Efficient Volumetric Absorption Solar Thermal Platforms Employing Thermally Stable - Solar Selective Nanofluids Engineered from Used Engine Oil

  title={Efficient Volumetric Absorption Solar Thermal Platforms Employing Thermally Stable - Solar Selective Nanofluids Engineered from Used Engine Oil},
  author={Nirmal Singh and Vikrant Khullar},
  journal={Scientific Reports},
We report a low cost and scalable method to synthesize solar selective nanofluids from ‘used engine oil’. The as-prepared nanofluids exhibit excellent long-term stability (presently tested up to 6 months under undisturbed stagnant conditions at room temperature) and photo-thermal conversion efficiency. Moreover, these were found to retain their stability and functional characteristics even after extended periods (72 hours) of high temperature (300°C) heating, ultra violet light exposure and… 

Experimental Study of Single-Slope Solar Still Coupled With Nanofluid-Based Volumetric Absorption Solar Collector

In the present endeavor, a conventional single-slope solar still has been modified to improve its performance by coupling it with a novel nanofluid-based volumetric absorption solar collector

Performance Bounds of Nanoparticles Laden Volumetric Absorption Solar Thermal Platforms in Laminar Flow Regime

Recent success in synthesizing thermally stable nanofluids at low costs is a significant breakthrough in the evolution of volumetric absorption based solar thermal systems. However, we have yet not

Nanofluid Filled Enclosures: Potential Photo-Thermal Energy Conversion and Sensible Heat Storage Devices

In the present work we propose "nanofluid filled enclosures" as potential photo-thermal energy conversion and sensible heat storage devices. Herein, the optical charging of the nanofluid has been

Solar Thermal Conversion of Plasmonic Nanofluids: Fundamentals and Applications

Plasmonic nanofluids show great interests for light-matter applications due to the tunable optical properties. By tuning the nanoparticle (NP) parameters (material, shape, and size) or base fluid,

Optical nanofluids for direct absorption-based solar-thermal energy harvesting at medium-to-high temperatures

Understanding the abnormal thermal behavior of nanofluids through infrared thermography and thermo-physical characterization

The presence of an exothermic reactive processes in the calorimetry of the mixture with 1 wt% of NPs evidences a reactive process (ionic exchange), which contribute to the heat capacity increase and thus, they explain the anomalous behavior of the heatcapacity in nanofluids.



A stable carbon nanotube nanofluid for latent heat-driven volumetric absorption solar heating applications

Recently, direct solar collection through the use of broadly absorbing nanoparticle suspensions (known as nanofluids) has been shown as a promising method to improve efficiencies in solar thermal

Predicted Efficiency of a Low-Temperature Nanofluid-Based Direct Absorption Solar Collector

Due to its renewable and nonpolluting nature, solar energy is often used in applications such as electricity generation, thermal heating, and chemical processing. The most cost-effective solar

Stably dispersed high-temperature Fe3O4/silicone-oil nanofluids for direct solar thermal energy harvesting

Poor dispersion stability has become one of the major obstacles to the practical application of thermal nanofluids, especially for silicone-oil-based nanofluids that are used at relatively high

Nanofluid-based direct absorption solar collector

Solar energy is one of the best sources of renewable energy with minimal environmental impact. Direct absorption solar collectors have been proposed for a variety of applications such as water