Nanofluids for Solar Thermal Collection and Energy Conversion

M, Abdullah Hussain; Yesudasan, Sumith; Chacko, Salvio

doi:10.20944/preprints202012.0259.v1

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…Hence, plant-mediated green synthesis has an edge over other processes. Plant extracts are among the most important bio-reductants, since they are comparatively easy to handle, widely accessible, relatively inexpensive, and have been extensively researched for the green synthesis of other nanomaterials [67][68][69][70][71][72][73][74][75][76] (Table 1). The tautomeric conversion of flavonoids from the enol form to the keto form generates reactive hydrogen species that act as metal ion-reducing agents [77].…”

Section: Green Synthesis Of Nanoparticlesmentioning

confidence: 99%

The Ethnopharmacological Properties of Green-Engineered Metallic Nanoparticles against Metabolic Disorders

et al. 2023

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Metabolic syndrome is a multifaceted pathophysiologic condition that is largely caused by an imbalance between caloric intake and energy expenditure. The pathogenesis of metabolic syndrome is determined by an individual’s genetic/epigenetics and acquired factors. Natural compounds, notably plant extracts, have antioxidant, anti-inflammatory, and insulin-sensitizing properties and are considered to be a viable option for metabolic disorder treatment due to their low risk of side effects. However, the limited solubility, low bioavailability, and instability of these botanicals hinder their performance. These specific limitations have prompted the need for an efficient system that reduces drug degradation and loss, eliminates unwanted side effects, and boosts drug bioavailability, as well as the percentage of the drug deposited in the target areas. The quest for an enhanced (effective) drug delivery system has led to the formation of green-engineered nanoparticles, which has increased the bioavailability, biodistribution, solubility, and stability of plant-based products. The unification of plant extracts and metallic nanoparticles has helped in the development of new therapeutics against metabolic disorders such as obesity, diabetes mellitus, neurodegenerative disorders, non-alcoholic fatty liver, and cancer. The present review outlines the pathophysiology of metabolic diseases and their cures with plant-based nanomedicine.

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Section: Green Synthesis Of Nanoparticlesmentioning

confidence: 99%

The Ethnopharmacological Properties of Green-Engineered Metallic Nanoparticles against Metabolic Disorders

et al. 2023

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Nanofluids in solar collectors: a comprehensive review focused on its sedimentation

Bocanegra,

Marchitto,

Misale

2024

Clean Techn Environ Policy

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The use of nanofluids as working fluids in energy systems, such as solar collectors, natural circulation loops, geothermal plants, and nuclear reactors, has the potential to enhance their efficiency. Nanofluids have improved optical and thermal properties, enabling better energetic performance than common working fluids. However, the stability of nanofluids depends on multiple factors that can cause nanoparticles to sediment in the base fluid, leading to the degradation of physical properties that affect system performance. Experimental, analytical, and computational-based approaches have been used to study the sedimentation process in nanofluids. This review presents a comprehensive comparison of these research methods, with a particular focus on the role of gravitational sedimentation when nanofluids are used in solar collectors. Sedimentation remains the primary limitation of the engineering application of nanofluids. Some key factors that affect this process, such as volumetric concentration, flow regime, and additives, have been addressed to solve the sedimentation problem. However, other factors that can influence sedimentation in solar collectors, such as thermal cycling, ultraviolet radiation, and rest periods, remain open problems that require extensive investigation in the future. Graphical abstract

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Achilles: A Tool for Contact Angle Estimation from Molecular Dynamics Simulations

Yesudasan¹

2021

Preprint

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In this work, a tool for estimating the contact angle from the molecular dynamics simulations is developed and presented. The tool (Achilles) can detect water droplet on hydrophobic and hydrophilic surfaces. The tool can reconstruct the droplets broken across the periodic boundaries. Further a neighbor density based accurate filter is used to find the droplet liquid vapor interface and a circle is fitted using it after removing the dense layers of water next to solid surface. This fitted circle is solved for contact angle and results are outputted in the form of graphical images and text. The entire content of the internal computations of the tool is broken down into 4 phases and users can monitor the outcomes at every phase through output images. The tool is tested using sample molecular dynamics results of water droplet on hydrophobic and hydrophilic surfaces. We believe this tool can be a good addition to the molecular dynamics simulation community who work on the interfacial physics, droplet evaporation, super hydrophobic surfaces, and wettability etc.

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Nanofluids for Solar Thermal Collection and Energy Conversion

Cited by 3 publications

References 13 publications

The Ethnopharmacological Properties of Green-Engineered Metallic Nanoparticles against Metabolic Disorders

The Ethnopharmacological Properties of Green-Engineered Metallic Nanoparticles against Metabolic Disorders

Nanofluids in solar collectors: a comprehensive review focused on its sedimentation

Achilles: A Tool for Contact Angle Estimation from Molecular Dynamics Simulations

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