- Nanofluid Flow and Heat Transfer
- Heat Transfer and Optimization
- Heat Transfer Mechanisms
- Heat Transfer and Boiling Studies
- Solar Thermal and Photovoltaic Systems
- Solar-Powered Water Purification Methods
- Petroleum Processing and Analysis
- Lubricants and Their Additives
- Tribology and Wear Analysis
- Power Transformer Diagnostics and Insulation
- Carbon Nanotubes in Composites
- Adsorption and Cooling Systems
- Rheology and Fluid Dynamics Studies
- Tribology and Lubrication Engineering
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Flame retardant materials and properties
- Enhanced Oil Recovery Techniques
- Advanced Thermodynamics and Statistical Mechanics
- Photovoltaic System Optimization Techniques
- TiO2 Photocatalysis and Solar Cells
- High voltage insulation and dielectric phenomena
- Phase Change Materials Research
- Polymer Nanocomposites and Properties
- Fluid Dynamics and Thin Films
- Advanced Photocatalysis Techniques
Xi'an University of Science and Technology
2023-2025
Mitchell Institute
2024
London South Bank University
2024
University of Tabriz
2015-2024
University of Oklahoma
2023-2024
University of Science and Technology
2024
Texas A&M University
2024
Ferdowsi University of Mashhad
2013-2023
Mashhad University of Medical Sciences
2011
Isfahan University of Technology
2006-2009
Abstract This study compares the tribological and thermophysical features of lubricating oil using MoS 2 ZnO nano-additives. The average size nanoparticles were 90 nm 30 nm, respectively. suspended Triton X-100 in three different concentrations (0.1, 0.4 0.7 wt.%) a commercial diesel oil. Tribological properties such as mass loss pins, friction coefficient, worn surface morphologies viscosity, viscosity index, flash point pour resulting nano lubricant evaluated compared with those pure...
Abstract This study aimed to assess the UV-shielding features of PMMA-based thin film coatings with addition TiO 2 and ZnO nanoparticles as nanofillers considering different contents. Furthermore, effect /ZnO nanohybrids at ratios concentrations was examined. The XRD, FTIR, SEM, EDX analyses characterized prepared films' functional groups, structure, morphology. Meanwhile, coatings' optical properties UV-protecting capability were investigated by ultraviolet–visible (UV–Vis) spectroscopy....
This study aimed to investigate the effect of titanium dioxide (TiO2) nano additives on thermal performance a pilot-scale cross-flow cooling tower. Moreover, it is continuation our previous using multi-walled carbon nanotubes (MWCNTs) nanofluid, and results were compared with TiO2 work. An experimental design by response surface methodology (RSM) based central composite (CCD) two factors (concentration flow rate) was used effectiveness setup, Merkel number, range. The nanofluids prepared...
Laminar-flow convective heat transfer of nanofluid in a circular tube with constant wall temperature boundary condition is investigated numerically. A dispersion model used to account for the presence nanoparticles. Numerical predictions are agreement experimental results obtained our laboratory different particles sizes. Results clearly show that addition nanoparticles base liquid produces considerable enhancement transfer. Heat coefficients increase nanoparticle concentration. Decreasing...
Abstract Conventional heat transfer fluids such as water and ethylene glycol (EG) can be used for cooling in car radiators, have relatively poor performance. One method increasing radiators uses nanofluids. Nanofluids a new technology are obtained by dispersing nanoparticles on the base fluids. In present study, CuO (60 nm) were mixture of water/EG fluid. Then, thermal performance radiator was studied. The experiment performed different volumetric concentrations (0.05–0.8 vol%) nanofluids...
The present study investigates the dispersion stability, viscosity, shear stress, and thermal conductivity of multiwalled carbon nanotubes in presence gum arabic (MWCNT-GA) as well functionalized MWCNT with cysteine (MWCNT-Cys) silver (MWCNT-Ag). To realize good dispersibility high enhancement, were first by then ions covalently attached through thiol group cysteine. This efficient technique using a combination functional based on was developed to enhance suspension. At every sequential step...
In this study, a small flat plate solar collector (FPSC) was fabricated and tested for studying the effects of different nano particle concentrations in water as base fluid. Three flow rates (i.e. 36, 72 108 lit/m2.hr) four particles concentration ratios 0, 0.1, 0.2 0.3 % wt) were investigated. Experimental testing method selected based on EUROPEAN STANDARD EN 12975-2 quasi-dynamic test (QDT). Adding to brought about an improvement initial efficiency FPSC between 3.5 10.5% index total 2.6 7%...