. For purpose, multi-criteria technique “Analytic Hierarchy Process” (AHP) Life Cycle Assessment (LCA) methodology implemented. results show scores obtained for 3YSZ-5A (5% mol) coating higher than those 3YSZ (3% 3YSZ-20A (20% coatings, between 1.52 1.69, respectively. is solution among all systems analyzed, with score 0.61 AHP pt. same type molar concentration (20%) achieved 0.55 Finally, received lowest rating, 0.36 insights generated research will support design maintenance

Язык: Английский

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Improving the thermal performance of parabolic trough solar collectors by incorporating cylindrical attachments within the absorber tube

Applied Thermal Engineering, Год журнала: 2025, Номер unknown, С. 126587 - 126587

Опубликована: Апрель 1, 2025

Язык: Английский

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Optimisation of heat transfer in the absorber tube of a cylindroparabolic trough solar collector

Results in Engineering, Год журнала: 2025, Номер 26, С. 105226 - 105226

Опубликована: Май 15, 2025

Язык: Английский

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Thermal analysis of hybridized AA7072 and AA7075 alloys nanomaterials within MHD Darcy-Forchheimer flow through a moving thin needle

Thermal advances., Год журнала: 2024, Номер unknown, С. 100020 - 100020

Опубликована: Дек. 1, 2024

Язык: Английский

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