A5053069706- Solar Thermal and Photovoltaic Systems
- Photovoltaic System Optimization Techniques
- Heat Transfer Mechanisms
- Advancements in Solid Oxide Fuel Cells
- Fuel Cells and Related Materials
- Heat Transfer and Boiling Studies
- Refrigeration and Air Conditioning Technologies
- Heat Transfer and Optimization
- Chemical Looping and Thermochemical Processes
- Building Energy and Comfort Optimization
- Nanofluid Flow and Heat Transfer
- Combustion and flame dynamics
- Radiative Heat Transfer Studies
- Advanced Multi-Objective Optimization Algorithms
- Solar-Powered Water Purification Methods
- Solar Energy Systems and Technologies
- Wind and Air Flow Studies
- Biodiesel Production and Applications
- Electrocatalysts for Energy Conversion
- Fluid Dynamics and Mixing
- Advanced Combustion Engine Technologies
- Coronary Interventions and Diagnostics
- Aerodynamics and Fluid Dynamics Research
- Calcium Carbonate Crystallization and Inhibition
- Hygrothermal properties of building materials
Universidad de Guanajuato
2015-2024
<h2>Abstract</h2> This study conducts a numerical comparison of the thermal performance three distinct working fluids (pure water, TiO<sub>2</sub>, and SiO<sub>2</sub> water-based nanofluids) within an evacuated tube solar collector using Computational Fluid Dynamics. The evaluates thermohydraulic alongside global local entropy generation rates, while considering variations in radiation values inlet mass flow rates. Results indicate that nanofluids demonstrate superior under low radiation,...
In the present work, effects of electric fields in water-in-oil colloidal systems are studied numerically with smoothed particle hydrodynamic method. Several simulations were carried out free-code DualSPHysics for a water–oil system droplet-size distribution less than 120 μm DualSPHysics. The assumed absence surfactant agents and constant temperature. initial droplet dispersion was generated random positions using numbers workspace boundaries as upper lower limits correcting overlapping if...
In this work, a numerical analysis of three different flat plate solar collectors was conducted using their entropy generation rates. Specifically, the Computational Fluid Dynamics (CFD) technique used to compare detailed performance conventional and zigzag tube geometries (FPCs) in terms The effects fluid viscosity, heat transfer, loss were considered for local global rate analyses. Variations on inlet volumetric flow FPCs from 1.0 9.0 L/min simulated under average radiation one year state...
The economic emission dispatch (EED) is a highly constrained nonlinear multiobjective optimization problem with convex (or nonconvex) solution space. These characteristics and constraints make the EED difficult to solve. Several approaches for have been proposed, such as deterministic techniques, stochastic or combination of both. This work presents use an algebraic (deterministic) technique, numerical polynomial homotopy continuation (NPHC) method, solve problem. A comparison sequential...
Abstract This paper investigates the effect of trapezoidal baffles inside a planar-type solid oxide fuel cell. To achieve objective, four cases are proposed: (1) simple planar geometry as base case, (2) channel, (3) air and (4) in both channels. The height channels cell increases along direction fluid flow. numerical investigation is based on three-dimensional computational dynamics (CFD) model that takes into account phenomenon mass transfer, heat species transport, electrochemical...
The aim of this paper is to evaluate numerically the effect varying electrochemical model and its parameters on performance entropy generation a mono-block-layer build (MOLB) type geometry solid oxide fuel cell. Particularly, influence exchange current density, electrical conductivity electrodes electrolyte has been studied prediction thermodynamic irreversibility by means an analysis considered. numerical consider 3-D CFD that takes into account mass transfer, heat species transport,...
A solar radiation model is applied to a low temperature water-in-glass evacuated tubes collector predict its performance via computational fluid dynamics (CFD) numerical simulations. This approach allows obtaining the transmitted, reflected, and absorbed flux heat on surface of according geographical location, date, hour day. Different environmental operational conditions were used obtain outlet collector; these results validated against four experimental tests based an Official Mexican...
Abstract An analysis of the flow that depends on fuel composition (natural gas) in combustor–transition piece system, applying computational fluid dynamics, is presented. The study defines velocity and temperature profiles at exit transition hot streak along system. variation amount N2 contained fuel, track influences distribution input first stage vanes blades gas turbine. takes place a three-dimensional model steady state using FLUENT® 6.3.26, k-ε turbulence chemical equilibrium to...