This study compares environmental and economic impacts of using nanofluids to enhance solar collector efficiency as compared to conventional solar collectors for domestic hotwater systems. Results show that for the current cost of nanoparticles the nanofluid based solar collector has a slightly longer payback period but at the end of its useful life has the same economic savings as a convention...

The hybrid materials are an impressive class of nanofluids with exciting thermal outcomes and present applications in enhancing the heat transfer procedure, solar energy, extrusion processes, different engineering processes. current contribution aims to reflect improved mechanism phenomenon for nanofluids. Aluminum oxide, copper, copper oxide at solid volume fractions used report phenomenon. Fo...

This paper presents a linear stability analysis of natural convection in a horizontal layer of a viscoelastic nanofluid. The Oldroyd B model was utilized to describe the rheological behavior of a viscoelastic nanofluid. The model used for the nanofluid incorporated the effects of Brownian motion and thermophoresis. The onset criterion for stationary and oscillatory convection was derived analyt...

Transport properties of nanofluids are extensively studied last decade. This has been motivated by the use of nanosized systems in various applications. The viscosity of nanofluids is of great significance as the application of nanofluids is always associated with their flow. However, despite the fairly large amount of available experimental information, there is a lack of systematic data on th...

Dispersion stability of nanoparticles in the liquid media is of great importance to the utilization in practice. This study aims to investigate the effects of mechanical dispersion method on the dispersibility of functionalized TiO2 nanoparticles in the transformer oil. Dispersion methods, including stirring, ultrasonic bath, and probe processes, were systematically tested to verify their versa...

Duct flows constitute an important category of modern thermal engineering. Optimizing efficiency has become a significant objective in the 21st century in, for example, heating ventilation and air-conditioning (HVAC), coolant or heat transfer fluid nuclear power reactor, exchanger design etc., this been achieved by either new materials (improved insulation properties) constituting duct walls, n...

Nanofluids, which are engineered suspensions of nanoparticles in a solvent such as water, have been found to show enhanced coolant properties such as higher critical heat flux and surface wettability at modest concentrations, which is a useful characteristic in nuclear power plants (NPPs). This study attempted to provide an example of engineering applications in NPPs using nanofluid technology....

The mass and heat transport of Casson nanofluid flow in a channel under the influence magnetic field, generation, chemical reaction, ramped concentration, temperature is studied. Nanoparticles copper (Cu) are inserted sodium alginate (SA) to make nanofluid. definition time-fractional Caputo derivative applied have fractional model. analytical results temperature, velocity, skin friction, Sherwo...