A5079215955- Thermal properties of materials
- Carbon Nanotubes in Composites
- Heat Transfer and Optimization
- Nanofluid Flow and Heat Transfer
- Photoacoustic and Ultrasonic Imaging
- Thermography and Photoacoustic Techniques
- Tribology and Wear Analysis
- Calcium Carbonate Crystallization and Inhibition
- Catalysts for Methane Reforming
- Magnetic and Electromagnetic Effects
- Nanotechnology research and applications
- Heat and Mass Transfer in Porous Media
- Ultrasound and Hyperthermia Applications
- Pickering emulsions and particle stabilization
- Chemical Looping and Thermochemical Processes
- Infrared Thermography in Medicine
- Adsorption and biosorption for pollutant removal
- Electromagnetic Fields and Biological Effects
- Photovoltaic System Optimization Techniques
- Characterization and Applications of Magnetic Nanoparticles
- solar cell performance optimization
- Composite Material Mechanics
- Heat Transfer Mechanisms
- Solar Thermal and Photovoltaic Systems
- Advanced oxidation water treatment
Autonomous University of Yucatán
2015-2024
Center for Research and Advanced Studies of the National Polytechnic Institute
2012-2014
Instituto Politécnico Nacional
2012-2013
In this paper, it is shown that the thermal conductivity of magnetic fluids, formed by a ferrofluid loaded with carbon nanofibers, can be tuned applying moderate intensity field. The tuning generated orienting nanoparticles in ferrofluid, which turn partially align favoring or hindering heat flow along given direction. Thermal diffusivity at several volume concentrations nanofibers (0, 0.25, 0.50, 1, 2 and 5%) was measured using wave resonant cavity technique, located inside uniform...
A simple photothermal methodology for determining simultaneously and in four different ways the thermal diffusivity effusivity of illuminated layer a two-layer system is presented. The method based on analysis signal whole normalized by corresponding one-layer system. Our approach uses modulation frequencies at which amplitude (phase) passes through unity (zero) reaches its maximum (minimum). It shown that these characteristic are independent effusivities layers, their values can be used to...
Solar collectors represent an attractive green technology for water heating, where sunlight is efficiently absorbed by a selective coating and the generated heat transferred to water. In this work, improvement scale-up of electrodeposited black nickel with modified silica (MS) film deposited spray pyrolysis are reported. The MS material was prepared sol–gel method using tetraethyl orthosilicate addition n-propyl triethoxysilane obtain porous adequate refractive index enhanced flexibility....
Recently, several treatments for fighting malignant tumors have been designed. However these procedures well known inconveniences, depending on their applicability, tumor size and side effects, among others. Magnetic hyperthermia is a safe, non-invasive method cancer therapy. This treatment applied via elevation of target tissue temperature by dissipation heat from Nanoparticles (MNPs), previously located within the tumor. The induction causes cell death therefore removal In this work...
Heat transfer in silicone fluids loaded with high thermal conductivity carbon nanofibers was studied using photoacoustics and wave resonator cavity. It is shown that heat transport depends strongly on volume fraction of nanofibers; particular, a low loading percentage enough to obtain significant changes conductivity. Theoretical models were used determine how affected by structural formations the composite, such as packing aspect ratio (form factor) nanofiber agglomerates viscosity fluid...
Temperature dependence of the thermal diffusivity in composites epoxy and polyester resins, loaded with carbonyl iron particles, has been studied using photopyroelectric technique. Increments eight 2.5 times conductivity polymers are obtained, as volume concentration microparticles is increased from 0% to 40% for 20% matrices, respectively. Additionally, falls systematically temperature 270 400 K; effect more pronounced high composites. The glass transition explored by implementing a...
Landfill leachate treatment is of utmost importance for pollution prevention. For this reason, in study the performance different types activated carbons was monitored applying Fenton-adsorption landfill leachate. Six carbon mesh and nature were studied, all granular type. Only with Fenton a COD removal >75% achieved. Batch experiments done to conduct adsorption isotherm studies an column test subsequently performed Fenton-treated Granular coconut revealed better chemical oxygen demand (COD)...
We propose a methodology to narrow down the selection of design parameters phantoms for calibrating ultrasound devices. For doing so, we model as composite materials. Through mathematical homogenization technique, global properties phantom are given in terms volume fractions its components, their geometric shapes and physical properties. explore these determine ranges that yield desirable values acoustic impedance attenuation. The procedure is illustrated class sandwich-like made layers agar...